TCA0372 shortage?...

P

Phil Hobbs

Guest
ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
 
On 2020-07-23 15:17, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 12:07:14 PM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs
wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but
total distributor stock is less than 1k pieces and the
quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V
rail, and my go-to floating ground generator is getting
scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new
delay generator. It makes programmable VH and VL for my GaN
totem pole.


Thanks! I ordered 100 from Digikey, which will hold me for
prototype quantities. I emailed the East Coast sales manager,
so we\'ll see.

Can you use alternative? For instance, lm358 is cheaper and
available.


But doesn\'t source and sink an amp. The TCA0372 is a unique
part--it\'s like a four-quadrant LM317 with much lower dropout
voltage.

A 8 pins, 10 cent lm358 plus buffer (FET or darlington) is still
cheaper and smaller than the $1, 16 pins TCA0372.

Just a suggestion.
Click to expand...

Thanks.

Making it four-quadrant takes significantly more parts than that,
though, plus there\'s the class-AB bias current issue to worry about.

I could use an LM675 or OPA551 to make the floating ground and an LM337
upside down to make the floating \'negative\' supply, but that\'s more cost
and board space than a 48-cent TCA0372 dual.

Sure hope ON Semi doesn\'t stop making them anytime soon.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
 
On 2020-07-23 15:17, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 12:07:14 PM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs
wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but
total distributor stock is less than 1k pieces and the
quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V
rail, and my go-to floating ground generator is getting
scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new
delay generator. It makes programmable VH and VL for my GaN
totem pole.


Thanks! I ordered 100 from Digikey, which will hold me for
prototype quantities. I emailed the East Coast sales manager,
so we\'ll see.

Can you use alternative? For instance, lm358 is cheaper and
available.


But doesn\'t source and sink an amp. The TCA0372 is a unique
part--it\'s like a four-quadrant LM317 with much lower dropout
voltage.

A 8 pins, 10 cent lm358 plus buffer (FET or darlington) is still
cheaper and smaller than the $1, 16 pins TCA0372.

Just a suggestion.
Click to expand...

Thanks.

Making it four-quadrant takes significantly more parts than that,
though, plus there\'s the class-AB bias current issue to worry about.

I could use an LM675 or OPA551 to make the floating ground and an LM337
upside down to make the floating \'negative\' supply, but that\'s more cost
and board space than a 48-cent TCA0372 dual.

Sure hope ON Semi doesn\'t stop making them anytime soon.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
 
On 2020-07-23 15:17, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 12:07:14 PM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs
wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but
total distributor stock is less than 1k pieces and the
quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V
rail, and my go-to floating ground generator is getting
scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new
delay generator. It makes programmable VH and VL for my GaN
totem pole.


Thanks! I ordered 100 from Digikey, which will hold me for
prototype quantities. I emailed the East Coast sales manager,
so we\'ll see.

Can you use alternative? For instance, lm358 is cheaper and
available.


But doesn\'t source and sink an amp. The TCA0372 is a unique
part--it\'s like a four-quadrant LM317 with much lower dropout
voltage.

A 8 pins, 10 cent lm358 plus buffer (FET or darlington) is still
cheaper and smaller than the $1, 16 pins TCA0372.

Just a suggestion.
Click to expand...

Thanks.

Making it four-quadrant takes significantly more parts than that,
though, plus there\'s the class-AB bias current issue to worry about.

I could use an LM675 or OPA551 to make the floating ground and an LM337
upside down to make the floating \'negative\' supply, but that\'s more cost
and board space than a 48-cent TCA0372 dual.

Sure hope ON Semi doesn\'t stop making them anytime soon.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
 
On Thu, 23 Jul 2020 12:17:21 -0700 (PDT), edward.ming.lee@gmail.com
wrote:

On Thursday, July 23, 2020 at 12:07:14 PM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.


Thanks! I ordered 100 from Digikey, which will hold me for prototype
quantities. I emailed the East Coast sales manager, so we\'ll see.

Can you use alternative? For instance, lm358 is cheaper and available.


But doesn\'t source and sink an amp. The TCA0372 is a unique part--it\'s
like a four-quadrant LM317 with much lower dropout voltage.

A 8 pins, 10 cent lm358 plus buffer (FET or darlington) is still cheaper and smaller than the $1, 16 pins TCA0372.

Just a suggestion.
Click to expand...

We\'re paying 44 cents for the dual. There\'s nothing like it. An opamp
with discrete buffers would be a lot of parts without the thermal
limit. Probably wouldn\'t swing as far either.
 
On Thu, 23 Jul 2020 12:17:21 -0700 (PDT), edward.ming.lee@gmail.com
wrote:

On Thursday, July 23, 2020 at 12:07:14 PM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.


Thanks! I ordered 100 from Digikey, which will hold me for prototype
quantities. I emailed the East Coast sales manager, so we\'ll see.

Can you use alternative? For instance, lm358 is cheaper and available.


But doesn\'t source and sink an amp. The TCA0372 is a unique part--it\'s
like a four-quadrant LM317 with much lower dropout voltage.

A 8 pins, 10 cent lm358 plus buffer (FET or darlington) is still cheaper and smaller than the $1, 16 pins TCA0372.

Just a suggestion.
Click to expand...

We\'re paying 44 cents for the dual. There\'s nothing like it. An opamp
with discrete buffers would be a lot of parts without the thermal
limit. Probably wouldn\'t swing as far either.
 
On Thu, 23 Jul 2020 12:17:21 -0700 (PDT), edward.ming.lee@gmail.com
wrote:

On Thursday, July 23, 2020 at 12:07:14 PM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.


Thanks! I ordered 100 from Digikey, which will hold me for prototype
quantities. I emailed the East Coast sales manager, so we\'ll see.

Can you use alternative? For instance, lm358 is cheaper and available.


But doesn\'t source and sink an amp. The TCA0372 is a unique part--it\'s
like a four-quadrant LM317 with much lower dropout voltage.

A 8 pins, 10 cent lm358 plus buffer (FET or darlington) is still cheaper and smaller than the $1, 16 pins TCA0372.

Just a suggestion.
Click to expand...

We\'re paying 44 cents for the dual. There\'s nothing like it. An opamp
with discrete buffers would be a lot of parts without the thermal
limit. Probably wouldn\'t swing as far either.
 
On 7/23/2020 3:07 PM, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total
distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce.   razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.


Thanks!  I ordered 100 from Digikey, which will hold me for prototype
quantities.  I emailed the East Coast sales manager, so we\'ll see.

Can you use alternative?  For instance, lm358 is cheaper and available.


But doesn\'t source and sink an amp.  The TCA0372 is a unique part--it\'s
like a four-quadrant LM317 with much lower dropout voltage.

Cheers

Ph
Click to expand...

The nearest immediate sub is the LA6500, bigger package, more
dissipation, worse slew rate and GBW etc.

<https://www.onsemi.com/pub/Collateral/LA6500-D.PDF>

20 watts dissipation with \"infinity heat sink\", which is my favorite kind.

Also, unrelated, I found these:

<https://datasheet.lcsc.com/szlcsc/1809281614_3PEAK-TPH2501-TR_C126713.pdf>

RRIO, 120 MHz, 180V/usec, 0.3p bias current, 6.5 nV/sqrtHz. About 40
cents in quantity for the single, could prolly find a use for those
 
On 7/23/2020 6:25 PM, bitrex wrote:
On 7/23/2020 3:07 PM, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total
distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2
months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce.
razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.


Thanks!  I ordered 100 from Digikey, which will hold me for prototype
quantities.  I emailed the East Coast sales manager, so we\'ll see.

Can you use alternative?  For instance, lm358 is cheaper and available.


But doesn\'t source and sink an amp.  The TCA0372 is a unique
part--it\'s like a four-quadrant LM317 with much lower dropout voltage.

Cheers

Ph


The nearest immediate sub is the LA6500, bigger package, more
dissipation, worse slew rate and GBW etc.

https://www.onsemi.com/pub/Collateral/LA6500-D.PDF

20 watts dissipation with \"infinity heat sink\", which is my favorite kind.

Also, unrelated, I found these:

https://datasheet.lcsc.com/szlcsc/1809281614_3PEAK-TPH2501-TR_C126713.pdf

RRIO, 120 MHz, 180V/usec, 0.3p bias current, 6.5 nV/sqrtHz. About 40
cents in quantity for the single, could prolly find a use for those
Click to expand...

also source 100mA min and 300mA typ, y\'know a quad is probably a bit
over a buck and in parallel would be nothin\' to sniff at.
 
On 7/23/2020 6:25 PM, bitrex wrote:
On 7/23/2020 3:07 PM, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total
distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2
months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce.
razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.


Thanks!  I ordered 100 from Digikey, which will hold me for prototype
quantities.  I emailed the East Coast sales manager, so we\'ll see.

Can you use alternative?  For instance, lm358 is cheaper and available.


But doesn\'t source and sink an amp.  The TCA0372 is a unique
part--it\'s like a four-quadrant LM317 with much lower dropout voltage.

Cheers

Ph


The nearest immediate sub is the LA6500, bigger package, more
dissipation, worse slew rate and GBW etc.

https://www.onsemi.com/pub/Collateral/LA6500-D.PDF

20 watts dissipation with \"infinity heat sink\", which is my favorite kind.

Also, unrelated, I found these:

https://datasheet.lcsc.com/szlcsc/1809281614_3PEAK-TPH2501-TR_C126713.pdf

RRIO, 120 MHz, 180V/usec, 0.3p bias current, 6.5 nV/sqrtHz. About 40
cents in quantity for the single, could prolly find a use for those
Click to expand...

also source 100mA min and 300mA typ, y\'know a quad is probably a bit
over a buck and in parallel would be nothin\' to sniff at.
 
On 7/23/2020 6:34 PM, bitrex wrote:
On 7/23/2020 6:25 PM, bitrex wrote:
On 7/23/2020 3:07 PM, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total
distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2
months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.


Thanks!  I ordered 100 from Digikey, which will hold me for prototype
quantities.  I emailed the East Coast sales manager, so we\'ll see.

Can you use alternative?  For instance, lm358 is cheaper and available.


But doesn\'t source and sink an amp.  The TCA0372 is a unique
part--it\'s like a four-quadrant LM317 with much lower dropout voltage.

Cheers

Ph


The nearest immediate sub is the LA6500, bigger package, more
dissipation, worse slew rate and GBW etc.

https://www.onsemi.com/pub/Collateral/LA6500-D.PDF

20 watts dissipation with \"infinity heat sink\", which is my favorite
kind.

Also, unrelated, I found these:

https://datasheet.lcsc.com/szlcsc/1809281614_3PEAK-TPH2501-TR_C126713.pdf


RRIO, 120 MHz, 180V/usec, 0.3p bias current, 6.5 nV/sqrtHz. About 40
cents in quantity for the single, could prolly find a use for those

also source 100mA min and 300mA typ, y\'know a quad is probably a bit
over a buck and in parallel would be nothin\' to sniff at.
Click to expand...

So long as 5.5 volts top end is cool.
 
On 7/23/2020 6:34 PM, bitrex wrote:
On 7/23/2020 6:25 PM, bitrex wrote:
On 7/23/2020 3:07 PM, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total
distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2
months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.


Thanks!  I ordered 100 from Digikey, which will hold me for prototype
quantities.  I emailed the East Coast sales manager, so we\'ll see.

Can you use alternative?  For instance, lm358 is cheaper and available.


But doesn\'t source and sink an amp.  The TCA0372 is a unique
part--it\'s like a four-quadrant LM317 with much lower dropout voltage.

Cheers

Ph


The nearest immediate sub is the LA6500, bigger package, more
dissipation, worse slew rate and GBW etc.

https://www.onsemi.com/pub/Collateral/LA6500-D.PDF

20 watts dissipation with \"infinity heat sink\", which is my favorite
kind.

Also, unrelated, I found these:

https://datasheet.lcsc.com/szlcsc/1809281614_3PEAK-TPH2501-TR_C126713.pdf


RRIO, 120 MHz, 180V/usec, 0.3p bias current, 6.5 nV/sqrtHz. About 40
cents in quantity for the single, could prolly find a use for those

also source 100mA min and 300mA typ, y\'know a quad is probably a bit
over a buck and in parallel would be nothin\' to sniff at.
Click to expand...

So long as 5.5 volts top end is cool.
 
On 7/23/2020 6:34 PM, bitrex wrote:
On 7/23/2020 6:25 PM, bitrex wrote:
On 7/23/2020 3:07 PM, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total
distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2
months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.


Thanks!  I ordered 100 from Digikey, which will hold me for prototype
quantities.  I emailed the East Coast sales manager, so we\'ll see.

Can you use alternative?  For instance, lm358 is cheaper and available.


But doesn\'t source and sink an amp.  The TCA0372 is a unique
part--it\'s like a four-quadrant LM317 with much lower dropout voltage.

Cheers

Ph


The nearest immediate sub is the LA6500, bigger package, more
dissipation, worse slew rate and GBW etc.

https://www.onsemi.com/pub/Collateral/LA6500-D.PDF

20 watts dissipation with \"infinity heat sink\", which is my favorite
kind.

Also, unrelated, I found these:

https://datasheet.lcsc.com/szlcsc/1809281614_3PEAK-TPH2501-TR_C126713.pdf


RRIO, 120 MHz, 180V/usec, 0.3p bias current, 6.5 nV/sqrtHz. About 40
cents in quantity for the single, could prolly find a use for those

also source 100mA min and 300mA typ, y\'know a quad is probably a bit
over a buck and in parallel would be nothin\' to sniff at.
Click to expand...

So long as 5.5 volts top end is cool.
 
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs
Click to expand...

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.
 
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs
Click to expand...

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.
 
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs
Click to expand...

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.
 
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.
Click to expand...

Thanks! I ordered 100 from Digikey, which will hold me for prototype
quantities. I emailed the East Coast sales manager, so we\'ll see.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
 
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.
Click to expand...

Thanks! I ordered 100 from Digikey, which will hold me for prototype
quantities. I emailed the East Coast sales manager, so we\'ll see.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
 
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.
Click to expand...

Thanks! I ordered 100 from Digikey, which will hold me for prototype
quantities. I emailed the East Coast sales manager, so we\'ll see.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
 
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!

Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!

Cheers

Phil Hobbs

We have 2100 in stock, so I can spare you a few.

I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.


Thanks! I ordered 100 from Digikey, which will hold me for prototype
quantities. I emailed the East Coast sales manager, so we\'ll see.
Click to expand...

Can you use alternative? For instance, lm358 is cheaper and available.
 
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