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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%$&@!!
Cheers
Phil Hobbs
We have 2100 in stock, so I can spare you a few.
I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.
Thanks! I ordered 100 from Digikey, which will hold me for prototype
quantities. I emailed the East Coast sales manager, so we\'ll see.
Cheers
Phil Hobbs
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!
Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!
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.
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%$&@!!
Cheers
Phil Hobbs
We have 2100 in stock, so I can spare you a few.
I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.
Thanks! I ordered 100 from Digikey, which will hold me for prototype
quantities. I emailed the East Coast sales manager, so we\'ll see.
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!
Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!
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.
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%$&@!!
Cheers
Phil Hobbs
We have 2100 in stock, so I can spare you a few.
I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.
Thanks! I ordered 100 from Digikey, which will hold me for prototype
quantities. I emailed the East Coast sales manager, so we\'ll see.
Can you use alternative? For instance, lm358 is cheaper and available.
On Thu, 23 Jul 2020 14:35:04 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!
Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!
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.
Cheers
Phil Hobbs
Incidentally, it seems to be c-load stable with a 56u polymer. I\'m
adding a 1 ohm series resistor, out of excess caution.
On Thu, 23 Jul 2020 14:35:04 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> 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%$&@!!
Cheers
Phil Hobbs
We have 2100 in stock, so I can spare you a few.
I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.
Thanks! I ordered 100 from Digikey, which will hold me for prototype
quantities. I emailed the East Coast sales manager, so we\'ll see.
Cheers
Phil Hobbs
Incidentally, it seems to be c-load stable with a 56u polymer. I\'m
adding a 1 ohm series resistor, out of excess caution.
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!
Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!
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.
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%$&@!!
Cheers
Phil Hobbs
We have 2100 in stock, so I can spare you a few.
I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.
Thanks! I ordered 100 from Digikey, which will hold me for prototype
quantities. I emailed the East Coast sales manager, so we\'ll see.
Can you use alternative? For instance, lm358 is cheaper and available.
But doesn\'t source and sink an amp. The TCA0372 is a unique part--it\'s
like a four-quadrant LM317 with much lower dropout voltage.
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!
Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!
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.
On 2020-07-23 14:58, John Larkin wrote:
On Thu, 23 Jul 2020 14:35:04 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> 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%$&@!!
Cheers
Phil Hobbs
We have 2100 in stock, so I can spare you a few.
I\'d hate for this to go EOL. I just designed it into our new delay
generator. It makes programmable VH and VL for my GaN totem pole.
Thanks! I ordered 100 from Digikey, which will hold me for prototype
quantities. I emailed the East Coast sales manager, so we\'ll see.
Cheers
Phil Hobbs
Incidentally, it seems to be c-load stable with a 56u polymer. I\'m
adding a 1 ohm series resistor, out of excess caution.
That\'s what I usually do. You might want to scope the supply pins to
see if it\'s got a low amplitude, high current oscillation without the
resistor.
Cheers
Phil Hobbs
On 2020-07-23 14:58, John Larkin wrote:
On Thu, 23 Jul 2020 14:35:04 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!
Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!
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.
Cheers
Phil Hobbs
Incidentally, it seems to be c-load stable with a 56u polymer. I\'m
adding a 1 ohm series resistor, out of excess caution.
That\'s what I usually do. You might want to scope the supply pins to
see if it\'s got a low amplitude, high current oscillation without the
resistor.
Cheers
Phil Hobbs
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 $1, 16 pins TCA0372.
Just a suggestion.
On Thursday, July 23, 2020 at 12:07:14 PM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs
wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
ON still lists the TCA0372 power op amp as active, but
total distributor stock is less than 1k pieces and the
quoted lead time is 6-1/2 months!
Here I\'m trying to hang a couple of ADA4817s off a 20-V
rail, and my go-to floating ground generator is getting
scarce. razzafrazza%$&@!!
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 $1, 16 pins TCA0372.
Just a suggestion.
I was going to suggest the lm675, but on octoparts theOn 2020-07-23 15:17, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 12:07:14 PM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs
wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
ON still lists the TCA0372 power op amp as active, but
total distributor stock is less than 1k pieces and the
quoted lead time is 6-1/2 months!
Here I\'m trying to hang a couple of ADA4817s off a 20-V
rail, and my go-to floating ground generator is getting
scarce. razzafrazza%$&@!!
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 $1, 16 pins TCA0372.
Just a suggestion.
Thanks.
Making it four-quadrant takes significantly more parts than that,
though, plus there\'s the class-AB bias current issue to worry about.
I could use an LM675 or OPA551 to make the floating ground and an LM337
upside down to make the floating \'negative\' supply, but that\'s more cost
and board space than a 48-cent TCA0372 dual.
Sure hope ON Semi doesn\'t stop making them anytime soon.
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510
http://electrooptical.net
http://hobbs-eo.com
I was going to suggest the lm675, but on octoparts theOn 2020-07-23 15:17, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 12:07:14 PM UTC-7, Phil Hobbs wrote:
On 2020-07-23 14:47, edward.ming.lee@gmail.com wrote:
On Thursday, July 23, 2020 at 11:35:15 AM UTC-7, Phil Hobbs
wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
ON still lists the TCA0372 power op amp as active, but
total distributor stock is less than 1k pieces and the
quoted lead time is 6-1/2 months!
Here I\'m trying to hang a couple of ADA4817s off a 20-V
rail, and my go-to floating ground generator is getting
scarce. razzafrazza%$&@!!
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 $1, 16 pins TCA0372.
Just a suggestion.
Thanks.
Making it four-quadrant takes significantly more parts than that,
though, plus there\'s the class-AB bias current issue to worry about.
I could use an LM675 or OPA551 to make the floating ground and an LM337
upside down to make the floating \'negative\' supply, but that\'s more cost
and board space than a 48-cent TCA0372 dual.
Sure hope ON Semi doesn\'t stop making them anytime soon.
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510
http://electrooptical.net
http://hobbs-eo.com
ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!
Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!
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%$&@!!
On 2020-07-23 14:58, John Larkin wrote:
On Thu, 23 Jul 2020 14:35:04 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
On 2020-07-23 14:31, John Larkin wrote:
On Thu, 23 Jul 2020 14:15:19 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
ON still lists the TCA0372 power op amp as active, but total distributor
stock is less than 1k pieces and the quoted lead time is 6-1/2 months!
Here I\'m trying to hang a couple of ADA4817s off a 20-V rail, and my
go-to floating ground generator is getting scarce. razzafrazza%$&@!!
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.
Cheers
Phil Hobbs
Incidentally, it seems to be c-load stable with a 56u polymer. I\'m
adding a 1 ohm series resistor, out of excess caution.
That\'s what I usually do. You might want to scope the supply pins to
see if it\'s got a low amplitude, high current oscillation without the
resistor.
Cheers
Phil Hobbs
torsdag den 23. juli 2020 kl. 20.15.24 UTC+2 skrev Phil Hobbs:
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%$&@!!
for 20V wouldn\'t this be an alternative?
https://www.st.com/resource/en/datasheet/l2720w.pdf