built in adc in fpga????

[shrinivas gotur]

hi guys,
i was wondering whether can i have built in adc in fpga with good (say 12 or 14 bit) resolution and 0-5v input range will be available in market. please revert back soon if u know any.i am waiting

 

[Thomas Stanka]

Am Freitag, 8. November 2013 12:25:23 UTC+1 schrieb shrinivas gotur:
> i was wondering whether can i have built in adc in fpga with good (say 12 or 14 bit) resolution and 0-5v input range will be available in market. please revert back soon if u know any.i am waiting

The only fpga with included ADC is microsemi fusion fpga. Guess it sells in too small numbers to see more devices of that kind in near future on market available.

 

[GaborSzakacs]

Thomas Stanka wrote:

Am Freitag, 8. November 2013 12:25:23 UTC+1 schrieb shrinivas gotur:
i was wondering whether can i have built in adc in fpga with good (say 12 or 14 bit) resolution and 0-5v input range will be available in market. please revert back soon if u know any.i am waiting

The only fpga with included ADC is microsemi fusion fpga. Guess it sells in too small numbers to see more devices of that kind in near future on market available.

Newer Xilinx devices (7-series) have built-in ADC's. You'd need to use
some external parts to handle your 5V input range. These parts are not
cheap, however. You'd probably do better with a cheap plain FPGA and
a separate ADC chip. Look at Artix-7 for the least expensive of the
lot.

--
Gabor

 

[Rob Gaddi]

On Fri, 8 Nov 2013 03:25:23 -0800 (PST)
shrinivas gotur <shri.gotur@gmail.com> wrote:

hi guys,
i was wondering whether can i have built in adc in fpga with good (say 12 or 14 bit) resolution and 0-5v input range will be available in market. please revert back soon if u know any.i am waiting

To what end? An external ADC allows you to trade off
speed/resolution/cost as necessary, and doesn't mean that your ADC is
trying to share a substrate with tiny CMOS gates switching at hundreds
of MHz. And for any moderate rate of throughput you can talk to it SPI
for a cost of a whopping 4 pins.

--
Rob Gaddi, Highland Technology -- www.highlandtechnology.com
Email address domain is currently out of order. See above to fix.

 

[rickman]

On 11/8/2013 6:25 AM, shrinivas gotur wrote:

hi guys,
i was wondering whether can i have built in adc in fpga with good (say 12 or 14 bit) resolution and 0-5v input range will be available in market. please revert back soon if u know any.i am waiting

You can build an ADC in an FPGA with decent performance. Look up
DeltaSigma converters. Many FPGAs have differential inputs which can be
used as an analog comparator. The rest is digital.

--

Rick

 

[shrinivas gotur]

On Friday, 8 November 2013 16:55:23 UTC+5:30, shrinivas gotur wrote:

hi guys,

i was wondering whether can i have built in adc in fpga with good (say 12 or 14 bit) resolution and 0-5v input range will be available in market. please revert back soon if u know any.i am waiting

thanks guys for your time.actually i wanted to interface A real time lvdt with fpga so i was thiking of built in adc.

 

On Friday, November 8, 2013 5:25:23 AM UTC-6, shrinivas gotur wrote:

hi guys,

i was wondering whether can i have built in adc in fpga with good (say 12 or 14 bit) resolution and 0-5v input range will be available in market. please revert back soon if u know any.i am waiting

You might find these of interest.
http://davidkessner.wordpress.com/?s=fpga