How to use this in criss-cross technique

Hi redddddd ,

Let me double check the article and get back to you on this. But on first look, I would say it is possible but we may need to consider the default programmable resistor block of MAX41400 when computing for VOUT. I would also need to confirm the internal resistor values with our designers.

Have you considered looking at our differential output in-amps? What are your design requirements? 

Regards,

Kristine

well ill check them out, the requirement is to amplify differential signals to an ADC. So that's why I was looking at the criss-cross technique. Im getting decent signal with AD8421, but wanna try Low-Power, Precision Instrumentation Amplifier with Programmable Gain, and hence was looking at this IA.

Also, I don't wanna use switches for Programmable gain for AD8421. Please suggest.

If you want to achieve a programmable-gain config with AD8421 or other in-amps with the same architecture, switches or precision resistor arrays are the way to go to get the best accuracy for your design.

For our PGIAs, you may want to check ADA4254/55 as this is a low power, fully differential PGIA. You may also want to check LTC6373, as this is closer to AD8421 spec/performance wise that falls under the PGIA and diff-out architecture too.

Best regards,

Kristine

If you want to achieve a programmable-gain config with AD8421 or other in-amps with the same architecture, switches or precision resistor arrays are the way to go to get the best accuracy for your design.

For our PGIAs, you may want to check ADA4254/55 as this is a low power, fully differential PGIA. You may also want to check LTC6373, as this is closer to AD8421 spec/performance wise that falls under the PGIA and diff-out architecture too.

Best regards,

Kristine

Thanks, Ill check them out and will reply. For now, I have added the switches on AD8421 and testing it, but will check the ones you mentioned as well.