THS4551: THS4551

hey prabhu, what are you trying to do? That 0.1uF feedback is going to cause problems. You know you do not need a DC bias to convert a bipolar input to a differential output on single supply - the magic of that FDA CM loop Also if you are single supply do not ground the Vocm pin, just let if defalut to midsupply maybe? 

Hi Michael,
Thank you for your response, In my design , i have to measure current 0-2A at Low side , supply voltage is 24VDC using, Can you suggest differential input and differential output op-amp non-isolated must have high CMRR, please check below image for your reference. or Can I use THS4551 ?

Normally, you would use an INA if it is fast enough

Hi Sima,
Thank you for your suggestions,
I will simulate and update you.

Hi Michael & sima,

Can you please recommend a alternate part for the part "INA851" with 5V single supply voltage.

Hello Nandhini,

   I recommend starting a new thread which will be redirected to the correct team to give you better suggestions on alternatives for our instrumentation amplifiers. 

   From the team, for this original question, the INA213 was recommend for 5V single supply version. However, this suggestion could change depending on your other design requirements.

Thank you,
Sima 

Hi sima, thank you for your response ,

Actually i need the fully differential output amplifier with single supply .the amplifier needs to sense 0- 2A load current at RShunt current sensing low side with 24VDC supply ,please suggest a part.

Hello Nandhini,

  For a DC source, I recommend as above using a dedicated current sense amplifier (INA213) and following this with a fully differential amplifier such as the THS4551 or the THS4561. I believe this design was recommended in your previous e2e thread linked here.  

Thank you,

Sima