I am looking for the optimal low-noise driver of differential ADC fed by current output single-ended bipolar sensor. For impedance matching and eliminating parasitic currents the single ended to differential amplifier seems to be the ideal solution:
Is such a differential amplifier applicable for current input source? How does it behave? I expect something like that (Vout- - Vocm) = R4 * Iin+. But in such case the Vocm should be grounded at the sensor ground pin so that there is no dependence of Vod on Vocm.
Hello David,We are currently determining the best way to support your question. We will either get back with you shortly or move your post to a more appropriate forum.
Regards,
Pete Semig
Precision Analog Applications
Hello David,
We believe this post will be best served by our high-speed amplifier team for they have differential output devices. I will move it to their forum.
Any hint?