Other Parts Discussed in Thread: THS4531, , THS4524, THS4541
Hello,
I have a circuit which delivers 20uA p2p sine wave current output in Audio Frequency (<40kHz). I want to convert it to voltage so as to measure it's spectral parameters.
I think THS4531 (THS4531A?) is suitable for this application as it has very low input bias current and input offset current.
However, I will need a larger feedback resistor (~10k) compared to the recommended value i.e. 2k ohms. I understand this will lead to stability issues. For this I plan to use a feedback capacitor in parallel with this feedback resistor.
I see that THS4541 and THS4524 are the FDAs whose datasheet mentions "Differential Transimpedence for DAC output" . However they have relatively large Input Bias current (my peak input current will be +/-10uA). Hence I thought THS4531 should be a better candidate for my application.
My doubt is: I don't see "Differential Transimpedance Amplifier" as one of the target applications for THS4531. Is there anything I am missing which makes this FDA a less desirable candidate for Differential Transimpedance Amplifier.
regards,
Ashish
