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Can I use the current output of Current Sourcing DACs for bio-impedance measurement ?

Hi,

Can I use the current output of current sourcing DACs, like AD9707, AD9744 or AD9777, for high frequency (1MHz) bio-impedance measurement ?

We often used I-V conversion circuit after DAC to convert the output to buffered voltages, and then design a VCCS (for example, howland circuit) for current output. So, I wonder if the current output of DAC (after anti-aliasing filtering) can be used directly as a current source for bio-impedance measurement.

Thanks!