Tool/software:
dear sir
our customer want PGA308 with TDC1000 due to very pricision output control.
for test, customer 2MHz sensor signal input to TDC1000, unfortunately, PGA308 output can't get correct result.
if you have some good guide circuit diagram or recommend, please advice to me.
Hi Harry,
for test, customer 2MHz sensor signal input to TDC1000, unfortunately, PGA308 output can't get correct result.
PGA308 does have the bandwidth to measure 2MHz ultrasonic input signal. You have to change to higher BW of the instrumentation or difference amplifier.
You may have to change to PGA855, PGA849, and others, see the link below.
https://www.ti.com/amplifier-circuit/pga-vga/products.html#3229=PGA&
If you have additional questions, please let us know.
Best,
Raymond
