Other Parts Discussed in Thread: AMC3301,
Hello, team
Here is my application:
We use a TI AMC3301 to sense a highside bi-direction current, AMC3301’s differential ouput is
Va= 1.44V±50mV ( common mode output voltage= 1.4V while current=0A)
we want use a tI PGA308 to convert it to a Vcc(5Vtyp) based ratiometric output
Vo= (Vcc/5)(2.5V±40Va
( means Vo=2.5V±2000mV at Vcc=5V, common mode output voltage 1.44V -> 2.5V and signal span ±50mV -> ±2000mV by PGA308)
I want to set Font-end amp as Gain=8, Output Amp as Gain=6 and Fine Gain adjust = 0.8333, to set total signal Gain=40,
But I confused of how to arrange the common mode output voltage Va=1.44V to Vo= 2.5V
Thanks a lot