Other Parts Discussed in Thread: THS4131, AMC1300, AMC1311, AMC1301
hi,
we are designing the amplier for the voltage measurement circuit. AMC1300 is used as isolation amplifier for voltage measurement. Its output is given to THS4131.
we are facing noise in the amplifier output and the noise signals are in the range of +/-12V. we are guessing that these noise are added into the circuit due to THS4131.
we are trying to add the low pass butterworth filter at the amplifier output as shown in the circtuit below.
Input voltage to AMC1300 : 75mV
Output voltage from AMC1300 : 615mV
R1 : 402 Ohm
R2 : 4020 Ohm
gain : 10
signal frequency : 15kHz
we ignored the filter components R3, C1,C2, R4 and C3. we are facing +/-10V noise signal in our output.
Please guide us to select the values for R3, C1, C2, R4 and C3.
Thanking you.
Thanks & regards,
Rajasekaran.