This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

OPA836: OPA836 (INPUT SIGNAL 0 TO 2 V, VREF 2.5 V)CIRCUIT WITH GAIN 2 FOR DRIVING ADC THS 1206 HAVING ANOLIG INPUT RANGE 1.5 TO 3.5V

Part Number: OPA836
Other Parts Discussed in Thread: THS1206,

Hello Forum,

 I am trying to use opa 836 as simple non inverting amplifier but unfortunately im facing some troubles in measurement with amplifier...

Input range : 100 micro volt to 2 volt

output range 1.5 to 3.5 volt to drive ADC THS1206

Vref available with  on ADC board is 2.5 volt .

kindly find attached files  of circuit diagram.

I have tried with the circuit given in data sheet fig 72 it's working fine for frequency range 1kHz to 1MHz but as I increase signal amplitude from 1 to 2vpp it's clamp the maximum level of output and shows 1.65 vpp so I have observed  around 350mv  loss in signal. As  the gain is  2 it should show double  the applied signal. I have also checked it with out applying Vref it's shows the same result that is clamping in signal.

please help me to tune the amplifier for mentioned CIRCUIT i/o RANGE.