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Non-inverting amp output saturation problem

Paul Bearpark
Prodigy 10 points
Other Parts Discussed in Thread: TLV2252

I'm using a TLV2252 for amplification of the signal generated by a piezoelectric transducer. It's a simple non-inverting circuit. The gain is 1200. I have been using the circuit successfully but recently received a new batch of op-amps which appear to fail to recover after the output has saturated at the negative supply rail.

Is anyone aware of problems with this or any other op-amp failing to come out of saturation?

Paul

  • 0
    TI__Prodigy 690 points

    Hi Paul,

    Sorry for the late reply.

    I wonder how long does it take to recover from negative rail.

    It would be appreciated if you could provide us schematic with operating condition.

    Other than schematic, following information is helpful. 

    • Power supply (voltage, single or dual)
    • Input signal (bias, amplitude, frequency)
    • Resistor for gain (size)
    • Output load (capatcitance, resistor)
    • Oscilloscope picture (Input signal, output signal)

    It will allow me to understand the phenomena.

    Best regards,

    Ichiro Itoi