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Opamp selection

Hi,

I am interested in an opamp with the following specs and I was wondering if anyone can help me with finding it here.

  • Dual supply operation (+/-3V)
  • Ultra low supply current (less than 100uA)
  • Low offset voltage
  • 4 circuits
  • Minimum slew rate: 2V/us
  • Comes in 16-LFCSP packaging

I am interested in using this opamp to build a current source which will supply a current up to +/-100uA across a maximum load resistance of 50kohm.

Thank you very much.

Parents
  • Picture a block with a gain of +1 and the block has the capability of 100V/us slew rate.

    If I put a very slow waveform in, say 1V/second, I will never see 100V/us at the output.

    You need to put a step function INTO your circuit.

    Have you simulated the circuit?

    Harry

Reply
  • Picture a block with a gain of +1 and the block has the capability of 100V/us slew rate.

    If I put a very slow waveform in, say 1V/second, I will never see 100V/us at the output.

    You need to put a step function INTO your circuit.

    Have you simulated the circuit?

    Harry

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