Single-supply diff-in to diff-out alternating current (AC) amplifier circuit



This circuit uses two op amps to build a discrete, single-supply diff-in diff-out amplifier. The circuit converts a differential signal to a differential output signal.
  • Differential input Vi: Vi = -500 mV to 500 mV
  • Differential output: Vo = -2.5 V to 2.5 V
  • Supply:
    • Vcc = 5 V
    • Vee = 0 V
    • Vref = 2.5 V
  • Lower cutoff frequency = 16 Hz
  • Upper cutoff frequency > 1 MHz
General-purpose op amps
OPA374 Single, 5.5-V, 6.5-MHz, RRIO operational amplifier TLV9061 Single, 5.5-V, 10-MHz, RRIO operational amplifier for cost-optimized applications
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Type Title Date
* Circuit design Single-supply diff-in to diff-out AC amplifier circuit 30 Dec 2017
Application note Single-Supply Op Amp Design Techniques (Rev. A) 14 Mar 2001

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