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CMOS Amplifier for optoelectronic receivers

  • US 6,771,131 B2
  • Filed: 05/09/2002
  • Issued: 08/03/2004
  • Est. Priority Date: 05/09/2002
  • Status: Expired due to Fees
First Claim
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1. An amplifier comprising an input port to receive a current signal, the amplifier comprising:

  • a first transimpedance amplifier to provide an output voltage indicative of the received current signal;

    a second transimpedance amplifier to provide a reference voltage; and

    a first differential amplifier latch to provide during an evaluation phase an output logic voltage indicative of whether the output voltage of the first transimpedance amplifier is greater or lesser than the reference voltage;

    wherein the first and second transimpedance amplifiers are in close proximity to each other so that power supply noise is a common mode signal in the reference voltage and in the output voltage of the first transimpedance amplifier.

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