1. Skip to navigation
  2. Skip to content
  3. Skip to sidebar

Low Noise Fully Differential Buffer/Amplifier

Low Noise Fully Differential Buffer/Amplifier

Useful in RFID baseband signal processing is a differential amplifier with an input impedance set to match the differential output impedance of a RF demodulator. The differential input impedance is 2*Rin and the gain is Rg/Rin. Capacitors Cf and Cin can be used to set the bandwidth of the amplifier. For DC biasing the common mode voltage gain is one (Vocm = Vicm) and is independent of resistor matching.