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CS3301A Key Features

  • Multiplexed inputs: INA, INB, 800Ω termination
  • Rough / fine outputs for CS5371A / 72A / 73A
  • Max signal amplitude: 5 Vpp differential
  • Low input bias: 1 nA typical
  • 8.5 nV/ Hz from 0.1 Hz to 2 kHz
  • 0.180 µVp-p between 0.1 Hz and 10 Hz
  • 121 dB THD typical (0.0000891%)
  • 112 dB THD maximum (0.0002512%)
  • Normal operation: 5.5 mA typical
  • Power down: 10 µA typical

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CS3301A Description

The CS3301A is a low-noise differential input, differential output amplifier with programmable gain, optimized for amplifying signals from low-impedance sensors such as geophones. The gain settings are binary weighted (x1, x2, x4, x8, x16, x32, x64) and are selected using simple pin settings. Two sets of external inputs, INA and INB, simplify system design as inputs from a sensor and test DAC.