CS3302A

Hydrophone Low Noise, Programmable Gain Differential Amplifier

Delivering low noise, high performance, and a small footprint, the CS3302A seismic amplifier is designed for use with hydrophone sensors. This highly integrated, programmable gain differential amplifier is engineered for precise low frequency, high dynamic range measurements.

Based on Cirrus Logic’s patented Multipath™ amplifier architecture, this powerful amplifier provides unrivaled noise and drift performance. Low-power consumption combined with outstanding THD performance makes them ideal for today’s seismic applications.

The high input impedance of the CS3302A makes it well suited for use with hydrophone sensors, while still delivering outstanding noise and drift performance. With an extensive feature set and available in a 24-pin SSOP package, this amplifier provides an outstanding price/performance combination for seismic applications.

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Documentation

  • Signal bandwidth: DC to 2 kHz
  • Differential inputs, differential outputs
    • Multiplexed inputs: INA, INB, 800 Ω termination
  • Max signal amplitude: 5 Vp-p differential
  • High performance
    • Outstanding noise performance
      • 1 µVp-p between 0.1 Hz and 10 Hz
      • 8.5 nV/Hz from 200 Hz to 2 kHz
    • Low total harmonic distortion
      • -118 dB THD typical (0.000126%)
      • -112 dB THD maximum (0.000251%)
    • Low input bias: <1 pA
    • Low drift: 0.05 µV/°C max
  • Low-power consumption
    • Normal/PWDN: 5 mA, 10 µA
  • High integration
    • Pin-selectable gain: x1, x2, x4, x8, x16, x32, x64
  • Dual power supply configuration
    • VA+ = +2.5 V; VA- = -2.5 V; VD = +3.3 V
  • Available in a 24-pin SSOP package

Related Documents

Design Resources

Tools and Software

CS3302A - Related News Releases

October 27, 2003
New Products Ideal for Geophysical Applications Requiring Precise Measurements
Part Description Resolution (bits) Dynamic Range (dB) THD (dB) Power Consumption Per Channel (mW) Signal Range (V) Package
CS3302A Hydrophone Amplifier -118 25 5 Vp-p diff 24 SSOP
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