Description
The CS5371A and CS5372A are one- and two-channel, high-dynamic-range, fourth-order ∆Σ modulators intended for geophysical and sonar applications. When combined with CS3301A / CS3302A differential amplifiers, the CS4373A test DAC and CS5376A digital filter, a small, low-power, self-testing, high-accuracy, multichannel measurement system results.

FEATUREs
❐ Fourth-order ∆Σ Architecture
❐ Clock-jitter-tolerant Architecture
❐ Input Voltage: 5 Vpp Fully Differential
❐ Input Signal Bandwidth: DC to 2 kHz
❐ High Dynamic Range
    • 127 dB SNR @ 215 Hz BW (2 ms sampling)
    • 124 dB SNR @ 430 Hz BW (1 ms sampling)
❐ Low Total Harmonic Distortion
    • -118 dB THD typical (0.000126%)
    • -112 dB THD maximum (0.000251%)
❐ Low Power Consumption
    • Normal operation: 25 mW per channel
    • Power down: 10 µW per channel
❐ Small Footprint, 24-pin SSOP package
❐ Multi-channel System Support
    • 1-channel System: CS5371A
    • 2-channel System: CS5372A
    • 3-channel System: CS5371A + CS5372A
    • 4-channel System: CS5372A + CS5372A
❐ Bipolar Power Supply Configuration
    • VA+ = +2.5 V; VA- = -2.5 V; VD = +3.3 V