CS5371A-ISZR

ADCs/DACs - Special Purpose Overview

The CS5371A-ISZR is a single-channel, fourth-order delta-sigma modulator from Cirrus Logic, designed for high-dynamic-range geophysical and sonar applications. It operates within an industrial temperature range of -40°C to +85°C and utilizes a 24-pin SSOP package. The device converts differential analog input signals into a 512 kbits/s oversampled serial bit stream. Key electrical specifications include a typical Signal-to-Noise Ratio (SNR) of 127 dB at a 215 Hz bandwidth and a Total Harmonic Distortion (THD) of -118 dB. Power consumption is 25 mW per channel in normal operation, reducing to 10 µW in power-down mode.

ADCs/DACs - Special Purpose Feature Summary

• Fourth-order delta-sigma architecture with clock-jitter tolerance
• High dynamic range: 127 dB SNR @ 215 Hz bandwidth
• Low total harmonic distortion: -118 dB typical
• Low power consumption: 25 mW/channel (normal), 10 µW/channel (power down)

ADCs/DACs - Special Purpose Applications

• Geophysical measurement systems
• Sonar signal processing
• Multi-channel distributed sensor networks

ADCs/DACs - Special Purpose Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm the ISZR suffix corresponds to the industrial temperature grade (-40°C to +85°C) and SSOP packaging. Check for end-of-life status or obsolescence notices prior to procurement planning.

ADCs/DACs - Special Purpose Selection Notes

Select the CS5371A-ISZR for single-channel applications requiring high-resolution DC to 2 kHz signal conversion. For two-channel systems, consider the CS5372A variant. Ensure compatibility with the companion CS5376A digital filter for decimation to 24-bit output. Verify that the bipolar power supply configuration (+/- 2.5 V analog, +3.3 V digital) matches the system design.

ADCs/DACs - Special Purpose Part Context

The CS5371A is part of the CS537xA family of low-power, high-performance delta-sigma modulators. It is specifically engineered to work in conjunction with CS3301A/CS3302A differential amplifiers and the CS5376A digital filter to form complete measurement solutions. This integration allows for small footprint designs with self-testing capabilities via the CS4373A test DAC.

ADCs/DACs - Special Purpose Replacement Considerations

The CS5371A-ISZ is the non-reel version of this component. For multi-channel requirements, the CS5372A-ISZR serves as the two-channel equivalent. No direct pin-compatible replacements are documented in the provided source material.