CS5374-CNZ

Special Purpose Amplifiers Overview

The CS5374-CNZ is a dual-channel analog front-end integrating high-impedance differential amplifiers and fourth-order delta-sigma modulators. It features selectable gains from 1x to 64x, ultra-low input bias current under 1 pA, and 126 dB SNR at 215 Hz bandwidth. Operating on ±2.5 V analog and +3.3 V digital supplies, it consumes 6.5 mA per channel in normal mode. The device outputs serial bit streams for digital filtering.

Special Purpose Amplifiers Feature Summary

• Integrates two independent measurement channels with programmable gain differential amplifiers and fourth-order delta-sigma modulators within a single package.
• Provides ultra-low input bias current and excellent noise performance suitable for sensitive sensor interfaces.
• Features configurable input multiplexing and binary-weighted gain settings accessible via standard SPI interface.
• Converts differential analog signals into oversampled serial bit streams optimized for decimation by external digital filters.

Special Purpose Amplifiers Applications

• Marine seismic data acquisition systems
• Hydrophone sensor signal conditioning
• High-precision low-frequency analog measurement

Special Purpose Amplifiers Procurement Notes

Verify the specific suffix CNZ against official documentation to confirm the operating temperature range and packaging details. Ensure supply voltages match the specified bipolar analog and unipolar digital requirements. Confirm compatibility with the intended digital filter architecture before procurement.

Special Purpose Amplifiers Selection Notes

Select this component when designing systems requiring simultaneous dual-channel acquisition with high dynamic range. It is appropriate for applications demanding low noise and high common-mode rejection without relying on post-processing software correction. Consider the required gain accuracy and offset calibration capabilities during system design.

Special Purpose Amplifiers Part Context

Cirrus Logic manufactures specialized audio and industrial signal processing integrated circuits. The CS5374 belongs to a family of precision analog front-ends designed for high-fidelity signal conversion. These components are engineered to minimize external component count while maximizing signal integrity in demanding environments.

Special Purpose Amplifiers Replacement Considerations

Consult official substitution lists for verified alternatives. Do not assume functional equivalence with other models based solely on pin compatibility or general specifications.

Special Purpose Amplifiers FAQ

What is the maximum differential input signal amplitude?

The maximum signal amplitude is 5 Vpp differential.

How is the input multiplexer configured?

The input multiplexer and gain settings are controlled via registers accessed through a standard SPI port.

What is the typical power consumption per channel?

The typical power consumption is 6.5 mA per channel in normal operation mode.