CS5523-ASZR

Analog To Digital Converters (ADC) Overview

The CS5523-ASZR is a four-channel, 16-bit delta-sigma analog-to-digital converter (ADC) manufactured by Cirrus Logic. It integrates a chopper-stabilized instrumentation amplifier with low input current and a programmable gain amplifier (PGA). The device supports bipolar and unipolar input spans ranging from 25 mV to 5 V. It features an internal fourth-order modulator and digital filter, providing selectable output word rates up to 401 Sps using a 130 kHz clock. The ADC operates on a single +5 V supply with a +3 V to +5 V digital interface and includes a charge pump drive for negative bias generation.

Analog To Digital Converters (ADC) Feature Summary

• Four differential inputs with integrated multiplexer and chopper-stabilized instrumentation amplifier
• Programmable gain amplifier supporting input spans of 25 mV, 55 mV, 100 mV, 1 V, 2.5 V, and 5 V
• Three-wire serial interface compatible with SPI and Microwire protocols
• Internal system and self-calibration capabilities with accessible calibration registers

Analog To Digital Converters (ADC) Applications

• Process control systems requiring high-precision signal measurement
• Data acquisition modules for industrial monitoring
• Applications involving isolated or non-isolated low-level signals

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix ASZR against the manufacturer's current documentation to confirm package type and tape-and-reel specifications. Check for any End-of-Life notifications or product change notices associated with the CS5523 series, as availability may be subject to manufacturing updates.

Analog To Digital Converters (ADC) Selection Notes

Select the CS5523-ASZR when four differential channels are required with 16-bit resolution. Ensure the application utilizes a master clock frequency within the 30 kHz to 130 kHz range for this specific model variant. Confirm that the external voltage reference falls within the +1 V to +5 V input range requirement.

Analog To Digital Converters (ADC) Part Context

The CS5523 is part of the CS5521/22/23/24/28 family of highly integrated delta-sigma ADCs. While the CS5521 and CS5522 offer two channels, and the CS5524 offers four channels with 24-bit resolution, the CS5523 specifically provides four channels with 16-bit performance. The CS5528 variant expands this to eight channels.

Analog To Digital Converters (ADC) Replacement Considerations

The CS5524 serves as a higher-resolution alternative within the same package offering four channels. For two-channel applications, the CS5521 provides equivalent 16-bit performance. Verify pin compatibility and register mapping before substituting these family members.