CS5530-ISZ

Analog To Digital Converters (ADC) Overview

The CS5530-ISZ is a 24-bit delta-sigma analog-to-digital converter (ADC) from Cirrus Logic, housed in a 20-SSOP package. It integrates an ultra-low-noise chopper-stabilized instrumentation amplifier with a fixed gain of 64X and a voltage noise density of 12 nV/√Hz at 0.1 Hz. The device supports selectable output word rates ranging from 6.25 to 3840 Sps and offers up to 19 bits of noise-free resolution. It features a three-wire serial interface compatible with SPI and Microwire protocols, onboard offset and gain calibration registers, and flexible power supply configurations for unipolar or bipolar operation.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 64X chopper-stabilized instrumentation amplifier with 12 nV/√Hz noise density
• 24-bit delta-sigma ADC architecture with linearity error of ±0.0015% FS
• Selectable output data rates from 6.25 to 3840 Sps with 50/60 Hz rejection
• Onboard offset and gain calibration registers for system accuracy

Analog To Digital Converters (ADC) Applications

• Weigh scale systems
• Process control instrumentation
• Scientific measurement equipment
• Medical devices requiring high precision

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ISZ suffix indicates the industrial temperature range variant (-40°C to +85°C). Check for RoHS compliance status and moisture sensitivity level (MSL 3) requirements during storage and handling. Ensure ordering documentation matches the exact part number CS5530-ISZ to avoid functional mismatches with other family members.

Analog To Digital Converters (ADC) Selection Notes

Select the CS5530-ISZ when high dynamic range and low drift are required for low-level signal acquisition. The fixed 64X internal amplifier gain suits applications where external amplification is undesirable. Verify that the microcontroller interface supports the required three-wire serial protocol. Consider the maximum input common-mode voltage constraints relative to the chosen analog supply configuration before finalizing the design.

Analog To Digital Converters (ADC) Part Context

The CS5530 belongs to Cirrus Logic's precision ADC family designed for high-resolution measurements. The ISZ suffix denotes the industrial temperature grade and SSOP packaging. This component is distinct from multi-channel variants like the CS5532 or lower-resolution models such as the CS5523. It serves as a specialized solution for single-ended differential inputs in metrology applications.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult Cirrus Logic for current alternative recommendations or pin-compatible upgrades within the same product family.