CS5532-BSZ

Analog To Digital Converters (ADC) Overview

The CS5532-BSZ is a highly integrated 24-bit delta-sigma analog-to-digital converter (ADC) from Cirrus Logic, designed for precision measurement of low-level unipolar or bipolar signals. It features a chopper-stabilized programmable gain instrumentation amplifier (PGIA) with selectable gains from 1x to 64x and ultra-low noise performance of 6 nV/√Hz at 0.1 Hz. The device includes a four-channel differential multiplexer, scalable input span via calibration, and a simple three-wire serial interface compatible with SPI and Microwire standards. Operating within a temperature range of -40°C to +85°C, it supports output word rates up to 3,840 Sps and is optimized for applications such as weigh scales, process control, scientific instruments, and medical devices.

Analog To Digital Converters (ADC) Feature Summary

• Chopper-stabilized PGIA with gains from 1x to 64x and 6 nV/√Hz noise density at 0.1 Hz
• 24-bit resolution with linearity error of ±0.0007% FS and up to 23 bits noise-free resolution
• Four-channel differential multiplexer with scalable input span from ±5 mV to ±2.5 V
• Three-wire serial interface compatible with SPI and Microwire, featuring Schmitt trigger on SCLK

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notifications, as the CS5532-BSZ may be subject to obsolescence. Ensure proper handling procedures are followed due to moisture sensitivity classification. Review current availability and lead times with suppliers prior to procurement planning.

Analog To Digital Converters (ADC) Selection Notes

Select the CS5532-BSZ for applications requiring high precision and low noise in multi-channel signal acquisition. Consider the available gain settings and output word rates when designing the system filter and communication interface. Ensure power supply configurations match the required analog and digital voltage levels. Verify that the three-wire serial interface compatibility aligns with the host microcontroller's capabilities.

Analog To Digital Converters (ADC) Part Context

The CS5532-BSZ belongs to the CS553x series of delta-sigma ADCs from Cirrus Logic, which also includes the CS5531, CS5533, and CS5534 variants. These devices share similar architectural features but differ in channel count and resolution. The CS5532 specifically offers two channels, while the CS5534 provides four channels, both maintaining 24-bit performance. This family is widely used in industrial and scientific applications demanding high accuracy and stability.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same family include the CS5534-BSZ for four-channel applications. Other Cirrus Logic ADCs with similar specifications should be evaluated based on pin compatibility, register structure, and performance parameters. Cross-referencing datasheets is essential to ensure functional equivalence in terms of noise, linearity, and interface requirements.