CS5534-ASZ

Analog To Digital Converters (ADC) Overview

The CS5534-ASZ is a 24-bit, four-channel delta-sigma analog-to-digital converter (ADC) from Cirrus Logic. It integrates a chopper-stabilized programmable gain instrumentation amplifier (PGIA) with gains ranging from 1x to 64x and an input current of 1200 pA at higher gains. The device features a fourth-order modulator and digital filter supporting selectable output word rates up to 3840 Sps. It utilizes a three-wire serial interface compatible with SPI and Microwire standards. Power supply configurations include single +5 V or dual ±2.5 V/±3 V options, with digital logic operating between 3 V and 5 V.

Analog To Digital Converters (ADC) Feature Summary

• 24-bit resolution with noise-free performance up to 23 bits
• Four differential channels with integrated chopper-stabilized PGIA (1x–64x gain)
• Ultra-low input noise density of 12 nV/√Hz at 0.1 Hz for 64x gain
• Selectable output word rates from 6.25 to 3840 Sps with 50/60 Hz rejection

Analog To Digital Converters (ADC) Applications

• Weigh scale systems
• Process control instrumentation
• Scientific measurement equipment
• Medical devices requiring low-level signal acquisition

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'ASZ' against the manufacturer's latest ordering information to confirm package type and environmental compliance status. Check for end-of-life notifications or product change notices related to the CS553x family before finalizing procurement plans.

Analog To Digital Converters (ADC) Selection Notes

Select the CS5534-ASZ for applications requiring four independent differential inputs with high precision. Ensure the system clock frequency matches the required output word rate, typically 4.9152 MHz. Verify that the analog supply voltage range aligns with the chosen power configuration (single or dual supply).

Analog To Digital Converters (ADC) Part Context

The CS5534-ASZ belongs to the CS5531/32/33/34-AS family of ADCs. This series shares architectural similarities but differs in resolution and channel count. The CS5534 specifically provides 24-bit performance across four channels, distinguishing it from the two-channel CS5532 and the 16-bit variants CS5531 and CS5533.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate pin-compatible alternatives within the same family, such as the CS5532-ASZ, if fewer channels are acceptable.