CS5503-BS

Analog To Digital Converters (ADC) Overview

The CS5503-BS is a monolithic CMOS analog-to-digital converter (ADC) designed for measuring low-frequency signals representing physical, chemical, and biological processes. It utilizes charge-balance techniques to achieve 20-bit performance with no missing codes. The device features an integrated 6-pole low-pass Gaussian filter and supports output word rates up to 4 kSps. Key electrical specifications include a linearity error of ±0.0003% and differential nonlinearity of ±1/8 LSB. The component operates within a flexible serial communication interface compatible with microcontrollers.

Analog To Digital Converters (ADC) Feature Summary

• 20-bit resolution with no missing codes using charge-balance techniques
• Integrated 6-pole low-pass Gaussian filter for anti-aliasing
• On-chip self-calibration circuitry ensuring high accuracy
• Flexible serial communications port with 3-state data and clock outputs

Analog To Digital Converters (ADC) Applications

• Measurement of physical process variables
• Chemical analysis systems
• Biological signal monitoring

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'BS' against current manufacturer documentation to confirm package type and temperature range. Confirm RoHS compliance status as historical data may vary by production batch. Check for end-of-life notifications or obsolescence warnings prior to procurement planning.

Analog To Digital Converters (ADC) Selection Notes

Select this component when 20-bit resolution and low-frequency measurement are required. Ensure the application benefits from the integrated Gaussian filter to simplify external circuitry. Verify that the microcontroller interface matches the supported formats, noting that UART format is exclusive to the CS5501 variant.

Analog To Digital Converters (ADC) Part Context

The CS5503-BS belongs to the Cirrus Logic CS550x family of non-aliasing A/D converters. This family includes the CS5501, which offers 16-bit resolution. Both devices share similar architectural features but differ in bit depth and specific communication protocol support, such as the UART option available only on the CS5501.

Analog To Digital Converters (ADC) Replacement Considerations

The CS5501 serves as a functional alternative if 16-bit resolution is sufficient. Consider the CS5530 for applications requiring higher 24-bit resolution and delta-sigma modulation architecture. Verify pin compatibility and software register mapping before substituting.