CS5509-AP

Analog To Digital Converters (ADC) Overview

The CS5509-AP is a single-supply, 16-bit analog-to-digital converter (ADC) from Cirrus Logic. It utilizes sigma-delta architecture to provide high-resolution data conversion with a maximum sampling rate of 200 samples per second. The device features a differential input configuration and communicates via a serial interface. Designed for industrial applications, it operates within a temperature range of -40°C to +85°C. Key performance metrics include a differential nonlinearity (DNL) of +/- 0.5 LSB and an integral nonlinearity (INL) of +/- 0.0125% FSR. The component requires an external reference voltage and dissipates approximately 2.25 mW of power.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with sigma-delta architecture
• Single-channel differential input
• Serial communication interface
• Low power consumption of 2.25 mW

Analog To Digital Converters (ADC) Applications

• Industrial process control systems
• Precision weighing scales
• Portable instrumentation

Analog To Digital Converters (ADC) Procurement Notes

The CS5509-AP is listed as obsolete or end-of-life by the manufacturer. Availability is restricted, and sourcing may require checking secondary distributors for remaining stock. Verification of the specific suffix 'AP' against official datasheets is recommended to confirm package type and temperature grade, as standard listings often show 'ASZR'.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-ended or differential low-speed, high-accuracy conversion is required. Ensure the system design accommodates an external voltage reference, as the CS5509 does not include an internal one. Verify that the serial interface timing meets the microcontroller's requirements at the selected data rate.

Analog To Digital Converters (ADC) Part Context

This part belongs to the CS5509 series of precision ADCs. Other variants in the family, such as the CS5509-ASZR, share similar electrical characteristics but may differ in packaging (SOIC-16 vs. TSSOP) or shipping format. The 'AP' suffix typically denotes a specific package and temperature range combination defined by Cirrus Logic.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements are limited due to the obsolete status. Consider the CS5509-ASZR if the package difference is acceptable. For modern alternatives, evaluate other 16-bit sigma-delta ADCs from Cirrus Logic or competitors like Analog Devices, ensuring pin compatibility and interface matching.