CS5511-ASZ

Analog To Digital Converters (ADC) Overview

The CS5511-ASZ is a 16-bit delta-sigma analog-to-digital converter (ADC) from Cirrus Logic, housed in an 8-pin SOIC package. It features an on-chip oscillator operating at 64 kHz, eliminating the need for external clock sources. The device provides up to 17 bits of noise-free resolution with a linearity error of ±0.0015% FS. It supports differential bipolar analog inputs and accepts reference voltages between 250 mV and 5 V. Power consumption is 2.5 mW in normal mode and 10 μW in sleep mode. The output word rate is typically 107 Sps, derived from the internal oscillator divided by 612.

Analog To Digital Converters (ADC) Feature Summary

• Integrated on-chip oscillator eliminates external clock requirements
• 16-bit resolution with up to 17 bits noise-free performance
• Low power consumption: 2.5 mW normal, 10 μW sleep
• Differential bipolar analog inputs with ±(0.80 ± 0.08) × VREF span

Analog To Digital Converters (ADC) Applications

• Weigh scale systems
• Process control instrumentation
• Industrial measurement applications

Analog To Digital Converters (ADC) Procurement Notes

Verify the ASZ suffix indicates lead-free packaging options as specified in the ordering information section. Confirm the specific temperature range and supply voltage configurations required for the application against the absolute maximum ratings and analog characteristics tables.

Analog To Digital Converters (ADC) Selection Notes

Select the CS5511 variant when an internal clock source is preferred over an external master clock. Ensure the system can accommodate the variable output word rate (53 to 159 Sps) due to oscillator drift. Verify that the serial interface timing meets the microcontroller or host controller capabilities for reading the 24-bit data word.

Analog To Digital Converters (ADC) Part Context

The CS5511 is part of the CS5510/11/12/13 family of low-cost, easy-to-use ΔΣ ADCs. While the CS5510 and CS5512 require external clocks, the CS5511 and CS5513 integrate an on-chip oscillator. The CS5511 specifically offers 16-bit performance, whereas the CS5512/13 provide 20-bit performance. All variants share similar pinouts and digital filter structures.

Analog To Digital Converters (ADC) Replacement Considerations

The CS5510 serves as a direct functional replacement if an external clock source is available and desired. For higher resolution needs, the CS5513 provides 20-bit performance with the same integrated oscillator architecture. Ensure compatibility with the 8-pin SOIC package and serial interface protocols.