CS5506-BSZR

Analog To Digital Converters (ADC) Overview

The CS5506-BSZR is a 20-bit analog-to-digital converter from the Cirrus Logic CS5505/6/7/8 family. It features four pseudo-differential analog input channels and utilizes delta-sigma modulation with an on-chip digital filter. The device supports output update rates up to 100 Sps, typically operating at 20 Sps with a 32.768 kHz clock for superior line rejection. Power consumption is very low, dissipating 1.7 mW on a single +5 V supply or 3.2 mW on dual ±5 V supplies. It includes internal self-calibration circuitry and accepts either unipolar or bipolar input ranges via pin selection.

Analog To Digital Converters (ADC) Feature Summary

• 20-bit resolution with linearity error of ±0.0007% FS
• Four-channel pseudo-differential analog inputs
• Very low power: 1.7 mW (single supply) / 3.2 mW (dual supply)
• On-chip self-calibration and digital filter optimized for 50/60 Hz rejection

Analog To Digital Converters (ADC) Applications

• Measurement of low-frequency physical, chemical, and biological signals
• Industrial process control systems requiring high precision
• Weigh scales and load cell interfaces
• Bridge sensor measurements

Analog To Digital Converters (ADC) Procurement Notes

Verify component status as the CS5506-BSZR may be discontinued. Confirm availability through authorized distributors or secondary markets. Ensure the ordering suffix matches the required temperature range and package specifications. Cross-reference with current manufacturer documentation for any lifecycle changes.

Analog To Digital Converters (ADC) Selection Notes

Select the CS5506-BSZR for applications requiring 20-bit resolution and multiple differential inputs. Choose this model over the CS5508 if four input channels are necessary. Ensure the system design accommodates the required analog supply voltages (+/- 5V or single +5V) and provides a stable reference voltage between 1.0 V and 3.6 V.

Analog To Digital Converters (ADC) Part Context

The CS5506-BSZR belongs to the CS5505/6/7/8 series of very low power CMOS A/D converters. This family distinguishes itself by integrating a delta-sigma modulator, voltage reference, calibration microcontroller, and serial interface into a single monolithic chip. The CS5506 specifically offers four channels, whereas the CS5508 offers a single channel, both sharing the same 20-bit architecture.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.