AD977CR

Analog To Digital Converters (ADC) Overview

The AD977CR is a monolithic 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It features a single-ended input configuration and operates with both analog and digital power supplies at 5 V. The device supports a sampling rate of 100 kS/s and utilizes a serial interface for data communication. Key performance metrics include a signal-to-noise ratio of 85 dB, differential nonlinearity of ±2 LSB, and integral nonlinearity of ±3 LSB. It functions within an industrial temperature range of -40°C to +85°C and is housed in a 20-lead SOIC package.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a high-speed 16-bit SAR ADC core with internal reference options
• Supports serial data interface compatible with standard microprocessor buses
• Provides low power consumption suitable for battery-operated systems

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-resolution sensing
• Portable instrumentation and test equipment
• Data acquisition modules for environmental monitoring

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified third-party suppliers. Request original manufacturer documentation and traceability records to confirm the part number matches the specific suffix requirements. Inspect packaging integrity and pin condition upon receipt to ensure compliance with moisture sensitivity levels and handling standards.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution and 100 kS/s throughput are required in a single-channel configuration. Ensure the design accommodates the 5 V supply voltage and SOIC-20 footprint. Compare against alternatives if higher sampling rates or differential inputs are necessary, as this model is optimized for moderate-speed, high-accuracy applications.

Analog To Digital Converters (ADC) Part Context

The AD977CR belongs to the AD977 family of 16-bit ADCs from Analog Devices. This series is designed for applications demanding precision and low power. The CR variant specifically denotes the commercial/industrial temperature range and SOIC package option, distinguishing it from other package styles or extended temperature variants within the same product line.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly documented direct substitutes include the ADS7809UB from Texas Instruments. Verify pin compatibility and electrical specifications before substitution. Other similar parts may require circuit modifications due to differences in interface protocols or power requirements.