AD977ARS

Analog To Digital Converters (ADC) Overview

The AD977ARS is a 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 a serial interface. The device supports sampling rates of 100 kSPS or 200 kSPS depending on the specific grade. It functions on a single 5 V supply voltage and is housed in a 20-lead SOIC surface-mount package. Key performance metrics include an SNR of 85 dB, DNL of +/- 2 LSB, and INL of +/- 3 LSB. The operating temperature range extends from -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• High-resolution 16-bit data conversion capability using SAR architecture
• Flexible sampling rate selection between 100 kSPS and 200 kSPS
• Single-supply 5 V operation for simplified power management
• Serial digital interface for straightforward microcontroller integration

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring precise signal digitization
• Portable instrumentation powered by single battery sources
• Data acquisition modules for environmental monitoring
• Medical diagnostic equipment needing low-power high-resolution ADCs

Analog To Digital Converters (ADC) Procurement Notes

Verify the exact suffix designation against official Analog Devices documentation to confirm the specific sampling rate grade and temperature range. Ensure compatibility with existing PCB footprints for the 20-lead SOIC package. Confirm RoHS compliance status through current manufacturer declarations before finalizing procurement plans.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance of resolution and speed is required for single-channel applications. Compare against the AD977ABR variant if a different package type such as plastic DIP is preferred. Evaluate power consumption requirements against the specified 100 mW dissipation limit under maximum operating conditions.

Analog To Digital Converters (ADC) Part Context

This part belongs to the AD977 series of BiCMOS A/D converters designed for general-purpose data acquisition. It complements other devices in the family that may offer different pin counts or interface types. The series targets applications where moderate speed and high accuracy are critical without the complexity of sigma-delta architectures.

Analog To Digital Converters (ADC) Replacement Considerations

The AD977ABR serves as a functional alternative within the same product family. Verify pinout compatibility and electrical parameter equivalence before substitution. Check for any differences in packaging options or thermal characteristics that might impact board layout.