AD977AARZ

Analog To Digital Converters (ADC) Overview

The AD977AARZ is a 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices. It operates from a single 5 V supply and delivers a throughput rate of 200 kSPS. The device integrates an internal 2.5 V reference and features a high-speed serial interface with an on-chip clock generator. It supports full-scale bipolar input ranges of ±10 V, ±5 V, and ±3.3 V, as well as unipolar ranges of 0 V to 10 V, 0 V to 5 V, and 0 V to 4 V. Power dissipation is limited to 100 mW maximum, with a power-down mode consuming 50 μW. The component is housed in a 28-lead Skinny SSOP package.

Analog To Digital Converters (ADC) Feature Summary

• Single 5 V supply operation with low power consumption
• Factory calibrated switched capacitor architecture for minimized linearity errors
• Integrated internal 2.5 V voltage reference
• High-speed serial interface with on-chip clock generation

Analog To Digital Converters (ADC) Applications

• Wireless infrastructure transceiver architectures
• Software-defined radios
• Portable instrumentation
• Medical ultrasound equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'ARZ' against official Analog Devices documentation to confirm the package type and RoHS compliance status. Ensure the required input voltage range matches the supported bipolar or unipolar configurations before integration. Confirm availability through authorized distributors as supply may be restricted.

Analog To Digital Converters (ADC) Selection Notes

Select the AD977AARZ when a 200 kSPS sampling rate is required for 16-bit resolution applications. Compare against the AD977 variant if a lower 100 kSPS throughput is sufficient for the system design. Verify that the single-ended input configuration aligns with the sensor or signal source characteristics.

Analog To Digital Converters (ADC) Part Context

The AD977AARZ belongs to the AD977 family of high-speed, low-power 16-bit A/D converters. This series utilizes a BiCMOS process and a switched capacitor architecture. The AD977A variant specifically offers double the throughput speed of the standard AD977 model while maintaining similar power and accuracy specifications.

Analog To Digital Converters (ADC) Replacement Considerations

The AD977 is a compatible alternative within the same family but operates at a reduced throughput rate of 100 kSPS instead of 200 kSPS.