AD976AAR

Analog To Digital Converters (ADC) Overview

The AD976AAR is a 16-bit, 200 kSPS analog-to-digital converter (ADC) manufactured by Analog Devices. It operates from a single +5 V supply and dissipates a maximum of 100 mW. The device features a switched capacitor successive approximation architecture with an internal 2.5 V reference and on-chip clock. It accepts a bipolar ±10 V analog input range and provides data via a high-speed parallel interface in Binary Twos Complement format. The component is housed in a 28-lead Small Outline Integrated Circuit (SOIC) package.

Analog To Digital Converters (ADC) Feature Summary

• Factory calibrated to minimize linearity errors using proprietary BiCMOS process technology
• Integrated solution containing ADC, reference voltage source, and sampling clock
• Supports both internal and external reference configurations for flexibility

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high resolution
• Data acquisition modules interfacing with microcontrollers
• Precision instrumentation utilizing standard industrial input ranges

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific grade (A, B, or C) required for your application, as performance metrics such as Signal-to-(Noise+Distortion) vary between grades. Confirm that the SOIC package option matches your PCB footprint requirements. Ensure compatibility with single-supply logic levels if interfacing directly with digital processors without level shifting.

Analog To Digital Converters (ADC) Selection Notes

Select the AD976AAR when a throughput rate of 200 kSPS is necessary, distinguishing it from the slower AD976 variant. Consider the A-grade specification if higher dynamic performance is critical. Evaluate the need for external offset and gain trimming circuits if factory calibration tolerances are insufficient for the target application accuracy.

Analog To Digital Converters (ADC) Part Context

This component belongs to the AD976/AD976A family of fast 16-bit BiCMOS A/D converters. The 'A' suffix denotes the 200 kSPS throughput speed, while the 'R' indicates the 28-lead SOIC surface-mount package. It shares architectural similarities with other SAR ADCs but is optimized for low power consumption and direct processor interfacing.

Analog To Digital Converters (ADC) Replacement Considerations

The AD976ABR and AD976ACR are confirmed substitutes within the same package and speed class, offering different performance grades.