AD976AARS

Analog To Digital Converters (ADC) Overview

The AD976AARS is a 16-bit, 200 kSPS analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single +5 V supply and dissipates a maximum of 100 mW. The device features a switched capacitor architecture with an internal 2.5 V reference and on-chip clock. It accepts a bipolar ±10 V analog input range and provides a high-speed parallel interface with Binary Twos Complement data coding. The component is housed in a 28-lead Shrink Small Outline Package (SSOP).

Analog To Digital Converters (ADC) Feature Summary

• High-speed 16-bit resolution with 200 kSPS throughput rate.
• Single +5 V power supply operation with low power consumption.
• Integrated 2.5 V reference source and on-chip sampling clock.
• Factory calibrated for minimized linearity errors and offset/gain accuracy.

Analog To Digital Converters (ADC) Applications

• Data acquisition systems requiring high precision.
• Industrial process control instrumentation.
• Medical equipment signal processing.
• Test and measurement devices.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific grade (A, B, or C) required for your application, as performance metrics like Signal-to-(Noise+Distortion) vary between grades. Confirm the package type matches the SSOP-28 footprint. Check for RoHS compliance status if environmental regulations apply to your manufacturing process.

Analog To Digital Converters (ADC) Selection Notes

Select the AD976A variant over the standard AD976 when a 200 kSPS throughput rate is necessary. Ensure the design accommodates the ±10 V input range or includes appropriate scaling circuitry. Consider the external trim requirements if factory calibration tolerances are insufficient for the system's accuracy needs.

Analog To Digital Converters (ADC) Part Context

This component belongs to the AD976/AD976A family of BiCMOS A/D converters. It shares architectural similarities with other members but is distinguished by its 200 kSPS speed rating and SSOP packaging option. It serves as a complete A/D solution integrating the converter, reference, and clock functions.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements include AD976ABRS and AD976ACRS within the same package and speed class. Verify pin compatibility and electrical specifications before substitution.

Analog To Digital Converters (ADC) FAQ

What is the analog input impedance of the AD976A?

The typical analog input impedance is 13 kW with 22 pF capacitance.

Can the internal reference be overridden?

Yes, an external reference voltage can be applied to the REF pin to override the internal 2.5 V reference.

How is the output data formatted?

The output data is provided in Binary Twos Complement format via a 16-bit parallel interface.