AD976ABRS

Analog To Digital Converters (ADC) Overview

The AD976ABRS is a 16-bit, 200 kSPS analog-to-digital converter (ADC) from Analog Devices. It operates on a single +5 V supply with a maximum power dissipation of 100 mW. The device features a ±10 V analog input range and utilizes a successive approximation switched-capacitor architecture. Key specifications include an Integral Nonlinearity Error of -3.0 LSB to -2.0 LSB, a Signal-to-(Noise + Distortion) ratio of 85 dB, and a Full-Power Bandwidth of 700 kHz. It includes an internal 2.5 V reference and a high-speed parallel interface.

Analog To Digital Converters (ADC) Feature Summary

• High-speed 16-bit resolution with 200 kSPS throughput using a switched-capacitor SAR architecture.
• Integrated solution featuring an internal 2.5 V reference and on-chip clock generation.
• Factory calibrated for minimized linearity errors and comprehensive DC/AC performance testing.
• Single +5 V supply operation with low power consumption.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring precise data acquisition.
• Test and measurement equipment utilizing standard ±10 V signal ranges.
• Data acquisition modules interfacing directly with microcontrollers or DSPs via parallel bus.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific grade and package suffix against the official Analog Devices ordering guide to ensure correct INL and SNR specifications. Confirm that the SSOP-28 package variant matches the design requirements for thermal management and board space constraints prior to integration.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a complete 16-bit ADC solution with integrated reference and clock is required. Ensure the system supports a single 5 V supply and can accommodate the ±10 V input range. Consider the parallel interface timing requirements and the need for external offset/gain trimming if higher accuracy than factory calibration is necessary.

Analog To Digital Converters (ADC) Part Context

The AD976ABRS belongs to the AD976/AD976A family of BiCMOS A/D converters. This series is designed for applications demanding high speed and low power consumption. The 'AB' designation indicates the B-grade performance level with 85 dB S/(N+D), while 'RS' denotes the 28-lead Shrink Small Outline Package.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include AD976ACRS (C-grade). For different throughput or package options, consider AD976AAR or AD976AAN variants, ensuring interface and performance parameters align with system needs.

Analog To Digital Converters (ADC) FAQ

What is the analog input impedance of the AD976ABRS?

The nominal analog input impedance is 13 kW with an input capacitance of 22 pF.

How is the output data formatted?

The output data is in Binary Twos Complement format.

Can the internal reference be overridden?

Yes, an external reference voltage between 2.3 V and 2.7 V can be applied to the REF pin to override the internal 2.5 V reference.