AD977BRS

Analog To Digital Converters (ADC) Overview

The AD977BRS is a high-speed, low-power 16-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It utilizes a successive approximation register (SAR) architecture with a throughput rate of 100 kSPS. The device operates from a single 5 V supply and dissipates a maximum power of 100 mW. It features a serial interface and an on-chip clock. The input range supports unipolar configurations such as 0 V to 10 V or bipolar ranges like ±10 V. Key performance metrics include a signal-to-noise ratio (SNR) of 85 dB, differential nonlinearity (DNL) of +/- 2 LSB, and integral nonlinearity (INL) of +/- 3 LSB. It is housed in a 20-lead SOIC package.

Analog To Digital Converters (ADC) Feature Summary

• Factory calibrated switched capacitor architecture minimizes linearity errors
• Single 5 V supply operation with low power consumption
• Integrated internal 2.5 V reference and high-speed serial interface

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring precise data acquisition
• Portable instrumentation powered by single-supply batteries
• Vibration monitoring and acoustic analysis equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and temperature grade. Check for obsolescence status as older SAR ADC families may have limited availability. Ensure compliance with RoHS directives if applicable to the manufacturing date code.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution at 100 kSPS is required within a single 5 V supply constraint. Compare against the AD977A variant if a higher 200 kSPS throughput rate is necessary. Consider the physical package constraints of the 20-lead SOIC form factor during PCB layout planning.

Analog To Digital Converters (ADC) Part Context

This part belongs to the AD977 family of 16-bit ADCs from Analog Devices. It shares architectural similarities with the AD977ANZ and AD977CRZ but differs in package type and specific electrical tolerances defined by the 'B' grade. The series is designed for applications balancing speed and power efficiency.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes include the ADS7809UB from Texas Instruments. Alternative options within the same family include the AD977ABRS for identical specifications or the AD977A variants for increased sampling rates.