AD977ARSZ

Analog To Digital Converters (ADC) Overview

The AD977ARSZ is a 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices. It operates from a single 5 V supply with a maximum power dissipation of 100 mW and features a throughput rate of 100 kSPS. The device includes an internal 2.5 V reference and a high-speed serial interface. It supports 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. Packaged in a 20-lead SOIC, it offers comprehensive DC and AC specifications including SNR and THD testing.

Analog To Digital Converters (ADC) Feature Summary

• Factory calibrated switched capacitor architecture minimizes linearity errors
• Single 5 V supply operation reduces system complexity
• Integrated on-chip clock and internal 2.5 V voltage reference

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high resolution
• Data acquisition modules for sensor interfacing
• Battery-powered instrumentation utilizing low power modes

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix ARSZ against the manufacturer datasheet to confirm package type and temperature range. Confirm RoHS compliance status through official documentation before integration. Check current availability as distribution channels may vary. Ensure pin compatibility with existing PCB layouts designed for 20-lead SOIC packages.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution and 100 kSPS sampling rate are required within a single-supply design. Compare against the AD977A variant if a higher throughput of 200 kSPS is necessary. Evaluate the internal reference against external precision requirements. Consider the serial interface timing constraints relative to the host processor speed.

Analog To Digital Converters (ADC) Part Context

The AD977 series represents a family of high-speed, low-power 16-bit ADCs from Analog Devices. The AD977ARSZ belongs to the standard throughput group, distinct from the faster AD977A model. It utilizes a BiCMOS process to achieve performance while maintaining low power consumption suitable for portable and industrial applications.

Analog To Digital Converters (ADC) Replacement Considerations

The AD977A is a functional upgrade offering 200 kSPS throughput with identical pinouts. Verify that the increased speed meets system requirements without necessitating layout changes.