AD977ACRZ

Analog To Digital Converters (ADC) Overview

The AD977ACRZ is a 16-bit, high-speed Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc. It utilizes a successive approximation register (SAR) architecture with a switched capacitor input structure. The device operates from a single 5 V supply and dissipates a maximum of 100 mW. It features an internal 2.5 V reference and a high-speed serial interface compatible with SPI. The AD977A variant supports a throughput rate of 200 kSPS. It is housed in a 20-lead SOIC package and is specified for operation over the industrial temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Factory calibrated SAR architecture minimizes linearity errors
• Single 5 V supply operation with low power consumption
• Integrated 2.5 V voltage reference source
• High-speed serial data interface

Analog To Digital Converters (ADC) Applications

• Industrial process control systems
• Vibration monitoring and analysis
• Medical instrumentation
• Data acquisition systems

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm lot traceability and RoHS compliance status prior to integration. Ensure storage conditions adhere to moisture sensitivity level requirements to prevent package damage during soldering processes.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a 16-bit resolution and 200 kSPS sampling rate are required within a single-supply environment. Compare against the standard AD977 if a lower 100 kSPS throughput is sufficient for cost reduction. Verify that the serial interface timing meets the system controller's clock specifications.

Analog To Digital Converters (ADC) Part Context

This component belongs to the AD977 family of 16-bit ADCs. It shares architectural similarities with the AD976 but differs in interface type and pinout. The 'CRZ' suffix indicates a lead-free, halogen-free RoHS-compliant version packaged in a 20-SOIC format, distinct from the DIP or SSOP variants available in the same series.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible alternatives include the AD977CRZ (100 kSPS) or the AD977ARSZ (SSOP package). For functional equivalents with different interfaces, consider the ADS7809 or ADS8509 from Texas Instruments, noting potential differences in serial protocol and input impedance.