AD977ABNZ

Analog To Digital Converters (ADC) Overview

The AD977ABNZ is a high-speed, low-power 16-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It utilizes a successive approximation switched-capacitor architecture and operates from a single 5 V supply with a maximum power dissipation of 100 mW. The device features a throughput rate of 200 kSPS, 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. The component is housed in a 20-lead Skinny DIP package and includes a factory-calibrated design to minimize linearity errors.

Analog To Digital Converters (ADC) Feature Summary

• Single 5 V supply operation with low power consumption
• Factory calibrated for minimized linearity errors
• Integrated internal 2.5 V voltage reference
• High-speed serial data interface

Analog To Digital Converters (ADC) Applications

• Data acquisition systems requiring 16-bit resolution
• Industrial process control instrumentation
• Medical equipment signal processing
• Test and measurement devices

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix ABNZ against official Analog Devices documentation to confirm pinout compatibility and electrical specifications relative to other AD977 variants. Confirm availability status through authorized distributors as this part number may be subject to limited supply or discontinuation. Ensure environmental compliance requirements match project constraints before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select the AD977ABNZ when a 16-bit resolution and 200 kSPS sampling rate are required within a single 5 V supply system. Consider the integrated reference and serial interface for simplified board design. Compare performance metrics such as SNR and THD against application needs. Evaluate alternative packages if surface-mount technology is preferred over the PDIP format.

Analog To Digital Converters (ADC) Part Context

The AD977 series represents a family of 16-bit ADCs designed for general-purpose data acquisition. The AD977 variant offers 100 kSPS throughput, while the AD977A provides 200 kSPS. These components are built on BiCMOS technology and are intended for applications demanding high accuracy and low power consumption without the complexity of dual-supply architectures.

Analog To Digital Converters (ADC) Replacement Considerations

The AD977A is functionally similar but offers higher throughput. Verify pin compatibility and electrical parameters before substitution. Other 16-bit SAR ADCs from Analog Devices may serve as alternatives if interface or package differences are acceptable.