AD977CNZ

Analog To Digital Converters (ADC) Overview

The AD977CNZ is a monolithic 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices. It operates on a single 5 V supply and supports sampling rates up to 100 kSPS with a serial interface. The device features a single-ended voltage input and is housed in a 20-pin PDIP package. Key performance metrics include an 85 dB signal-to-noise ratio, ±3 LSB integral nonlinearity, and ±0.5% FSR gain error. It functions within a temperature range of -40°C to +85°C and consumes 100 mW of power.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a high-speed 16-bit SAR ADC core with a track-and-hold amplifier for accurate signal capture.
• Features a serial interface compatible with standard microprocessor control logic for simplified system integration.
• Includes internal reference circuitry options to reduce external component count and board space.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-resolution data acquisition.
• Portable instrumentation powered by single-supply batteries.
• Medical equipment utilizing low-power signal conditioning chains.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix CNZ against official Analog Devices documentation to confirm lead-free compliance and RoHS status. Confirm that the PDIP-20 package matches the target PCB footprint requirements. Check current lifecycle status as older components may be discontinued or subject to limited availability constraints from authorized distributors.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution is required at moderate speeds below 100 kSPS. Ensure the application can accommodate a single-ended input configuration rather than differential signaling. Verify that the serial interface timing aligns with the host processor's clock capabilities. Consider the PDIP package size if surface-mount alternatives are not feasible for the assembly process.

Analog To Digital Converters (ADC) Part Context

The AD977CNZ belongs to the AD977 family of 16-bit ADCs from Analog Devices. This series provides a balance between resolution and power consumption for general-purpose data conversion tasks. The CNZ suffix typically denotes a commercial temperature grade and lead-free manufacturing process compared to military or legacy variants.

Analog To Digital Converters (ADC) Replacement Considerations

The AD977BNZ serves as a pin-compatible alternative within the same family, offering similar electrical characteristics in a PDIP package. Verify datasheet specifications for both parts to ensure parameter alignment before substitution.