AD977ARZ

Analog To Digital Converters (ADC) Overview

The AD977ARZ is a 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices. It operates from a single 5 V supply and dissipates a maximum of 100 mW. The device features a throughput rate of 100 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 SOIC package and functions within a temperature range of -40°C to +85°C.

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 on-chip clock and high-speed serial interface

Analog To Digital Converters (ADC) Applications

• Industrial control systems requiring multi-channel data acquisition
• High-precision measurement instruments such as oscilloscopes
• Communication system signal conditioning circuits

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix ARZ indicates the SOIC-20 surface mount package variant. Confirm that the standard AD977 throughput of 100 kSPS applies rather than the AD977A 200 kSPS speed grade. Check for RoHS compliance status and moisture sensitivity level requirements before integration into the manufacturing process.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution and 100 kSPS sampling rate are sufficient for the application. Choose the AD977ARZ over the AD977A if lower power consumption is prioritized over higher throughput. Ensure the design accommodates the single-ended input configuration and utilizes the internal 2.5 V reference or an external source as needed.

Analog To Digital Converters (ADC) Part Context

This part belongs to the AD977 series of high-speed, low-power 16-bit A/D converters. It shares architectural similarities with the AD977A but offers a reduced throughput rate of 100 kSPS compared to the AD977A's 200 kSPS. The series is designed for applications requiring precise DC and AC performance with minimal external components.

Analog To Digital Converters (ADC) Replacement Considerations

The AD977ANZ serves as a through-hole alternative using a 20-lead PDIP package. For higher speed requirements, the AD977A series provides 200 kSPS throughput. Other manufacturers offer compatible 16-bit SAR ADCs, though pinouts and interfaces may require circuit adjustments.