AD2S83APZ-REEL

Overview

The AD2S83APZ-REEL is a monolithic, variable-resolution resolver-to-digital converter manufactured by Analog Devices Inc. It converts sine/cosine resolver inputs into parallel natural binary digital words using a ratiometric tracking method. The device supports user-selectable resolutions of 10, 12, 14, or 16 bits via SC1 and SC2 pins. It operates with ±12 V analog supplies and +5 V logic supply within an industrial temperature range of -40°C to +85°C. Key electrical parameters include a maximum tracking rate of 1040 RPS at 10-bit resolution, reference frequency input from 0 Hz to 20,000 Hz, and a precise analog velocity output proportional to rotational speed.

Feature Summary

• Variable Resolution: User-configurable 10, 12, 14, or 16-bit digital output via external control pins.
• High Tracking Rate: Supports up to 1040 revolutions per second (RPS) at 10-bit resolution.
• Analog Velocity Output: Provides a precision analog signal proportional to velocity, replacing mechanical tachogenerators.
• Ratiometric Conversion: Ensures high noise immunity and tolerance for long lead lengths between the resolver and converter.

Applications

• DC and AC Servo Motor Control
• Numerical Control of Machine Tools
• Robotics Axis Control

Procurement Notes

Verify that the REEL suffix indicates tape-and-reel packaging rather than tube packaging. Confirm the AP accuracy grade (8 arc min) matches system requirements compared to the IP grade. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS/BICMOS internal circuitry.

Selection Notes

Select external components R4 and R6 based on the chosen resolution and desired maximum tracking rate. Use the manufacturer's component selection software to determine optimal bandwidth settings. Ensure the reference frequency is within the 0–20,000 Hz range and signal amplitudes remain within specified limits to maintain angular accuracy.

Part Context

This part belongs to the AD2S83 family of tracking resolver-to-digital converters. The AD2S83APZ variant specifically denotes the plastic leaded chip carrier (PLCC-44) package with industrial temperature rating (-40°C to +85°C) and 8 arc minute accuracy. The REEL suffix specifies the bulk packaging format for automated assembly.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Direct replacements require matching the PLCC-44 package, voltage levels, and resolution capabilities.