AD2S83IPZ-REEL

Overview

The AD2S83IPZ-REEL is a monolithic variable resolution resolver-to-digital converter manufactured by Analog Devices Inc. It converts resolver format input signals into parallel natural binary digital words using a ratiometric tracking conversion method, ensuring high noise immunity and tolerance of long leads. The device supports user-selectable resolutions of 10, 12, 14, or 16 bits via external control pins SC1 and SC2. It operates over reference frequencies from 0 Hz to 20,000 Hz with power supplies of ±12 V dc (±5%) and +5 V dc logic supply. The component is housed in a 44-lead Plastic Leaded Chip Carrier (PLCC) package and functions within an industrial temperature range of –40 °C to +85 °C.

Feature Summary

• Variable Resolution: Supports 10, 12, 14, or 16-bit resolution selectable by the user via SC1/SC2 pins.
• High Tracking Rate: Achieves up to 1040 revolutions per second at 10-bit resolution.
• Ratiometric Conversion: Provides continuous output position data without conversion delay and ensures high noise immunity.
• Velocity Output: Generates a precise analog signal proportional to velocity, replacing mechanical tachogenerators.

Applications

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

Procurement Notes

Verify that the REEL suffix indicates tape-and-reel packaging rather than tube packaging when sourcing this specific part number. Confirm the IP variant accuracy specification of 8 arc minutes matches system requirements. 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 carefully as their values depend on the chosen resolution setting. Use the manufacturer's design aid software to determine optimal bandwidth and tracking rate parameters. Ensure the reference frequency remains within the 0–20,000 Hz range and harmonic distortion does not exceed 10% for specified accuracy.

Part Context

This component belongs to the AD2S83 family of tracking resolver-to-digital converters. The IPZ designation identifies the industrial temperature grade (-40°C to +85°C) with 8 arc minute angular accuracy. The REEL suffix specifies the reel packaging format, distinguishing it from the standard tube-packaged AD2S83IP.

Replacement Considerations

The AD2S83AP is the commercial grade equivalent with identical electrical specifications but a different temperature range. Verify pin compatibility and resolution settings when substituting between variants.