AD2S44SM10B

Overview

The AD2S44SM10B is a Synchro or Resolver to Digital Converter manufactured by Analog Devices Inc. It converts analog synchro or resolver signals into digital data using a 14-bit resolution architecture. The device operates with dual power supplies, typically ±15 V, supporting a maximum negative supply voltage of -15.75 V and a minimum of -14.25 V. It features a built-in test capability and accepts a 26 V reference input. The component is housed in a Metal DIP-32 package, measuring 1.750 x 1.050 inches with a height of 0.225 inches. It is designed for high-precision angular measurement applications.

Feature Summary

• 14-bit resolution for precise digital conversion of synchro/resolver inputs
• Maximum angular accuracy of 4 arc minutes
• Built-in test functionality for system verification
• Metal Dual In-line Package (DIP) with 32 pins

Applications

• High-precision motor control systems
• Industrial automation position sensing
• Aerospace and defense navigation equipment

Procurement Notes

Verify the specific suffix 'SM10B' against the official Analog Devices datasheet to confirm pinout compatibility and temperature range specifications. Ensure that the required ±15 V power supply rails are available within the specified tolerance limits (-14.25 V to -15.75 V for negative rail). Confirm that the DIP-32 package form factor fits the target PCB layout constraints.

Selection Notes

Select this component when 14-bit resolution and 4 arc minute accuracy are required for rotary position feedback. It is suitable for environments requiring robust metal packaging and dual-supply operation. Compare against the AD2S82 if single-supply or lower pin-count solutions are needed, noting the AD2S82 offers 2 arc minute accuracy but in a different package type.

Part Context

The AD2S44 series belongs to Analog Devices' portfolio of resolver-to-digital converters, which are critical for closed-loop control in industrial and aerospace sectors. This specific model utilizes a metal DIP package, distinguishing it from surface-mount variants like the AD2S44TM18B. It serves as a legacy interface solution for converting mechanical shaft positions into digital data for microprocessor-based control systems.

Replacement Considerations

The AD2S82 is a documented alternative offering higher angular accuracy (2 arc minutes) but requires a different package (PQCC44) and operates on a single 12 V supply. Verify interface compatibility and board space requirements before substituting.