AD2S1210SST-EP-RL7

Overview

The AD2S1210SST-EP-RL7 is a monolithic resolver-to-digital converter (RDC) designed for defense and aerospace applications under the AQEC standard. It features a user-selectable resolution of 10, 12, 14, or 16 bits with an accuracy of ±2.5 arc minutes. The device integrates a programmable sinusoidal oscillator (2 kHz to 20 kHz) and employs a Type II tracking loop for continuous position and velocity output without conversion delay. It operates on a 5 V supply with a 2.3 V to 5 V logic interface, supporting both parallel and serial data ports. The component is rated for an extended military temperature range of −55°C to +125°C.

Feature Summary

• Military-grade qualification supporting defense and aerospace applications with controlled manufacturing baseline.
• Variable resolution from 10-bit to 16-bit with ±2.5 arc minute angular accuracy.
• Integrated programmable sinusoidal oscillator providing excitation frequencies between 2 kHz and 20 kHz.
• Supports absolute position, digital velocity, and incremental encoder emulation outputs via parallel or serial interfaces.

Applications

• DC and AC servo motor control
• Electric power steering systems
• Automotive motion sensing and control
• Integrated starter generators and alternators

Procurement Notes

Verify that the specific ordering suffix corresponds to the required package and RoHS compliance status. Confirm that the supply chain meets the Enhanced Product requirements, including controlled manufacturing baselines and single-site fabrication, which are critical for maintaining the specified military reliability standards.

Selection Notes

Select this component when operation in extreme environments requiring −55°C to +125°C coverage is necessary. Ensure the system clock frequency supports the desired tracking rate; for instance, a 10.24 MHz clock enables a maximum tracking rate of 3125 rps at 10-bit resolution. Verify that the input signal amplitude falls within the 2.3 V p-p to 4.0 V p-p differential range.

Part Context

This part belongs to the AD2S1210 family of resolver-to-digital converters. The 'EP' designation indicates an Enhanced Product variant qualified for harsh environments, distinguishing it from commercial grade parts. The 'SST' suffix identifies the 48-lead Low Profile Quad Flat Package (LQFP), while '-RL7' specifies the reel packaging format.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Engineering changes affecting the EP qualification baseline require direct consultation with Analog Devices to ensure continued compliance with defense and aerospace standards.