AD2S1210SSTZ-EPRL7

Overview

The AD2S1210SSTZ-EPRL7 is a monolithic resolver-to-digital converter (RDC) designed for defense and aerospace applications under the AQEC standard. It provides variable resolution from 10-bit to 16-bit with an angular accuracy of ±2.5 arc minutes plus one LSB. The device integrates a programmable sinusoidal oscillator for resolver excitation, operating within a frequency range of 2 kHz to 20 kHz. It supports a maximum tracking rate of 3125 rps at 10-bit resolution and accepts differential input signals of 3.15 V p-p ± 27%. Powered by a 5 V supply with logic interface voltages ranging from 2.3 V to 5.25 V, it operates in military temperatures from −55°C to +125°C.

Feature Summary

• Military-grade construction supporting AQEC standards with controlled manufacturing baseline and single assembly/fabrication sites.
• Integrated Type II servo loop providing continuous position and velocity output without conversion delay.
• Programmable on-board sinusoidal oscillator generating excitation frequencies between 2 kHz and 20 kHz.
• Dual data interface options including 16-bit parallel port and SPI-compatible serial interface.

Applications

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

Procurement Notes

Verify that the component meets the specific AQEC requirements for defense and aerospace projects. Confirm the ordering suffix matches the required RoHS compliance and reel packaging format. Ensure the temperature grade corresponds to the −55°C to +125°C military specification during procurement validation.

Selection Notes

Select this model when military reliability and traceability are mandatory. The EP variant ensures a controlled manufacturing baseline and product change notification. Choose based on the required resolution setting via RES0/RES1 pins and verify compatibility with the system's clock frequency limits of 6.144 MHz to 10.24 MHz.

Part Context

This part belongs to the AD2S1210 family of high-precision RDCs. The SSTZ-EPRL7 designation indicates a 48-lead LQFP package, RoHS compliance, enhanced product (EP) status for military use, and tape-and-reel delivery. It serves as the ruggedized counterpart to commercial variants, maintaining identical electrical performance while adhering to stricter quality controls.

Replacement Considerations

Direct pin-compatible replacements include other AD2S1210 variants such as the AD2S1210ASTZ or AD2S1210BSTZ. Note that non-EP versions lack the controlled manufacturing baseline and AQEC certification required for specific defense applications.