AD5666SRU-EP-2RL7

Overview

The AD5666SRU-EP-2RL7 is a quad-channel, 16-bit digital-to-analog converter (DAC) from Analog Devices, designed for military and aerospace applications under the AQEC standard. It features a built-in 2.5 V reference voltage source with 5 ppm/°C drift, enabling a full-scale output of 5 V. Operating on a single 2.7 V to 5.5 V supply, it guarantees monotonicity by design and includes an internal gain of 2. The device utilizes a 14-pin TSSOP package and supports a high-speed serial interface up to 50 MHz.

Feature Summary

• Quad-channel 16-bit buffered voltage output DAC
• Built-in 2.5 V, 5 ppm/°C reference voltage source
• Military temperature range (-55°C to +125°C)
• AQEC standard compliance for defense/aerospace use

Applications

• Defense systems
• Aerospace instrumentation
• High-reliability process control

Procurement Notes

Verify the suffix EP-2RL7 confirms the enhanced product variant, specific 2.5 V reference configuration, and reel packaging format. Ensure the component meets the required AQEC standards and military temperature specifications for your application environment.

Selection Notes

Select this model when a quad-channel 16-bit DAC with an integrated 2.5 V reference is required for harsh environments. It is suitable for designs needing rail-to-rail output swing and guaranteed monotonicity without external calibration.

Part Context

This part belongs to the AD5666 family of low-power, quad-channel DACs. The 'EP' designation indicates an enhanced product version controlled for defense and aerospace markets, offering unique manufacturing and test facilities compared to commercial variants.

Replacement Considerations

Direct replacements must match the quad-channel 16-bit architecture, 14-pin TSSOP package, and military temperature range. Verify if alternative parts require external references or offer different power consumption profiles.

FAQ

What is the maximum clock rate for the serial interface?

The AD5666SRU-EP-2RL7 supports a serial interface clock rate of up to 50 MHz.

How does the device handle power-on reset states?

It includes a power-on reset circuit that ensures outputs go to 0 V or mid-scale, depending on the POR pin configuration, until a valid write operation occurs.

Is the device guaranteed to be monotonic?

Yes, the AD5666 is designed to guarantee monotonicity across its entire operating range.