AD5668SRU-EP-1RL7

Overview

The AD5668SRU-EP-1RL7 is an enhanced product, octal, 16-bit buffered voltage-output digital-to-analog converter (DAC) from Analog Devices. Designed for defense and aerospace applications, it operates on a single 2.7 V to 5.5 V supply within a military temperature range of −55°C to +125°C. The device features an on-chip 1.25 V reference with 5 ppm/°C stability, yielding a 2.5 V full-scale output. It guarantees monotonicity by design, offers power-down currents as low as 200 nA at 3 V, and supports serial interfaces up to 50 MHz in a 16-lead TSSOP package.

Feature Summary

• Octal, 16-bit resolution with ±21 LSB INL accuracy
• Military temperature range: −55°C to +125°C
• On-chip 1.25 V reference with 5 ppm/°C temperature coefficient
• Low power consumption: 200 nA at 3 V in power-down mode

Applications

• Defense systems
• Aerospace instrumentation
• Portable battery-powered instruments
• Process control systems

Procurement Notes

Verify the Enhanced Product (EP) designation ensures controlled manufacturing baseline and qualification data availability. Confirm the RL7 suffix indicates reel packaging. Check for RoHS compliance status if required by specific assembly standards. Ensure the ordering code matches the RU-16 package option.

Selection Notes

Select this component when military-grade temperature stability and radiation-hardened-like reliability are required. The internal 1.25 V reference provides a fixed 2.5 V output span; use external references if different spans are needed. Verify that the 16-lead TSSOP footprint fits the PCB layout constraints for eight differential outputs.

Part Context

This part belongs to the AD5668-EP family, specifically tailored for high-reliability environments. Unlike standard commercial variants, the EP version supports AQEC (Aerospace and Quality Enhancement Control) protocols. It shares functional compatibility with the AD5668 series but differs in qualification data and manufacturing controls.

Replacement Considerations

Standard AD5668 variants lack the military temperature range and EP manufacturing controls. Cross-model replacements like MS5268 may offer pin compatibility but differ in reference specifications and reliability qualifications.