Low Noise, Micropower

5.0 V Precision Voltage Reference

ADR293-EP

Rev. 0

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FEATURES

6.0 V to 15 V supply range

Supply current: 15 μA maximum

Low noise: 15 μV p-p typical (0.1 Hz to 10 Hz)

High output current: 5 mA

Pin-compatible with the REF02/REF19x

ENHANCED PRODUCT FEATURES

Supports defense and aerospace applications (AQEC

standard)

Military temperature range (−55°C to +125°C)

Controlled manufacturing baseline

1 assembly/test site

1 fabrication site

Enhanced product change notification

Qualification data available on request

APPLICATIONS

Portable instrumentation

Precision reference for 5 V systems

ADC and DAC reference

Solar-powered applications

PIN CONFIGURATION

TOP VIEW

(Not to Scale)

1

2

3

4

ADR293-EP

NC

GND

NC

8

7

6

5

NC

NC

NC

NC = NO CONNECT

Figure 1. 8-Lead TSSOP (RU-8)

GENERAL DESCRIPTION

The ADR293-EP is a low noise, micropower precision voltage

reference that utilizes an XFET® (eXtra implanted junction FET)

reference circuit. The XFET architecture offers significant

performance improvements over traditional band gap and

buried Zener-based references. Improvements include one

quarter the voltage noise output of band gap references

operating at the same current, very low and ultralinear

temperature drift, low thermal hysteresis, and excellent long-

term stability.

The ADR293-EP is a series voltage reference providing stable

and accurate output voltage from a 6.0 V supply. Quiescent

current is only 15 μA maximum, making this device ideal for

battery powered instrumentation. The temperature coefficient

is 30 ppm/°C maximum over the military temperature range,

and the initial error is only 0.2% at 25°C. Line regulation and

load regulation are typically 70 ppm/V and 30 ppm/mA,

respectively, maintaining the reference’s overall high

performance.

The ADR293-EP is specified over the military temperature

range of –55°C to +125°C. This device is available in an 8-lead

TSSOP package.

Additional applications information is available in the ADR293

data sheet.