P r o d u c t I n n o v a t i o n F r o m

VRE117/119

VRE117DS

1

DESCRIPTION

VRE117/119 Series Precision Voltage References pro-

vide ultrastable +3 V (VRE117), and ±3 V (VRE119)

output with ±0.2 mV initial accuracy and temperature

coefficient as low as 0.6 ppm/°C over the full military

temperature range. This improvement in accuracy is

made possible by a unique, proprietary multipoint laser

compensation technique. Significant improvements

have been made in other performance parameters as

well, including initial accuracy, warm-up drift, line regu-

lation, and long-term stability, making the VRE117/119

series the most accurate and stable 3 V reference

available.

VRE117/119 devices are available in two operat-

ing temperature ranges, -25°C to +85°C and -55°C

to +125°C, and two performance grades. All devices

are packaged in 14-pin hermetic ceramic packages

for maximum long-term stability. “M” versions are

screened for high reliability and quality.

Superior stability, accuracy, and quality make these

references ideal for precision applications such as A/D

and D/A converters, high-accuracy test and measure-

ment instrumentation, and transducer excitation.

FEaTuRES

♦ Very High Accuracy: ±3 V Output, ±0.2 mV

♦ Extremely Low Drift: 0.6 ppm/°C (-55°C to

+125°C)

♦ Low Warm-up Drift: 1 ppm Typical

♦ Excellent Stability: 6 ppm/1000 Hrs. Typical

♦ Excellent Line Regulation: 3 ppm/V Typical

♦ Hermetic 14-pin Ceramic DIP

♦ Military Processing Option

aPPlICaTIONS

♦ Precision A/D and D/A Converters

♦ Transducer Excitation

♦ Accurate Comparator Threshold Reference

♦ High Resolution Servo Systems

♦ Digital Voltmeters

♦ High Precision Test and Measurement Instru-

ments

Precision Voltage Reference

VRE117/119

P r o d u c t I n n o v a t i o n F r o m

VRE117

VRE119

Figure1.BlOCKDIaGRaMS

Copyright © Cirrus Logic, Inc. 2009

(All Rights Reserved)

http://www.cirrus.com

MaR2009

APEX − VRE117DSREVD