ADS8326

REF5040

REF

V

OUT

GND

+IN

-

IN

V

IN

+5V

OPA365

Input

Signal

0Vto4V

5V

5V

V

DD

GND

C

1 F

m

BYPASS

R

50 W

1

C

1.2nF

1

C

22 F

m

2

1

2

3

4

8

7

6

5

DNC

NC

TRIM/NR

DNC

V

IN

TEMP

GND

V

OUT

SO-8(D)PACKAGE

(TOPVIEW)

DNC=Donotconnect

NC=Nointernalconnection

REF5020-Q1, REF5025-Q1, REF5030-Q1

REF5040-Q1, REF5045-Q1, REF5050-Q1

www.ti.com

SBOS456F

– SEPTEMBER 2008 – REVISED SEPTEMBER 2011

LOW-NOISE, VERY LOW DRIFT, PRECISION VOLTAGE REFERENCE

Check for Samples: REF5020-Q1, REF5025-Q1, REF5030-Q1, REF5040-Q1, REF5045-Q1, REF5050-Q1

1

FEATURES

DESCRIPTION

The REF50xx is a family of low-noise, low-drift, very

2

•

Qualified for Automotive Applications

high precision voltage references. These references

•

Low Temperature Drift

are capable of both sinking and sourcing, and are

– High Grade: 3 ppm/°C (max)

very robust with regard to line and load changes.

– Standard Grade: 8 ppm/°C (max)

Excellent temperature drift (3 ppm/

°C) and high

•

High Accuracy

accuracy (0.05%) are achieved using proprietary

design techniques. These features combined with

– High Grade: 0.05% (max)

very low noise make the REF50xx family ideal for use

– Standard Grade: 0.1% (max)

in high-precision data acquisition systems.

•

Low Noise: 3

Each reference voltage is available in both standard-

•

EXCELLENT LONG-TERM STABILITY:

and high-grade versions. They are offered in SO-8

– 5ppm/1000hr (typ) after 1000 hours

packages and are specified from

–40°C to 125°C.

•

High Output Current:

±10 mA

REF50xx Family

•

Temperature Range:

–40°C to 125°C

MODEL

OUTPUT VOLTAGE

REF5020

2.048 V

APPLICATIONS

REF5025

2.5 V

•

16-Bit Data Acquisition Systems

REF5030

3 V

•

ATE Equipment

REF5040

4.096 V

•

Industrial Process Control

REF5045

4.5 V

•

Medical Instrumentation

REF5050

5 V

•

Optical Control Systems

•

Precision Instrumentation

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright

© 2008–2011, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.