1

FEATURES

DESCRIPTION

APPLICATIONS

ADS8326

REF5040

REF

V

OUT

GND

+IN

-

IN

V

IN

+5V

OPA365

Input

Signal

0Vto4V

+5V

+5V

V

DD

GND

C

BYPASS

1 F

m

R

1

50W

C

1

1.2nF

C

2

22 F

m

1

2

3

4

8

7

6

5

DNC

(1)

NC

(2)

TRIM

DNC

(1)

V

IN

TEMP

GND

V

OUT

REF50xx

SO-8,MSOP-8

(3)

(1)DNC=Donotconnect.

(2)NC=Nointernalconnection.

(3)MSOP-8packageavailableQ3,2007.

NOTES:

REF5020,, REF5025

REF5030, REF5040

www.ti.com

REF5045, REF5050

SBOS410 – JUNE 2007

Low-Noise, Very Low Drift, Precision

VOLTAGE REFERENCE

2

• LOW TEMPERATURE DRIFT:

–

High-Grade: 3ppm/

°C (max)

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

high precision voltage references. These references

–

Standard-Grade: 8ppm/

°C (max)

are capable of both sinking and sourcing, and are

•

HIGH ACCURACY:

very robust with regard to line and load changes.

–

High-Grade: 0.05% (max)

Excellent

temperature

drift

(3ppm/

°C) and high

–

Standard-Grade: 0.1% (max)

accuracy (0.05%) are achieved using proprietary

•

LOW NOISE: 3

design techniques. These features, combined with

very-low noise make the REF50xx family ideal for use

•

HIGH OUTPUT CURRENT: ±10mA

in high-precision data acquisition systems.

•

TEMPERATURE RANGE: –40

°C to +125°C

Each reference voltage is available in both standard-

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

(available Q3, 2007) and SO-8 packages, and are

•

16-BIT DATA ACQUISITION SYSTEMS

specified from –40

°C to +125°C.

•

ATE EQUIPMENT

•

INDUSTRIAL PROCESS CONTROL

REF50xx Family

•

MEDICAL INSTRUMENTATION

MODEL

OUTPUT VOLTAGE

•

OPTICAL CONTROL SYSTEMS

REF5020

2.048V

•

PRECISION INSTRUMENTATION

REF5025

2.5V

REF5030

3.0V

REF5040

4.096V

REF5045

4.5V

REF5050

5.0V

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 © 2007, 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.