REF3112

REF3120

REF3125

REF3130

REF3133

REF3140

SBVS046A – DECEMBER 2003 – REVISED JANUARY 2004

www.ti.com

DESCRIPTION

The REF31xx is a family of precision, low power, low dropout,

series voltage references available in the tiny SOT23-3 pack-

age.

The REF31xx’s small size and low power consumption

(100

µA typ) make it ideal for portable and battery-powered

applications. The REF31xx does not require a load capacitor,

but is stable with any capacitive load and can sink/source up

to 10mA of output current.

Unloaded, the REF31xx can be operated on supplies down

to 5mV above the output voltage. All models are specified for

the wide temperature range of –40

°C to +125°C.

FEATURES

q MicroSIZE PACKAGE: SOT23-3

q LOW DROPOUT: 5mV

q HIGH OUTPUT CURRENT:

q HIGH ACCURACY: 0.2% max

q LOW I

q EXCELLENT SPECIFIED DRIFT PERFORMANCE:

15ppm/

20ppm/

Copyright © 2003-2004, Texas Instruments Incorporated

15ppm/

SERIES VOLTAGE REFERENCE

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.

APPLICATIONS

q PORTABLE, BATTERY-POWERED EQUIPMENT

q DATA ACQUISITION SYSTEMS

q MEDICAL EQUIPMENT

q HAND-HELD TEST EQUIPMENT

PRODUCT

VOLTAGE (V)

REF3112

1.25

REF3120

2.048

REF3125

2.5

REF3130

3.0

REF3133

3.3

REF3140

4.096

1

IN

2

OUT

3

GND

REF3112

REF3120

REF3125

REF3130

REF3133

REF3140

SOT23-3

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

All trademarks are the property of their respective owners.