REF1112 Datasheet, PDF (1/8 Pages) Burr-Brown (TI) – 10ppm/C, 1UA, 1.25V Shunt Voltage Reference

REF1112
10ppm/°C, 1µA, 1.25V
Shunt Voltage Reference
SBOS283 – SEPTEMBER 2003
FEATURES
z MICRO-PACKAGE: SOT23-3
z WIDE CURRENT RANGE: 1µA to 5mA
z HIGH INITIAL ACCURACY: 0.2%
z EXCELLENT SPECIFIED DRIFT
PERFORMANCE:
30ppm/°C (max) from 0°C to +70°C
50ppm/°C (max) from –40°C to +85°C
APPLICATIONS
z BATTERY-POWERED INSTRUMENTS
z PORTABLE DEVICES
z MEDICAL EQUIPMENT
z CURRENT SOURCES
z CALIBRATORS
z MICROPOWER CURRENT AND VOLTAGE
REFERENCE
DESCRIPTION
The REF1112 is a two-terminal shunt reference designed for
power and space-sensitive applications. The REF1112 fea-
tures an operating current of 1µA in a SOT23-3 package
and is an improved, lower power pin-compatible drop-in
replacement for designs currently using the REF1004 and
LT1004. The REF1112 is specified from –40°C to +85°C
with operation extending from –40°C to +125°C.
The REF1112 complements other 1µA components from
Texas Instruments including the OPA349 and the TLV240x
low power operational amplifiers, and the TLV349x
micropower voltage comparator.
I_REF + I_LOAD
I_REF
V_S
R_BIAS
I_LOAD
V_OUT
R_LOAD
R_BIAS =
V_S − V_D
I_LOAD + I_REF
V_O 1
3 NC
GND 2
SOT23
NC indicates pin should be left unconnected.
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.
All trademarks are the property of their respective owners.
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.
www.ti.com
Copyright © 2003, Texas Instruments Incorporated