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REF1112
SBOS283C – SEPTEMBER 2003 – REVISED MARCH 2008
www.ti.com
FEATURES
● MICRO-PACKAGE: SOT23-3
● WIDE CURRENT RANGE: 1µA to 5mA
● HIGH INITIAL ACCURACY: 0.2%
● EXCELLENT SPECIFIED DRIFT
PERFORMANCE:
30ppm/°C (max) from 0°C to +70°C
50ppm/°C (max) from –40°C to +85°C
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.
Copyright © 2003-2008, Texas Instruments Incorporated
10ppm/°C, 1µA, 1.25V
SHUNT 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.
All trademarks are the property of their respective owners.
APPLICATIONS
● BATTERY-POWERED INSTRUMENTS
● PORTABLE DEVICES
● MEDICAL EQUIPMENT
● CURRENT SOURCES
● CALIBRATORS
● MICROPOWER CURRENT AND VOLTAGE
REFERENCE
DESCRIPTION
The REF1112 is a two-terminal shunt reference designed for
power- and space-sensitive applications. The REF1112
features an operating current of 1mA in a SOT23-3 package
and is an improved, lower power solution for designs
currently using voltage references in larger packages, such
as 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.
1
2
3NC
SOT23
GND
V
O
NC indicates pin should be left unconnected.
R
BIAS
V
S
V
OUT
I
REF
+ I
LOAD
I
REF
R
LOAD
I
LOAD
R
BIAS
=
V
S
− V
D
I
LOAD
+ I
REF
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