FEATURES
s Guaranteed 20 ppm/°C Drift
s Guaranteed 40 ppm/°C Drift (SO-8 Package)
s 20µA to 20mA Operation (1.2V)
s Dynamic Impedance: 1Ω
s 7V, 100µA Reference
U
APPLICATIO S
s Portable Meters
s Precision Regulators
s Calibrators
TYPICAL APPLICATIO
15V
50k
7V OUTPUT
7V
500k
1.2V OR 2.5V
OUTPUT
1.225V
OR 2.500V
LT1034 • TA01
LT1034-1.2/LT1034-2.5
Micropower Dual
Reference
DESCRIPTIO
The LT®1034 is a micropower, precision 1.2V/2.5 refer-
ence combined with a 7V auxiliary reference. The 1.2V/2.5V
reference is a trimmed, thin-film, band-gap, voltage refer-
ence with 1% initial tolerance and guaranteed 20ppm/°C
temperature drift. Operating on only 20µA, the LT1034
offers guaranteed drift, low temperature cycling hyster-
esis and good long-term stability. The low dynamic im-
pedance makes the LT1034 easy to use from unregulated
supplies. The 7V reference is a subsurface zener device for
less demanding applications.
The LT1034 reference can be used as a high performance
upgrade of the LM385 or LT1004, where guaranteed
temperature drift is desired.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Temperature Drift LT1034CS8-1.2
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–2.5
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1034 • TPC02
1034fe
1
