LT1034-1.2/LT1034-2.5
Micropower Dual
Reference
FEATURES
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DESCRIPTION
The LT
廬
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/擄C
temperature drift. Operating on only 20碌A(chǔ), 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.
Guaranteed 20 ppm/
擄
C Drift
(H Package and Z Package)
Guaranteed 40 ppm/
擄
C Drift (SO-8 Package)
20
碌
A to 20mA Operation (1.2V)
Dynamic Impedance: 1鈩?/div>
7V, 100碌A(chǔ) Reference
APPLICATIONS
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Portable Meters
Precision Regulators
Calibrators
TYPICAL APPLICATION AND BLOCK DIAGRAM
15V
Temperature Drift LT1034CS8-1.2
2.5
2.0
REVERSE VOLTAGE CHANGE (mV)
50k
500k
1.2V OR 2.5V
OUTPUT
1.5
1.0
0.5
0
鈥?.5
鈥?.0
鈥?.5
鈥?.0
7V OUTPUT
7V
1.225V
OR 2.500V
LT1034 鈥?TA01
鈥?.5
鈥?0 鈥?5
RELATED PARTS
PART NUMBER
LT1004
LT1019
LT1236
DESCRIPTION
Low Cost Precision Band-Gap
Precision Series or Shunt Band-Gap
Precision Series or Shunt Buried Zener
COMMENTS
Micropower, SO-8, Industrial Temperature Options
Low Dropout, Multiple Output Options
Low Noise, Low Power, Multiple Output Options
U
W
U U
U
50
25
0
75
TEMPERATURE (擄C)
100
125
LT1034 鈥?TPC02
1
1
2
3
4
