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LH0070-0H#PBF 产品设计参考手册 - ADI（亚德诺）
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LH0070-0H#PBF数据手册
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1
LT1031/LH0070
1031fb
■
Pin Compatible with LH0070 and AD581*
■
Ultralow Drift—5ppm/°C Max Slope
■
Trimmed Output Voltage
■
Operates in Series or Shunt Mode
■
Output Sinks and Sources in Series Mode
■
Very Low Noise < 1ppm
P-P
0.1Hz to 10Hz
■
> 100dB Ripple Rejection
■
Minimum Input Voltage of 11V
The LT
®
1031 is a precision 10V reference with ultralow
drift and noise, extremely good long term stability, and
almost total immunity to input voltage variations. The
reference output will both source and sink up to 10mA and
can be used as a shunt regulator (two terminal Zener) with
the same precision characteristics as the three terminal
connection. Special care has been taken to minimize
thermal regulation effects and temperature induced
hysteresis.
The LT1031 reference is based on a buried Zener diode
structure which eliminates noise and stability problems
associated with surface breakdown devices. Further, a
subsurface Zener exhibits better temperature drift and
time stability than even the best band-gap references.
Unique circuit design makes the LT1031 the first three
terminal IC reference to offer ultralow drift without the
use of high power on-chip heaters. Output voltage is
pretrimmed to 0.05% accuracy.
The LT1031 can be used as a plug-in replacement for
the AD581 and LH0070,* with improved electrical and
thermal performance.
■
A-to-D and D-to-A Converters
■
Precision Regulators
■
Digital Voltmeters
■
lnertial Navigation Systems
■
Precision Scales
■
Portable Reference Standard
Basic Positive and
Negative Connections
Precision 10V Reference
Distribution of Output Accuracy
FEATURES
APPLICATIO S
U
DESCRIPTIO
U
V
OUT
I
LOAD
+ 1.5mA
–V
OUT
–V
IN
V
IN
–V
OUT
V
IN
LT1031 LT1031
IN
OUT
R1 = R1
OUT
GND
GND
LT1031 • TA01
OUTPUT ACCURACY (%)
–0.10
PERCENT OF UNITS (%)
15
20
25
0
0.06
LT1031 TA02
10
5
0
–0.06 –0.02 0.02
30
35
40
0.10
T
A
= 25°C
DISTRIBUTION
FROM 5 RUNS
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
*See LH0070 Electrical Characteristics table and AD581 cross reference guide.
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