LT1031DMH/883 Linear Technology Corporation, LT1031DMH/883 Datasheet

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LT1031DMH/883

Manufacturer Part Number
LT1031DMH/883
Description
Manufacturer
Linear Technology Corporation
Datasheet

Specifications of LT1031DMH/883

Date_code
99+
FEATURES
APPLICATIO S
TYPICAL APPLICATIO
V
IN
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
> 100dB Ripple Rejection
Minimum Input Voltage of 11V
A-to-D and D-to-A Converters
Precision Regulators
Digital Voltmeters
lnertial Navigation Systems
Precision Scales
Portable Reference Standard
IN
LT1031
GND
OUT
Negative Connections
U
Basic Positive and
V
P-P
OUT
0.1Hz to 10Hz
R1 =
U
I
LOAD
V
IN
– V
+ 1.5mA
OUT
LT1031
GND
– V
R1
IN
OUT
– V
OUT
LT1031 • TA01
DESCRIPTIO
The LT
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.
All other trademarks are the property of their respective owners.
*See LH0070 Electrical Characteristics table and AD581 cross reference guide.
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
1031 is a precision 10V reference with ultralow
Precision 10V Reference
20
40
35
30
25
15
10
–0.10
0
5
T
DISTRIBUTION
FROM 5 RUNS
Distribution of Output Accuracy
A
= 25°C
–0.06
U
OUTPUT ACCURACY (%)
–0.02
LT1031/LH0070
0
0.02
0.06
LT1031 TA02
0.10
1031fb
1

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