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LT1236_15

Description
Precision Reference
File Size217KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet View All

LT1236_15 Overview

Precision Reference

LT1236
Precision Reference
FEATURES
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
Ultra-Low Drift: 5ppm/°C Max
Trimmed to High Accuracy: 0.05% Max
Industrial Temperature Range SO Package
Operates in Series or Shunt Mode
Pin Compatible with AD586, AD587
Output Sinks and Sources in Series Mode
Very Low Noise < 1ppm
P-P
(0.1Hz to 10Hz)
100% Noise Tested
> 100dB Ripple Rejection
Minimum Input/Output Differential of 1V
The LT
®
1236 is a precision reference that combines ultra-
low drift and noise with excellent long-term stability and
high output accuracy. The reference output will both
source and sink up to 10mA and is almost totally immune
to input voltage variations. Two voltages are available: 5V
and 10V. The 10V version can be used as a shunt regulator
(two-terminal zener) with the same precision characteris-
tics as the three-terminal connection. Special care has
been taken to minimize thermal regulation effects and
temperature induced hysteresis.
The LT1236 combines both superior accuracy and tem-
perature coefficient specifications without the use of high
power, on-chip heaters. The LT1236 references are based
on a buried zener diode structure which eliminates noise
and stability problems with surface breakdown devices.
Further, a subsurface zener exhibits better temperature
drift and time stability than even the best band-gap
references.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATI
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s
s
s
s
S
A/D and D/A Converters
Precision Regulators
Precision Scales
Inertial Navigation Systems
Digital Voltmeters
TYPICAL APPLICATI
Basic Positive and Negative Connections
Typical Distribution of Temperature Drift
DISTRIBUTION
22 OF THREE RUNS
20
18
16
UNITS (%)
24
LT1236
V
IN
IN
GND
OUT
V
OUT
NC
LT1236-10
IN
GND
–V
OUT
R1 =
V
OUT
– (V
)
I
LOAD
+ 1.5mA
R1
–15V
(V
)
LT1236 TA01
OUT
14
12
10
8
6
4
2
0
–3
–2
–1
0
1
OUTPUT DRIFT (ppm/°C)
2
3
U
LT1236 TA02
UO
UO
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