LT1004
Micropower Voltage
Reference
FEATURES
s
s
s
s
s
s
DESCRIPTION
The LT
廬
1004 Micropower Voltage Reference is a
2-terminal bandgap reference diode designed to provide
high accuracy and excellent temperature characteristics at
very low operating currents. Optimization of the key
parameters in the design, processing and testing of the
device results in accuracy specifications previously attain-
able only with selected units. Below is a distribution plot of
reference voltage for a typical lot of LT1004-1.2. Virtually
all of the units fall well within the prescribed limits of
鹵4mV.
The LT1004 is a pin-for-pin replacement for the
LM185/LM385 series of references with improved accu-
racy specifications. More important, the LT1004 is an
attractive device for use in systems where accuracy was
previously obtained at the expense of power consump-
tion and trimming.
For a low drift micropower reference with guaranteed
temperature coefficient, see the LT1034 data sheet.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Guaranteed
鹵4mV
Initial Accuracy LT1004-1.2
Guaranteed
鹵20mV
Accuracy LT1004-2.5
Guaranteed
10碌A(chǔ) Operating Current
Guaranteed
Temperature Performance
Operates up to 20mA
Very Low Dynamic Impedance
APPLICATIONS
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Portable Meter References
Portable Test Instruments
Battery-Operated Systems
Current Loop Instrumentation
TYPICAL APPLICATION
Micropower Cold Junction Compensation for Thermocouples
200
100k
3V
LITHIUM
LT1004-1.2
186鈩?/div>
1.8k
*
R1
1684鈩?/div>
5k AT
25擄C
鈥?/div>
Typical Distribution of
Reference Voltage (LT1004-1.2)
180
160
1200 PARTS
T
A
= 25擄C
NUMBER OF PARTS
140
120
100
80
60
40
+
+
鈥?/div>
THERMOCOUPLE
TYPE
J
K
T
S
R
1
233k
299k
300k
2.1M
鈥?/div>
* QUIESCENT CURRENT
鈮?/div>
15碌A(chǔ)
鈥?YELLOW SPRINGS INST. CO.
PART #44007
COMPENSATES WITHIN
鹵1擄C
FROM 0擄C TO 60擄C
1004 TA01
20
1.2325
1.2335
1.2345
1.2355
1.2365
1004 TA02
1.2375
1.233
1.234
1.235
1.236
1.237
U
U
U
1
LT1004-1.2相關(guān)型號PDF文件下載
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