LT1004
Micropower Voltage
Reference
FeaT DescripT
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Guaranteed 4mV Initial Accuracy LT1004-1.2 The LT 1004 micropower voltage reference is a
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Guaranteed 20mV Accuracy LT1004-2.5 2-terminal bandgap reference diode designed to provide
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Guaranteed 10A Operating Current high accuracy and excellent temperature characteristics
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Guaranteed Temperature Performance at very low operating currents. Optimization of the key
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Operates up to 20mA parameters in the design, processing and testing of
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Very Low Dynamic Impedance the device results in accuracy specifications previously
attainable only with selected units. Below is a distribution
plot of reference voltage for a typical lot of LT1004-1.2.
Ta
Virtually all of the units fall well within the prescribed
limits of 4mV.
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Portable Meter References
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Portable Test Instruments
The LT1004 is a pin-for-pin replacement for the
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Battery-Operated Systems
LM185/LM385 series of references with improved accu-
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Current Loop Instrumentation
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 tem-
perature coefficient, see the LT1034 data sheet.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog
Devices, Inc. All other trademarks are the property of their respective owners.
Typical Ta
Typical Distribution of
Micropower Cold Junction Compensation for Thermocouples Reference Voltage (LT1004-1.2)
200
1200 PARTS
180 T = 25C
A
*
100k
160
R1
140
3V
LITHIUM
120
1684 5k AT 25C
100
LT1004-1.2 +
80
186
1.8k
60
40
+
20
THERMOCOUPLE * QUIESCENT CURRENT 15A
TYPE R1 YELLOW SPRINGS INST. CO.
J 233k PART #44007
K 299k
1004 TA02
COMPENSATES WITHIN
T 300k
1C FROM 0C TO 60C
S 2.1M
1004 TA01
1004fc
1
For more information www.linear.com/LT1004
NUMBER OF PARTS
1.2325
1.233
1.2335
1.234
1.2345
1.235
1.2355
1.236
1.2365
1.237
1.2375
ion pplica
ions pplica
ion uresLT1004
Ta e MaxiMMu Tar
(Note 1)
Reverse Breakdown Current ..................................30mA Operating Temperature Range
Forward Current ................................................... 10mA LT1004M .......................................... 55C to 125C
Storage Temperature Range ................. 65C to 150C LT1004I .............................................. 40C to 85C
Lead Temperature (Soldering, 10 sec) ................. 300C LT1004C ................................................ 0C to 70C
in p Fc T
TOP VIEW
BOTTOM VIEW
BOTTOM VIEW
NC 1 8 V
OUT
1 2
NC 2 7 NC
NC 3 6 V
OUT
NC
GND 4 5
(DO NOT USE)
Z PACKAGE
H PACKAGE
3-LEAD PLASTIC TO-92
S8 PACKAGE
2-LEAD TO-46 METAL CAN
8-LEAD PLASTIC SO
T = 150C, = 160C/W
JMAX JA
T = 150C, = 440C/W, = 80C/W
JMAX JA JC
T = 150C, = 120C/W
JMAX JA
Dro er Fni MTa