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Linear Technology Electronic Components Datasheet

LT1004 Datasheet

Micropower Voltage Reference

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Features
nn Guaranteed ± 4mV Initial Accuracy LT1004-1.2
nn Guaranteed ±20mV Accuracy LT1004-2.5
nn Guaranteed 10µA Operating Current
nn Guaranteed Temperature Performance
nn Operates up to 20mA
nn Very Low Dynamic Impedance
Applications
nn Portable Meter References
nn Portable Test Instruments
nn Battery-Operated Systems
nn Current Loop Instrumentation
LT1004
Micropower Voltage
Reference
Description
The LT®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
attainable 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 ±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 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 Application
Micropower Cold Junction Compensation for Thermocouples
100k
3V
LITHIUM
*
R1
LT1004-1.2
1684Ω
186Ω
5k AT 25°C
+
1.8k
THERMOCOUPLE
TYPE
J
K
T
S
+
R1
233k
299k
300k
2.1M
*
QUIESCENT CURRENT 15A
YELLOW SPRINGS INST. CO.
PART #44007
COMPENSATES WITHIN
±1°C FROM 0°C TO 60°C
1004 TA01
Typical Distribution of
Reference Voltage (LT1004-1.2)
200 1200 PARTS
180 TA = 25°C
160
140
120
100
80
60
40
20
1004 TA02
For more information www.linear.com/LT1004
1004fc
1


Linear Technology Electronic Components Datasheet

LT1004 Datasheet

Micropower Voltage Reference

No Preview Available !

LT1004
Absolute Maximum Ratings
(Note 1)
Reverse Breakdown Current ...................................30mA
Forward Current .................................................... 10mA
Storage Temperature Range.................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
Operating Temperature Range
LT1004M ........................................... –55°C to 125°C
LT1004I ............................................... –40°C to 85°C
LT1004C ................................................. 0°C to 70°C
Pin Configuration
BOTTOM VIEW
12
H PACKAGE
2-LEAD TO-46 METAL CAN
TJMAX = 150°C, θJA = 440°C/W, θJC = 80°C/W
TOP VIEW
NC 1
8 VOUT
NC 2
7 NC
NC 3
GND 4
6 VOUT
5
NC
(DO NOT USE)
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 120°C/W
BOTTOM VIEW
Z PACKAGE
3-LEAD PLASTIC TO-92
TJMAX = 150°C, θJA = 160°C/W
Order Information http://www.linear.com/product/LT1004#orderinfo
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT1004MH-2.5#PBF
LT1004MH-2.5#TRPBF
2-Lead TO-46 Metal Can
–55°C to 125°C
LT1004CS8-1.2#PBF
LT1004CS8-1.2#TRPBF 0412
8-Lead Plastic S0
0°C to 70°C
LT1004CS8-2.5#PBF
LT1004CS8-2.5#TRPBF 0425
8-Lead Plastic S0
0°C to 70°C
LT1004IS8-1.2#PBF
LT1004IS8-1.2#TRPBF 0412I
8-Lead Plastic S0
–40°C to 85°C
LT1004IS8-2.5#PBF
LT1004IS8-2.5#TRPBF 0425I
8-Lead Plastic S0
–40°C to 85°C
LT1004CZ-1.2#PBF
LT1004CZ-1.2#TRPBF
3-Lead Plastic TO-92
0°C to 70°C
LT1004CZ-2.5#PBF
LT1004CZ-2.5#TRPBF
3-Lead Plastic TO-92
0°C to 70°C
LT1004IZ-1.2#PBF
LT1004IZ-1.2#TRPBF
3-Lead Plastic TO-92
–40°C to 85°C
LT1004IZ-2.5#PBF
LT1004IZ-2.5#TRPBF
3-Lead Plastic TO-92
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
1004fc
2 For more information www.linear.com/LT1004


Part Number LT1004
Description Micropower Voltage Reference
Maker Linear Technology
Total Page 12 Pages
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