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Linear Technology Electronic Components Datasheet

LT1009 Datasheet

2.5V Reference

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LT1009 Series
2.5V Reference
FEATURES
s Maximum Initial Tolerance: 0.2%
s Guaranteed Temperature Stability
s Maximum 0.6Dynamic Impedance
s Wide Operating Current Range
s Directly Interchangeable with LM136 for Improved
Performance
s No Adjustments Needed for Minimum Temperature
Coefficient
U
APPLICATIO S
s Reference for 5V Systems
s 8-Bit A/D and D/A Reference
s Digital Voltmeters
s Current Loop Measurement and Control Systems
s Power Supply Monitor
DESCRIPTIO
The LT®1009 is a precision trimmed 2.5V shunt regulator
diode featuring a maximum initial tolerance of only ±5mV.
The low dynamic impedance and wide operating current
range enhances its versatility. The 0.2% reference toler-
ance is achieved by on-chip trimming which not only
minimizes the initial voltage tolerance but also minimizes
the temperature drift.
Even though no adjustments are needed with the LT1009,
a third terminal allows the reference voltage to be adjusted
±5% to calibrate out system errors. In many applications,
the LT1009 can be used as a pin-to-pin replacement of the
LM136 and the external trim network eliminated.
For a lower drift 2.5V reference, see the LT1019 data sheet.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
2.5V Reference
5V TO 35V
3.6k
LT1009
OUTPUT
10k*
TRIM
*DOES NOT AFFECT
TEMPERATURE COEFFICIENT.
±5% TRIM RANGE
1009 TA01
Output Voltage
2.53
2.52
GUARANTEED
2.51 MAXIMUM
2.50 TYPICAL
2.49 GUARANTEED
MINIMUM
2.48
2.47
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1009 TA02
1


Linear Technology Electronic Components Datasheet

LT1009 Datasheet

2.5V Reference

No Preview Available !

LT1009 Series
ABSOLUTE MAXIMUM RATINGS (Note 1)
Reverse Current .................................................... 20mA
Forward Current ................................................... 10mA
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
Operating Temperature Range
LT1009/LT1009C .................................. 0°C to 70°C
LT1009I ........................................... – 40°C to 85°C
LT1009M ........................................ –55°C to 125°C
PACKAGE/ORDER INFORMATION
BOTTOM VIEW
+
ADJ
H PACKAGE
3-LEAD TO-46 METAL CAN
TJMAX = 150°C, θJA = 440°C/ W, θJC = 80°C/ W
ORDER PART NUMBER
LT1009MH
LT1009CH
TOP VIEW
NC 1
NC 2
NC 3
4
8
7 NC
6
5 ADJ
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 190°C/ W
ORDER PART NUMBER
LT1009S8
LT1009IS8
S8 PART MARKING
1009
1009I
BOTTOM VIEW
ADJ + –
321
Z PACKAGE
3-LEAD PLASTIC TO-92
TJMAX = 100°C, θJA = 160°C/ W
ORDER PART NUMBER
LT1009CZ
LT1009IZ
AVAILABLE OPTIO S
TEMPERATURE
0°C to 70°C
–40°C to 85°C
–55°C to 125°C
ACCURACY
(%)
0.20
0.40
0.20
0.40
0.20
TEMPERATURE
COEFFICIENT
(ppm/°C)
25
25
25
35
35
TO-46
(H)
LT1009CH
LT1009MH
PACKAGE STYLE
SO-8
(S8)
LT1009S8
LT1009IS8
TO-92
(Z)
LT1009CZ
LT1009IZ
2


Part Number LT1009
Description 2.5V Reference
Maker Linear Technology
Total Page 8 Pages
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