LT1009 Series
2.5V Reference
FEATURES
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DESCRIPTIO
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Maximum Initial Tolerance: 0.2%
Guaranteed
Temperature Stability
Maximum 0.6鈩?Dynamic Impedance
Wide Operating Current Range
Directly Interchangeable with LM136 for Improved
Performance
No Adjustments Needed for Minimum Temperature
Coefficient
The LT
廬
1009 is a precision trimmed 2.5V shunt regulator
diode featuring a maximum initial tolerance of only
鹵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
鹵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.
APPLICATIO S
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Reference for 5V Systems
8-Bit A/D and D/A Reference
Digital Voltmeters
Current Loop Measurement and Control Systems
Power Supply Monitor
TYPICAL APPLICATION
2.5V Reference
2.53
5V TO 35V
2.52
REFERENCE VOLTAGE (V)
3.6k
OUTPUT
LT1009
10k*
TRIM
2.51
2.50
2.49
2.48
*DOES NOT AFFECT
TEMPERATURE COEFFICIENT.
鹵5%
TRIM RANGE
1009 TA01
2.47
鈥?0 鈥?5
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Output Voltage
GUARANTEED
MAXIMUM
TYPICAL
GUARANTEED
MINIMUM
50
25
75
0
TEMPERATURE (擄C)
100
125
1009 TA02
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