LT1009IS8(Rev_A) Просмотр технического описания (PDF) - Linear Technology

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производитель

LT1009IS8
(Rev.:Rev_A)

2.5V Reference

Linear Technology 

LT1009 Series

2.5V Reference

FEATURES

s Maximum Initial Tolerance: 0.2%

s Guaranteed Temperature Stability

s Maximum 0.6Ω Dynamic 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

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