LT1029| Datasheet

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LT1029/LT1029A 5V Bandgap Reference

FEATURES

DESCRIPTIO

0.2% Output Tolerance 0.6 Shunt Impedance 700uA to 10mA Operating Current Pin Compatible with LM136-5 20ppm/ C Max Drift Output Voltage Trim does not Affect Drift Can be Used as Positive or Negative Reference

The LT 1029 is a 5V bandgap reference intended for use in the shunt or "Zener" mode, allowing it to be used as either a positive or negative reference. The output is pretrimmed to 0.2% accuracy with 20ppm/ C maximum temperature drift. A trim pin allows additional output adjustment for even more precise output voltage. Operating current range for the LT1029 is 700uA to 10mA. Extremely low dynamic impedance allows excellent output regulation even with fluctuating operating current. The LT1029 will replace an LM136-5 or LM336-5 and simplify circuits using the "minimum temperature coefficient" trim network. The LT1029 does not require this special network to meet its temperature drift specification; these application network components are simply removed. If output trimming is required for initial accuracy, the diodes in the trim network should be replaced with jumpers.
, LTC and LT are registered trademarks of Linear Technology Corporation.

APPLICATIO S

A-to-D and D-to-A Converters Precision Regulators Precision Current Sources V to F and F to V Converters

TYPICAL APPLICATIO
15V R1 10k

5.015 5.010
5V LT1029

OUTPUT VOLTAGE (V)

5.005 5.000 4.995 4.990 4.895 50

LT1029 5V R2 10k 15V
LT1029 TA01

25

U
Output Voltage Drift
0 25 50 75 TEMPERATURE ( C) 100 125
LT1029 TA02

U

U

1029afa

1

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LT1029 DATASHEET