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LM368 Datasheet

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  • National Semiconductor [LM368-2.5 Precision Voltage Referen...

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LM368-2 5 Precision Voltage Reference
December 1994
LM368-2 5 Precision Voltage Reference
General Description
The LM368-2 5 is a precision monolithic temperature-com-
pensated voltage reference The LM368-2 5 makes use of
thin-film technology enhanced by the discrete laser trim-
ming of resistors to achieve excellent Temperature coeffi-
cient (Tempco) of V
OUT
(as low as 11 ppm C) along with
tight initial tolerance (as low as 0 02%) The trim scheme is
such that individual resistors are cut open rather than being
trimmed (partially cut) to avoid resistor drift caused by elec-
tromigration in the trimmed area The LM368-2 5 also pro-
vides excellent stability vs changes in input voltage and
output current The output is short circuit proof A trim pin is
made available for fine trimming of V
OUT
or for obtaining
intermediate values without greatly affecting the Tempco of
the device
Features
Y
Y
Y
Y
Y
Y
Y
Y
400
mA
operating current
Low output impedance
Excellent line regulation ( 0001% V typical)
Single-supply operation
Externally trimmable
Low temperature coefficient
Excellent initial accuracy (0 02% typical)
Best reference available for low-voltage operation
(V
S
e
5V V
REF
e
2 500V)
Connection Diagram
Metal Can Package (TO-5)
TL H 8446 鈥?1
Top View
case connected to V
b
Order Number LM368H-2 5 LM368YH-2 5
See NS Package Number H08C
Typical Applications
Low Voltage Reference
TL H 8446 鈥?2
C
1995 National Semiconductor Corporation
TL H 8446
RRD-B30M115 Printed in U S A

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