Click to expand full text
co r----------------------------------------------------------------------------,
CD
C")
.~.....
CO
~National
~ Semiconductor
CD
N
PRELIMINARY
:E
.........I. LM168/LM268/LM368 Precision Voltage Reference
C.C,.OD..
~ General Description
Features
The LM16B/LM36B are precision, monolithic, temperaturecompensated voltage references. The LM16B makes use of thin-film technology enhanced by the discrete laser trimming of resistors to achieve excellent Temperature coeffi· cient (Tempco) of VOUT (as low as 5ppml"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 electromigration in the trimmed area.