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LM139/LM139A, LM339
Single Supply Quad Comparators
Features
• Input common mode voltage range includes ground
• Wide single supply voltage range—2V to 36V
• Output compatible with TTL, DTL, ECL, MOS and
CMOS logic systems
• Very low supply current drain (0.8 mA) independent of
supply voltage
Description
These devices offer higher frequency operation and faster
switching than can be had from internally compensated
quad op amps. Intended for single supply applications, the
Darlington PNP input stage allows them to compare voltages
that include ground. The two stage common-emitter output
circuit provides gain and output sink capacity of 3.2 mA at
an output level of 400 mV. The output collector is left open,
permitting the designer to drive devices in the range of 2V to
36V.
They are intended for applications not needing response time
less than 1
ms,
but demanding excellent op amp input param-
eters to offset voltage, current and bias current, to ensure
accurate comparison with a reference voltage.
Rev. 1.0.0
ETC [ ETC ]
