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Ultra-Low Power Quad Comparator

 

The LP239, LP339, LP2901 are low-power quadruple differential comparators. Each device consists of four
independent voltage comparators designed specifically to operate from a single power supply and typically to
draw 60-μA drain current over a wide range of voltages. Operation from split power supplies also is possible
and the ultra-low power-supply drain current is independent of the power-supply voltage.
Applications include limit comparators, simple analog-to-digital converters, pulse generators, squarewave
generators, time-delay generators, voltage-controlled oscillators, multivibrators, and high-voltage logic gates.
The LP239, LP339, LP2901 were designed specifically to interface with the CMOS logic family. The ultra-low
power-supply current makes these products desirable in battery-powered applications.
The LP239 is characterized for operation from −25°C to 85°C. The LP339 is characterized for operation from
0°C to 70°C. The LP2901 is characterized for operation from −40°C to 85°C.

Wide Supply-Voltage Range . . . 3 V to 30 V
Ultralow Power Supply Current Drain . . . 60 μA Typ
Low Input Biasing Current . . . 3 nA
Low Input Offset Current . . . ±0.5 nA
Low Input Offset Voltage . . . ±2 mV
Common-Mode Input Voltage Includes Ground
Output Voltage Compatible With MOS and CMOS Logic
High Output Sink-Current Capability (30 mA at VO = 2V)
Power Supply Input Reverse-Voltage Protected
Single-Power-Supply Operation
Pin-for-Pin Compatible With LM239, LM339,LM2901