LP2901屬于集成電路（IC）的比較器。由美國(guó)德州儀器公司制造生產(chǎn)的LP2901比較器邏輯比較器系列產(chǎn)品用于根據(jù)以數(shù)字格式表示的信息比較結(jié)果來(lái)生成輸出；身份型比較器指示兩個(gè)輸入是否相同，幅度型比較器還指示兩個(gè)輸入不相同時(shí)哪個(gè)較大。它們不同于比較兩個(gè)模擬輸入幅度的器件，后者稱為線性比較器且單獨(dú)分類。

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

description/ordering information

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.