LM319屬于集成電路（IC）的比較器。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的LM319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)果來生成輸出；身份型比較器指示兩個輸入是否相同，幅度型比較器還指示兩個輸入不相同時哪個較大。它們不同于比較兩個模擬輸入幅度的器件，后者稱為線性比較器且單獨分類。

DESCRIPTION

These products are precision high speed dual comparators designed to operate overa wide range of supply voltages down to a single 5V logic supply and ground and have low input currents and high gains.

The open collector of the output stage makes compatible with TTL as well as capable of driving lamps and relays at currents up to 25mA.

Although designed primarily for applications requiring operation from digital logic supplies, are fully specified for power supplies up to ±15V.

They feature faster response than the LM111 at the expense of higher power dissipation. However, the high speed, wide operating voltage range and low package count make the much more versatile.

■ TWO INDEPENDENT COMPARATORS

■ OPERATES FROM A SINGLE +5V SUPPLY

■ TYPICALLY 80ns RESPONSE TIME AT ±15V

■ MINIMUM FAN-OUT OF 2 EACH SIDE

■ MAXIMUM INPUT CURRENT OF 1μA OVER OPERATING TEMPERATURE RANGE

■ INPUTS AND OUTPUTS CAN BE ISOLATED FROM SYSTEM GROUND

■ HIGH COMMON-MODE SLEW RATE