LM139集成電路（IC）的比較器規(guī)格書(shū)PDF中文資料

LM139屬于集成電路（IC）的比較器。由德州儀器制造生產(chǎn)的LM139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(chēng)為線(xiàn)性比較器且單獨(dú)分類(lèi)。

1 Features

? NEW LM339B and LM2901B

? Improved specifications of B-version

– Maximum rating: up to 38 V

– ESD rating (HBM): 2k V

– Low input offset: 0.37 mV

– Low input bias current: 3.5 nA

– Low supply-current: 200 μA per comparator

– Faster response time of 1 μsec

– Extended temperature range for LM339B

? B-version is drop-in replacement for LM239,

LM339 and LM2901, A and V versions

? Common-mode input voltage range includes

ground

? Differential input voltage range equal to maximumrated

supply voltage: ±38 V

? Low output saturation voltage

? Output compatible with TTL, MOS, and CMOS

? For single version, see the TL331B

? For dual version, see the LM393B or LM2903B

2 Applications

? Vacuum robot

? Single phase UPS

? Server PSU

? Cordless power tool

? Wireless infrastructure

? Applicances

? Building automation

? Factory automation & control

? Motor drives

? Infotainment & cluster

3 Description

The LM339B and LM2901B devices are the

next generation versions of the industry-standard

LM339 and LM2901 comparator family. These next

generation B-version comparators feature lower offset

voltage, higher supply voltage capability, lower supply

current, lower input bias current, lower propagation

delay, and improved 2 kV ESD performance and

input ruggedness through dedicated ESD clamps.

The LM339B and LM2901B can drop-in replace the

LM239, LM339 and LM2901, for both A and V

grades.

All devices consist of four independent voltage

comparators that are designed to operate from a

single power supply over a wide range of voltages.