描述 Description

The LM193, LM293, LM393 and LM393W devices consist of two independent low voltage comparators designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible.

These comparators also have a unique characteristic in that the input common-mode voltage range includes ground even though operated from a single power supply voltage.

The LM393W offers additional ESD robustness of 2 kV HBM on all pins.

特性 Features

? Wide single-supply voltage range or dual supplies: 2?V to 36?V or ±1?V to ±18?V
? Very low supply current (0.45?mA) independent of supply voltage (1?mW/comparator at 5?V)
? Low input bias current: 20?nA typ.
? Low input offset current: ±3?nA typ.
? Low input offset voltage: ±1?mV typ.
? Input common-mode voltage range includes ground
? Low output saturation voltage: 80?mV typ. (Isink?=?4?mA)
? Differential input voltage range equal to the supply voltage
? TTL, DTL, ECL, MOS, CMOS compatible outputs
? Available in DFN8 2x2, MiniSO8, TSSOP8, and SO8 packages
? LM393W with internal ESD protection: 2 kV HBM

簡介

LM293屬于集成電路（IC）的穩(wěn)壓器-線性。由制造生產(chǎn)的LM293穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負(fù)載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個(gè)最小量，并且在工作時(shí)會(huì)將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對于大多數(shù)應(yīng)用而言，雖然這種穩(wěn)壓器的效率低于開關(guān)模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應(yīng)用。