LTC1843是Ultralow Power Dual Comparators with Reference

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LTC1843 - LTC1843是Ultralow Power Dual Comparators with Reference

LTC1843是Linear公司的一款微功率比较器产品，LTC1843是Ultralow Power Dual Comparators with Reference，本站介绍了LTC1843的封装应用图解、特点和优点、功能等，并给出了与LTC1843相关的凌力尔特元器件型号供参考。

LTC1843 - Ultralow Power Dual Comparators with Reference

LTC1843 - Ultralow Power Dual Comparators with Reference - Linear Technology（凌力尔特）

功能描述

The LTC?1841/LTC1842/LTC1843 are ultralow power dual comparators with built-in reference (LTC1842/LTC1843). The comparators feature less than 5.7μA supply current over temperature, a 1.182V ±1% reference, programmable hysteresis and open-drain outputs that sink current. The reference output can drive a bypass capacitor of up to 0.01μF without oscillation.The LTC1841 operates from a single 2V to 11V supply or a dual ±1V to ±5.5V supply. The LTC1842/LTC1843 operate from a single 2.5V to 11V supply or a dual ?1.25V to ±5.5V supply. The LTC1842/LTC1843 hysteresis is easily programmed by using two resistors and the HYST pin. The comparators? input operates from the negative supply to within 1.3V of the positive supply. The comparators? output stage can typically sink greater than 20mA. By eliminating the cross-conduction current that normally happens when the comparators change logic states, power supply glitches are eliminated.The LTC1841/LTC1842/LTC1843 are available in SO-8 packages.

特点

Ultralow Quiescent Current: 3.5µA Typ

Open-Drain Outputs Typically Sink Greater Than 20mA

Wide Supply Range: (LTC1841)Single: 2V to 11VDual: ±1V to ±5.5V

Input Voltage Range Includes the Negative Supply

Reference Output Drives 0.01μF Capacitor

Adjustable Hysteresis

12μs Propagation Delay with 10mV Overdrive

No Current Spike When Switching

应用

Battery-Powered System Monitoring

Threshold Detectors

Window Comparators

Oscillator Circuits

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC1843CS8	SO-8	C	$1.65	$1.40
LTC1843CS8#PBF	SO-8	C	$1.65	$1.40
LTC1843CS8#TR	SO-8	C		$1.46
LTC1843CS8#TRPBF	SO-8	C		$1.46
LTC1843IS8	SO-8	I	$1.95	$1.60
LTC1843IS8#PBF	SO-8	I	$1.95	$1.60
LTC1843IS8#TR	SO-8	I		$1.66
LTC1843IS8#TRPBF	SO-8	I		$1.66