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LTC1540技术文档下载：

LTC1540 - 典型应用图例：

LTC1540 - 封装图解：

LTC1540LTC1540

LINEAR凌力尔特芯片：

LTC1540 - LTC1540是Nanopower Comparator with Reference

LTC1540是LINEAR凌力尔特公司的一款微功率比较器产品，LTC1540是LTC1540是Nanopower Comparator with Reference，本站介绍了LTC1540的封装应用图解、特点和优点、功能等，并给出了与LTC1540相关的LINEAR元器件型号供参考。

LTC1540 - LTC1540是Nanopower Comparator with Reference - 微功率比较器 - 信号调理 - 凌力尔特

LTC1540 - Nanopower Comparator with Reference

LTC1540 - Nanopower Comparator with Reference - Linear Technology（凌力尔特）

功能描述

The LTC1540 is an ultralow power, single comparator with built-in reference. The comparator’s features include less than 0.6μA supply current over the commercial temperature range, a 1.182V ±2% reference, programmable hysteresis and TTL/CMOS outputs that sink and source current. The reference output can drive a bypass capacitor of up to 0.01μF without oscillation.

The comparator operates from a single 2V to 11V supply or a dual ±1V to ±5.5V supply. Comparator hysteresis is easily programmed by using two resistors and the HYST pin. Each comparator’s input operates from the negative supply to within 1.3V of the positive supply. The comparator output stage can continuously source up to 40mA. By eliminating the cross-conducting current that normally occur when the comparator changes logic states, power supply glitches are eliminated.

The LTC1540 is available in the 8-pin MSOP and SO packages. For space limited applications, the LTC1540 is available in a 3mm x 3mm low profile (0.8mm) dual finepitch leadless package (DFN).

特点

Ultralow Quiescent Current: 0.3μA Typ

Reference Output Drives 0.01μF Capacitor

Adjustable Hysteresis

Available in 3mm x 3mm x 0.8mm DFN Package

Wide Supply Range: 2V to 11V

Input Voltage Range Includes the Negative Supply

Reference Output Sources Up to 1mA

TTL/CMOS Compatible Outputs

60μs Propagation Delay with 10mV Overdrive

No Crowbar Current

40mA Continuous Source Current

Pin Compatible with LTC1440, MAX921, MAX931

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)
LTC1540CDD	3x3 DFN-8	C	$2.59	$1.90
LTC1540CDD#PBF	3x3 DFN-8	C	$2.59	$1.90
LTC1540CDD#TR	3x3 DFN-8	C		$1.95
LTC1540CDD#TRPBF	3x3 DFN-8	C		$1.95
LTC1540CMS8	MS-8	C	$2.15	$1.80
LTC1540CMS8#PBF	MS-8	C	$2.15	$1.80
LTC1540CMS8#TR	MS-8	C		$1.86
LTC1540CMS8#TRPBF	MS-8	C		$1.86
LTC1540CS8	SO-8	C	$1.90	$1.60
LTC1540CS8#PBF	SO-8	C	$1.90	$1.60
LTC1540CS8#TR	SO-8	C		$1.66
LTC1540CS8#TRPBF	SO-8	C		$1.66
LTC1540IDD	3x3 DFN-8	I	$3.32	$2.44
LTC1540IDD#PBF	3x3 DFN-8	I	$3.32	$2.44
LTC1540IDD#TR	3x3 DFN-8	I		$2.49
LTC1540IDD#TRPBF	3x3 DFN-8	I		$2.49
LTC1540IMS8	MS-8	I	$3.14	$2.34
LTC1540IMS8#PBF	MS-8	I	$3.14	$2.34
LTC1540IMS8#TR	MS-8	I		$2.39
LTC1540IMS8#TRPBF	MS-8	I		$2.39
LTC1540IS8	SO-8	I	$2.25	$1.85
LTC1540IS8#PBF	SO-8	I	$2.25	$1.85
LTC1540IS8#TR	SO-8	I		$1.91
LTC1540IS8#TRPBF	SO-8	I		$1.91

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