LTC6103 Dual High Voltage, High Side Current Sense Amplifier

The LTC6103 is a versatile, high voltage, high side, dual current sense amplifier. The two internal amplifiers are independent except that they share the same V– terminal. Design flexibility is provided by the excellent device characteristics: 450µV maximum offset, and only 275µA of current consumption (typical at 12V) for each amplifier. The LTC6103 operates on supplies from 4V to 60V.

The LTC6103 monitors current via the voltage across an external sense resistor (shunt resistor). Internal circuitry converts input voltage to output current, allowing for a small sense signal on a high common mode voltage to be translated into a ground referenced signal. Low DC offset allows the use of a small shunt resistor and large gain-setting resistors. As a result, power loss in the shunt is minimal.

The wide operating supply range and high accuracy make the LTC6103 ideal for an extensive variety of applications from automotive to industrial and power management. The fast response makes the LTC6103 the perfect choice for load current warnings and shutoff protection control. With very low supply current, the LTC6103 is suitable for power sensitive applications. The LTC6103 is available in an 8-lead MSOP package

产品特点 Features

Two Independent Current Sense Amplifiers
Wide Supply Range: 4V to 60V, 70V Absolute Maximum
Low Offset Voltage: 450µV Maximum
Fast Response: 1µs Response Time
Gain Configurable with External Resistors
Low Input Bias Current: 170nA Maximum
PSRR: 110dB Minimum (6V to 60V)
Output Current: 1mA Maximum
Low Supply Current: 275µA per Amplifier, VS = 12V
Specified for –40°C to 125°C Temperature Range
Available in an 8-lead MSOP Package

封装

应用

Current Shunt Measurement
Battery Monitoring
Remote Sensing
Power Management
High Voltage Level Translator

典型应用图

参数

LTC6103 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC6103CMS8#PBF	MSOP	8	C	$2.38	$1.66
LTC6103CMS8#TRPBF	MSOP	8	C		$1.72
LTC6103HMS8#PBF	MSOP	8	H	$3.09	$2.16
LTC6103HMS8#TRPBF	MSOP	8	H	$3.15	$2.22
LTC6103IMS8#PBF	MSOP	8	I	$2.73	$1.91
LTC6103IMS8#TRPBF	MSOP	8	I		$1.97

LTC6103 数据手册及相关资料下载

数据手册(英文) : LTC6103 - Dual High Voltage, High Side Current Sense Amplifier.PDF
设计要点 (中文) : DN407 - 双通道电流检测放大器简化了 H 桥负载监视.PDF
可靠性数据 : R503 Reliability Data .PDF
产品选型卡 : Precision High Side Current Sense Amplifiers.PDF
LT Journal : May 2005 - Finally, High Voltage Current Sensing Made Easy.PDF