Current sense amplifier for industrial use

30 May 2007 Analogue, Mixed Signal, LSI

Linear Technology's LT6106, a high side current sense amplifier that can resolve small differential signals from common mode voltages up to 36 V, is suitable for industrial and automotive applications such as power management, motion control and battery charging with an operating temperature range of -40 to 125°C.

With only 250 μV (max) of input offset voltage and a full-scale differential input of 500 mV, the LT6106 offers a dynamic range of 2000:1. The input bias current is guaranteed to be no more than 40 nA, essentially eliminating bias current as a source of error. For handling fault conditions, the device can withstand common mode voltages up to 44 V and can respond to signal changes within 3,5 μs.

Simple to use, the two external resistors set the amplifier gain, providing control of gain accuracy and drift, power consumption, response time and input/output impedance.

It comes in a low profile 1 mm SOT-23 package.

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