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Amplifier resolves small differential signals despite 36 V common mode

Milpitas, Calif. — Linear Technology released the LT6106, a high-side current-sense amplifier which can resolve small differential signals from common mode voltages up to 36 V. With 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, eliminating bias current as a source of error. For handling fault conditions, the amp can withstand common mode voltages up to 44 V and can respond to signal changes within 3.5 µsec. The operating temperature range of -40°C to 125°C makes the LT6106 suitable for industrial and automotive applications including power management, motion control and battery charging.

Two external resistors set the amplifier gain, providing control of gain accuracy and drift, power consumption, response time and input/output impedance. The LT6106's SOT-23 package is pin compatible with the LTC6101 and LTC6101HV, providing designers with interchangeable current sense amplifiers for inputs up to 36 V, 60 V or 100 V.

Availability: Now
Pricing: Begins at $0.82 each in 1,000-piece quantities
Data Sheet: LT6106

Linear Technology, 408-432-1900, www.linear.com

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