Dual 25mV Micropower Op Amp

Posted on Feb 21, 2013

Conventional monolithic micropower op amps with a wide supply voltage range require a large die area and therefore, a large package and footprint. The unconventional LT®6011 dual op amp fits 25mV input precision micropower operation and wide 2.7V to 36V supply range in a tiny new packageits 3mm ½¾ 3mm DFN package is so small it doesnt even have leads. The LT6011 also provides rail-to-rail output swing and utilizes superbeta input transistors to achieve picoampere input currents.

Figure 1 shows the LT6011 applied as a low power Hall sensor amplifier. The magnetic sensitivity of a Hall sensor is proportional to the DC excitation voltage applied across it. With a 1V bias voltage, the sensitivity of this Hall sensor is specified

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