Analogue, Mixed Signal, LSI


High-speed quad MOSFET drivers

25 January 2006 Analogue, Mixed Signal, LSI

The MD1812 and the MD1813, two new high-speed quad MOSFET driver ICs from Supertex, are designed to drive N- and P-channel MOSFETs in applications that require high output current for capacitive loads, such as in medical ultrasound imaging. Both ICs feature an auxiliary output driver with a level translator that utilises a proprietary circuit to provide user-defined damping control for return-to-zero applications. The user is able to determine the length of time the ICs stay at zero. The devices provide 6 ns rise and fall times when used with a 1000 pF load. The input stages of both ICs accept logic input signals of 1,2 to 5 V amplitude, allowing for low power consumption and fast response time. Their output stages are capable of producing peak currents of up to ±p2 A. The MD1813 is additionally configured to accept differential input signals. Both are available in 16-lead QFN packages.



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