MD1711

Supertex inc. MD1711 High Speed, Integrated Ultrasound Driver IC Features ►► Drives two ultrasound transducer channels ►► Generates 5-level waveform ►► Drives 12 high voltage MOSFETs ►► ±2.0A source and sink peak current ►► Up to 20MHz output frequency ►► 12V/ns slew rate ►► ±3ns matched delay times ►► Second harmonic is less than -40dB ►► Two separate gate drive voltages ►► 1.8 to 3.3V CMOS logic interface Applications ►► Medical ultrasound imaging ►► Piezoelectric transducer drivers ►► Non-Destructive Testing (NDT) ►► Metal flaw detection ►► Sonar transmitter General Description The Supertex MD1711 is an IC for a two-channel, 5-level, high voltage and high speed transmitter driver. It is designed for medical ultrasound imaging applications, but can also be used for metal flaw detection, Non-Destructive Testing (NDT), and for driving piezoelectric transducers. The MD1711 is a two-channel logic controller circuit with low impedance MOSFET gate drivers. There are two sets of control logic inputs, one for channel A and one for channel B. Each channel consists of three pairs of MOSFET gate drivers. These drivers are designed to match the drive requirements of the Supertex TC6320. The MD1711 drives six TC6320s. Each pair consists of an N-channel and a P-channel MOSFET. They are designed to have the same impedance and can provide peak currents of over 2.0amps. Typical Application Circuit +10V FB 0.1µF EN SEL POSA / POS1A NEGA / NEG1A +5.0V +10V -10V 0.22µF 0.22µF 0.22µF ...