Datasheet Microchip MD2134 — Datenblatt

Supertex inc. MD2134 High Speed Ultrasound Beamforming Source Driver
Features в–єв–є Multiple-level ultrasound pulser
в–єв–є Fast switching current source for push-pull topology
в–єв–є 250MHz maximum frequency, 4.0ns input to output
delay
в–єв–є 15 independent programmable output level registers
в–єв–є Pulse amplitude modulation (PAM) with 8-bit resolution
в–єв–є 8-bit apodization DAC for peak output current via SPI
в–єв–є Very low second order harmonic distortion
в–єв–є Picoseconds time-jitter from input to output
в–єв–є Fast SPI write and read-back of level & DAC registers
в–єв–є +5.0V power supply, 2.5V CMOS logic interface
в–єв–є Drives DN2625 MOSFETs output up to 230VP-P
в–єв–є Programmable aperture windowing General Description The MD2134 is a high-speed source driver for use in a pulsed
current waveform generator. This programmable, fast, arbitrary
current level driver is designed for medical ultrasound imaging
beamforming applications. It also can be used in HIFU, NDT
ultrasound and other instrument applications. The MD2134 consists of CMOS digital logic input circuits, an
eight-bit current DAC for aperture weighting amplitude control,
and a programmable 15-level pulse amplitude modulation (PAM)
current-source that does not include a zero level. The fast current
sources are constructed with current-switch array, controlled by
the LV0~LV15 level-register as the waveform data points. Four …