HV7351K6-G Datasheet, PDF (1/15 Pages) Supertex, Inc – Eight Channel Programmable High Voltage Ultrasound Transmit Beamformer

Supertex inc.
HV7351
Eight Channel Programmable
High Voltage Ultrasound Transmit Beamformer
Features
►► Eight channels with return to zero
►► Up to ±70V output voltage
►► ±3.0A output current
►► Store up to four different patterns
►► Independent programmable delays
►► Single 11x11 QFN-80 package
Application
►► Medical ultrasound imaging
►► NDT, non-destructive testing
►► Arbitrary pattern generator
►► High speed PIN diode driver
General Description
The Supertex HV7351 is an 8-channel programmable high
voltage ultrasound transmit beamformer. Each channel is
capable of swinging up to ±70V with an active discharge back
to 0V. The outputs can source and sink more than 3.0A to
achieve fast output rise and fall times. The active discharge is
also capable of sourcing and sinking 3.0A for a fast return to
ground. The topology of the HV7351 will significantly reduce
the number of I/O logic control lines needed.
Each pulser has four associated 64-bit shift registers for
storing pre-determined transmit patterns and a 10-bit delay
counter for controlling the transmit time. One of four arbitrary
patterns can be transmitted with adjustable delay, depending
on the data loaded into these shift registers and the delay
counter. The delay counter can be clocked up to 200MHz,
allowing incremental delays down to 5ns.
Typical Application Circuit
Tx1
HV7351
8-channel
Tx2
U1
Trigger
Tx3
HV7351
8-channel
U2
t_DELAY1
t_DELAY2
t_DELAY3
Array
Probe
E1
E2
E3
HV7351
8-channel
U16
Tx127
Tx128
Doc.# DSFP-HV7351
NR050213
Trigger
t_DELAY127
t_DELAY128
E127
E128
Supertex inc.
www.supertex.com