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Supertex - Ultrasound RTZ Pulser

Numéro de référence HV7331
Description Ultrasound RTZ Pulser
Fabricant Supertex 
Logo Supertex 





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HV7331 fiche technique
Supertex inc.
HV7331
Four Channel, High Speed ±70V 2.0A
Ultrasound RTZ Pulser
Features
HVCMOS technology for high performance
High density integrated ultrasound transmitter
0 to ±70V output voltage
±2.0A source and sink minimum pulse current
Up to 20MHz operation frequency
±2.5ns matched delay times
2.5 to 5.0V CMOS logic interface
Built-in output drain diode and bleed resistors
CW/RTZ Doppler quick switching
Two damping mode options
Applications
Portable medical ultrasound imaging
Piezoelectric transducer drivers
NDT ultrasound transmission
Pulse waveform generator
General Description
The Supertex HV7331 is a four-channel, monolithic, high voltage,
high speed pulse generator with built in fast return to zero damping
FETs. This high voltage and high-speed integrated circuit is
designed for portable medical ultrasound imaging devices, and can
also be used for NDT applications.
The HV7331 consists of a controller logic interface circuit, level
translators, MOSFET gate drives, and high current power P-channel
and N-channel MOSFETs as the output stage for each channel.
The peak output currents of each channel are guaranteed to be
over 2.0A with up to a ±70V pulse swing. The integrated regulators
for the gate drivers not only saves two floating voltage supplies, but
also makes the PCB layout easier. The split common source for
the P or N damping MOSFETs provide pulse or CW Doppler mode
quick switch-over for cost and power savings.
Typical Application Circuit
+2.5 to 3.3V +5.0V
+5.0 to +70V
EN
LR
CW/RTZ
PIN1
NIN1
AGND
Doc.# DSFP-HV7331
B011513
VLL
VDD
CPF VPP
VPP
VPF
LRP
VSS
VPP
RGND
Logic
& Level
Translator
VPF
1 of 4-Channels Shown
VNF
VNN RGND
VGN
VNN
RGN
RGP
SUB
VGP
VNF
DGND VSS
VSUB
VDD
LRN
CNF
VNN
-5.0V
-5.0 to -70V
VGP
VGN
RGND
HVOUT
TX1
CGP
RGP
CGN
RGN
+VCW
-VCW
CW/RTZ
Supertex inc.
www.supertex.com

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