|
|
PDF HV732DB1 Data sheet ( Hoja de datos )
| Número de pieza | HV732DB1 | |
| Descripción | Integrated Ultrasound Pulser Demo Board | |
| Fabricantes | Supertex | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de HV732DB1 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
|
No Preview Available !
HV732DB1
High Speed ±100V 2A
Integrated Ultrasound Pulser Demo Board
Introduction
The HV732 is a complete, high-speed, high voltage, ultrasound
transmitter pulser. This integrated high performance circuit is
in a single 7x7x0.9mm 44-lead, multi-die, QFN package.
The HV732 can deliver up to ±2A source and sink current to
a capacitive transducer. It is designed to be used as a high
voltage pulser or transmitter in medical ultrasound imaging
and ultrasound material NDT applications. It can also be
used for other piezoelectric or capacitive MEMS transducers
as a high voltage driver, or for ATE systems and pulse signal
generators as a signal source.
The HV732 has built-in damping circuits to generate fast
return-to-zero waveforms. It also has built-in, high voltage
MOSFET gate-clamping functions to quickly change the
output waveform amplitude.
HV732 circuitry consists of controller logic circuits, level
translators, a MOSFET driving buffer, gate-clamp circuits
and MOSFET transistors as the high current and high
voltage output stage. There are two pairs of MOSFETs in
the output stage. Each pair is consists of a P-channel and an
N-channel MOSFET. In each pair of MOSFETs, the P-FET
and N-FET are designed to have the same impedance and
can provide peak currents of over 2 amps. In the MOSFET
gate-driver circuits, the output of the driver can swing from 0
to 9V~12V on PDR and NDR pins, and the P-channel damping
output swings from 0V to –5V on the DMPO pin. HV732 can
generate ±100V NRZ, RZ and PW pulses and low voltage
CW waveforms. The up frequency limit of this IC is as high
as 35MHz to 40MHz dependent on the load capacitance.
Designing a Pulser with HV732
This demo board data sheet describes how to use the
HV732DB1 to generate the basic high voltage pulses for an
ultrasound transmitter with a RTZ feature.
The HV732 circuit uses the capacitor-coupling method in its
level translators, except for the one driving the N-channel
damping MOSFET, which is DC coupled. There are three
10nF 200V ceramic capacitors connecting the driver output
to the MOSFET’s gate for the coupling purposes.
The input stage of the HV732 has high-speed level
translators that are able to operate with logic signals of 1.8V,
2.5V or 3.3V. In this demo board, the control logic signals
are connected to a high-speed ribbon cable connector. The
control signal logic-high voltage should be same as the VCC
voltage of the demo board, and the logic-low should be
referenced to GND.
The HV732DB1 output waveforms can be displayed using
an oscilloscope directly by connecting the scope probe to
the test point HVOUT and GND. The soldering jumper R1 can
select whether or not to connect the on-board equivalent-
load, a 220pF, 200V capacitor, parallel with a 1kΩ, 1W
resistor. A coaxial cable can also be used to connect the
user’s transducer to be driven and evaluated with this HV732
transmitter pulser directly and easily.
Schematic Block Diagram
+1.8V to 3.3V
+9.0V to 12V
+100V 0 to -100V
Logic
Control
VLL AVDD VDD
EN
PDR P VGATE SUB
VPP
TXP
PIN
NIN
DAMP
CLAMP
Supertex
HV732
TXN
OUTN
OUTP
RGNDP
VLN
AGND GND
RGNDN
NDR NGATE DMPO DMPI VNN
-5.0V
0 to -100V
HVOUT
CL
220pF
HVOUT
RL
1K
1
Free Datasheet http://www.datasheet4u.com/
1 page  
Input and Output Waveform Examples
HV732DB1
5
Free Datasheet http://www.datasheet4u.com/
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet HV732DB1.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| HV732DB1 | Integrated Ultrasound Pulser Demo Board | Supertex |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |