Datasheet > HV758DB1

HV758DB1

更新时间： 2024-11-11 03:11:27

品牌	Logo	应用领域
超科 - SUPERTEX		脉冲脉冲发生器
页数	文件大小	规格书
6页	755K
描述
HV758 【90V 2.2A Ultrasound Pulser Demo Board

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HV758DB1 数据手册

HV758DB1

HV758 ±±9V ꢀ2ꢀA Ultrasound Pulser Demo Board

Introduction

Designing a Pulser with HV758

The HV758 is a monolithic 4-channel, high-speed, high

voltage, ultrasound transmitter pulser. This integrated, high

performance circuit is in a single, 8x8mm, 64-Ball FCBGA

package.

This demo board data sheet describes how to use the

HV758DB1 to generate the basic high voltage pulse

waveform as an ultrasound transmitting pulser.

The HV758 circuit uses the DC coupling method in all

level translators. There are no external coupling capacitors

needed. The V and V rail voltages can be changed

rather quickly, c^Po^Pmpared^Nt^No a high voltage capacitor gate-

coupled driving pulser. This direct coupling topology of the

gate drivers not only saves two high voltage capacitors per

channel, but also makes the PCB layout easier.

The HV758 can deliver up to a 2.2A source and sink

current to a capacitive transducer. It is designed for

medical ultrasound imaging and ultrasound material NDT

applications. It can also be used as a high voltage driver

for other piezoelectric or capacitive MEMS transducers, or

for ATE systems and pulse signal generators as a signal

source.

The input stage of the HV758 has high-speed level

translators that are able to operate with logic signals of

1.2V to 5.0V and are optimized at 2.5V to 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 the same as the V_CCvoltage

of the demo board, and the logic-low should be referenced

to GND.

HV758’s circuitry consists of controller logic circuits, level

translators, gate driving buffers and a high current and high

voltage MOSFET output stage. The output stages of each

channel are designed to provide peak output currents over

2.5A for pulsing, when MC0 = 1 and MC1 = 1, with up

to 90V swings. When in mode 1, all the output stages

drop the peak current to 580mA for low-voltage CW mode

operation to save power. Two ﬂoating 9VDC power supplies

referenced to V_PPand V_NNsupply the P- and N-type power

FET gate drivers. The upper limit frequency of the pulser

waveform is 20MHz depending on the load capacitance.

One HV758 can also be used as four damping circuits to

generate fast return-to-zero waveforms by working with

another HV758 as four pulsing circuits. It also has built-in,

under-voltage and over-temperature protection functions.

The HV758DB1 output waveforms can be displayed using

an oscilloscope directly by connecting the scope probe to

the test point TX1 to 4 and GND. The soldering jumper can

select whether or not to connect the on-board equivalent-

load, a 330pF, 200V capacitor, parallel with a 2.5kΩ, 1W

resistor. Also, a coaxial cable can be used to connect the

user’s transducer to easily drive and evaluate the HV758

transmitter pulser.

Typical Application Circuit

-10V

+1.8 to 3.3V

+10V

+90V

0 to +90V

V_LL

V_SUB

V_PF

V_PP

V_DD

SUB

OTP

EN_PWR

MC0

MC1

RGND

R_P1

Level

Translator

P-Driver

N-Driver

TXP1

TXN1

PIN1

HVout1

+1.8 to 3.3V

Logic

Level

Translator

NIN1

R_N1

HV758

1 of 4 Channels

RGND

V_NF

V_NN

G_REF

V_SS

V_NN+10V

0 to -90V

12 3 4 5 6

中文翻译

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与HV758DB1相关器件

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HV758FB	SUPERTEX	获取价格	Quad High Speed 【90V 2.2A Ultrasound Pulser
HV758FB-G	SUPERTEX	获取价格	Quad High Speed 【90V 2.2A Ultrasound Pulser
HV7620	SUPERTEX	获取价格	40MHz, 32-Channel Serial to Parallel Converter with Push-Pull Outputs
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HV7620_13	SUPERTEX	获取价格	40MHz, 32-Channel Serial to Parallel Converter with Push-Pull Outputs
HV7620DG	SUPERTEX	获取价格	40MHz, 32-Channel Serial to Parallel Converter with Push-Pull Outputs
HV7620PG	SUPERTEX	获取价格	40MHz, 32-Channel Serial to Parallel Converter with Push-Pull Outputs
HV7620PG-G	SUPERTEX	获取价格	40MHz, 32-Channel Serial to Parallel Converter with Push-Pull Outputs
HV7620XW	SUPERTEX	获取价格	40MHz, 32-Channel Serial to Parallel Converter with Push-Pull Outputs
HV7708DG	ETC	获取价格	Interface IC

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