Datasheet > HV748

HV748

更新时间： 2024-02-17 03:30:24

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
7页	582K
描述
Quad High Speed 【75V 1.25A Ultrasound Pulser

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HV748 数据手册

HV748

Quad High Speed 7ꢀV ꢁ1.ꢀA Ultrasound Pulser

Features

► HVCMOS technology for high performance

► High density integration ultrasound transmitter

► 0 to ±±7V output ꢀoltage

► ±ꢁ1.75 source and sink current in Pulse mode

► ±ꢂ00m5 source and sink current in CW mode

► Up to .0MHz operating frequency

► Matched delay times

► ꢁ1.V to 710V CMOS logic interface

► Built-in output drain bleed resistors

General Description

The Supertex HV±ꢂ8 is a four-channel, monolithic, high

ꢀoltage, high speed pulse generator1 It is designed for portable

medical ultrasound applications1 This high ꢀoltage and high

speed integrated circuit can also be used for piezoelectric,

capacitiꢀe or MEMS sensing in ultrasonic nondestructiꢀe

detection and sonar ranger applications1

The HV±ꢂ8 consists of a controller logic interface circuit, leꢀel

translators, MOSFET gate driꢀes and high current power P-

channel and N-channel MOSFETs as the output stage for

each channel1

The output stages of each channel are designed to proꢀide

peak output currents oꢀer ±ꢁ185 for pulsing, when in mode

ꢂ, with up to ±±7 ꢀolt swings1 When in mode ꢁ, all the output

stages drop the peak current to ±ꢂ00m5 for low-ꢀoltage CW

mode operation to decrease the power consumption of the

IC1 The P and N type of power FETs gate driꢀers are supplied

by two ﬂoating 910VDC power supplies reference to V_PPand

V 1 This direct coupling topology of the gate driꢀers not only

el^Nim^Ninates two high ꢀoltage capacitors per channel, but also

makes the PCB layout easier1

Application

► Portable medical ultrasound imaging

► Piezoelectric transducer driꢀers

► NDT ultrasound transmission

► Pulse waꢀeform generator

Typical Application Circuit

V_PP- 9V

Cꢂ

+ꢁ18 to 313V +9V

+±7V

0 to +±7V

V_PP

V_DD

Cꢁ

V_LL

V_SUBV_PF

SUB

OTP

RGND

TXPꢁ

TXNꢁ

EN_PWR

MC0

MCꢁ

R_Pꢁ

Level

Translator

P-Driver

PINꢁ

Dꢁ

+ꢁ18 to 313V

Logic

HV_OUT

ꢁ

Level

Translator

N-Driver

NINꢁ

R_Nꢁ

Xꢁ

RGND

ꢁ of ꢂ Channels

V_NN

V_NF

G_REF

V_SS

HV748

C±

V_NN+ 9V

0 to -±7V

12 3 4 5 6 7

中文翻译

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