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HV2321

更新时间: 2024-09-21 03:56:07
品牌 Logo 应用领域
超科 - SUPERTEX 开关高压
页数 文件大小 规格书
8页 712K
描述
Low Charge Injection, 8-Channel, Unipolar, Negative High Voltage, Analog Switch With Bleed Resistors

HV2321 数据手册

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HV2321  
Low Charge Injection, 8-Channel, Unipolar,  
Negative High Voltage, Analog Switch With Bleed Resistors  
Features  
Low on-resistance, 14Ω max.  
General Description  
The Supertex HV2321 is a low charge injection, 8-channel,  
unipolar, negative high voltage, analog switch integrated circuit  
(IC) with bleed resistors. The device can be used in applications  
requiring high voltage switching controlled by low voltage signals,  
such as NDT metal flaw detection, medical ultrasound imaging,  
piezoelectric transducer drivers, and printers. The bleed resistors  
eliminate voltage built up on capacitive loads such as piezoelectric  
transducers.  
Integrated bleed resistors on the outputs  
3.3 or 5.0V CMOS input logic level  
20MHz data shift clock frequency  
Very low quiescent power dissipation -10µA  
Low parasitic capacitance  
DC to 10MHz analog signal frequency  
-60dB typical off-isolation at 5.0MHz  
CMOS logic circuitry for low power  
Excellent noise immunity  
Data is input into an 8-bit shift register and then retained in an 8-bit  
latch. To reduce any possible clock feed-through noise, the latch  
enable bar should be left high until all bits are clocked in. Data is  
clocked in during the rising edge of the clock.  
Cascadable serial data register with latches  
Applications  
Using HVCMOS technology, this device combines high voltage  
bilateral DMOS switches and low power CMOS logic to provide  
efficient control of high voltage analog signals.  
NDT metal flaw detection  
Medical ultrasound imaging  
Piezoelectric transducer drivers  
Inkjet printer heads  
Optical MEMS modules  
Block Diagram  
LEVEL  
SHIFTERS  
OUTPUT  
SWITCHES  
LATCHES  
D
LE  
SW0  
SW1  
SW2  
CLR  
D
LE  
CLK  
CLR  
D
8-BIT  
LE  
SHIFT  
DIN  
CLR  
REGISTER  
DOUT  
D
SW6  
SW7  
LE  
CLR  
D
LE  
CL  
VDD GND  
LE CLR  
VNN VPP  
RGND  

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