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HV20320 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 HV20320
部品説明 (HV2xx) Low Charge Injection 8-Channel High Voltage Analog Switches
メーカ Supertex
ロゴ Supertex ロゴ 

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HV20320 Datasheet, HV20320 PDF,ピン配置, 機能
HV220/HV20220/HV20320
Low Charge Injection
8-Channel High Voltage Analog Switches
Features
HVCMOS® technology for high performance
Very low quiescent power dissipation – 10µA
Output on-resistance typically 22 ohms
Low parasitic capacitances
DC to 10MHz analog signal frequency
www.DataShee-t640Ud.cBomtypical output off isolation at 5MHz
CMOS logic circuitry for low power
Excellent noise immunity
On-chip shift register, latch and clear logic circuitry
Flexible high voltage supplies
Applications
Medical ultrasound imaging
Piezoelectric transducer drivers
General Description
These devices are low charge injection 8-channel high-voltage
analog switch integrated circuits (ICs) intended for use in
applications requiring high voltage switching controlled by low
voltage control signals, such as ultrasound imaging and print-
ers. Input data is shifted into an 8-bit shift register which can
then be retained in an 8-bit latch. To reduce any possible clock
feed-through noise, Latch Enable Bar (LE) should be left high
until all bits are clocked in. Using HVCMOS technology, these
switches combine high voltage bilateral DMOS switches and
low power CMOS logic to provide efficient control of high voltage
analog signals.
These ICs are suitable for various combinations of high voltage
supplies, e.g., VPP/VNN : +50V/–150V, or +100V/–100V.B
Block Diagram
DIN
CLK
LATCHES
D
LE
CL
LEVEL
SHIFTERS
OUTPUT
SWITCHES
SW0
D
LE SW1
CL
D
LE SW2
CL
8-Bit
Shift
Register
D
LE
CL
D
LE
CL
SW3
SW4
D
LE SW5
CL
DOUT
D
LE
CL
SW6
D
LE SW7
CL
VDD LE CL
VNN VPP

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