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HV230 Datasheet(PDF) 1 Page - Supertex, Inc

Part No. HV230
Description  Low Charge Injection 8-Channel High Voltage Analog Switches with Bleed Resistors
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Maker  SUTEX [Supertex, Inc]
Homepage  http://www.supertex.com
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HV230 Datasheet(HTML) 1 Page - Supertex, Inc

 
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HV230/232
NR011705
Low Charge Injection 8-Channel High Voltage
Analog Switches with Bleed Resistors
Features
❏ HVCMOS® technology for high performance
❏ Very low quiescent power dissipation – 10µA
❏ Output On-resistance typically 22 ohms
❏ Integrated bleed resistors on the outputs
❏ Low parasitic capacitances
❏ DC to 10MHz analog signal frequency
❏ -60dB typical 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
Block Diagram
D
LE
CL
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
8 BIT
SHIFT
REGISTER
LEVEL
SHIFTERS
OUTPUT
SWITCHES
LATCHES
SW0
SW1
SW2
SW3
SW4
SW5
SW6
SW7
VPP
VNN
VDD
RGND
DOUT
DIN
CLK
Applications
❏ Medical ultrasound imaging
❏ Piezoelectric transducer drivers
HV230/HV232
NR032505
General Description
The Supertex HV230 and HV232 are low charge injection
8-channel high-voltage analog switch integrated circuits
(ICs) with bleed resistors. These devices can be used in
applications requiring high voltage switching controlled by
low voltage control signals, such as ultrasound imaging
and printers. The bleed resistors eliminate voltage built up
on capacitive loads such as piezoelectric transducers.
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, this switch combines 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., V
PP/VNN : +50V/–150V, or
+100V/–100V.


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