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| HV2201 Datasheet, PDF (1/9 Pages) Supertex, Inc – Low Charge Injection 8-Channel Enhanced High Voltage Analog Switch | |||
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Supertex inc.
HV2201
Initial Release
Low Charge Injection 8-Channel
Enhanced High Voltage Analog Switch
Features
⺠HVCMOS technology for high performance
⺠8 Channels of high voltage analog switch
⺠3.3V or 5V CMOS input logic level
⺠20MHz data shift clock frequency
⺠Very low quiescent power dissipation-10µA
⺠Low parasitic capacitance
⺠DC to 10MHz analog signal frequency
⺠-60dB typical off-isolation at 5MHz
⺠CMOS logic circuitry for low power
⺠Excellent noise immunity
⺠Cascadable serial data register with latches
⺠Flexible operating supply voltages
Applications
⺠Medical ultrasound imaging
⺠NDT metal ï¬aw detection
⺠Piezoelectric transducer drivers
⺠Inkjet printer heads
⺠Optical MEMS modules
General Description
The Supertex HV2201 is a low charge injection, 8-channel,
high voltage analog switch integrated circuit (IC). The
device can be used in applications requiring high voltage
switching controlled by low voltage control signals, such as
medical ultrasound imaging, piezoelectric transducer drivers,
and printers. The HV2201 is an enhanced version of the
HV20220.
Input data is shifted into an 8-bit shift register that can then
be 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. Using HVCMOS technology, this device
combines high voltage bilateral DMOS switches and low
power CMOS logic to provide efï¬cient control of high voltage
analog signals.
The device is suitable for various combinations of high
voltage supplies, e.g., VPP/VNN: +40V/-160V, +100V/-100V,
and +160V/-40V.
Block Diagram
LATCHES
D
LE
CL
LEVEL
SHIFTERS
OUTPUT
SWITCHES
SW0
D
CLK
LE
CL
SW1
8-BIT
D
SHIFT
LE
DIN
REGISTER
CL
SW2
DOUT
D
LE
CL
SW6
D
LE
SW7
CL
VDD GND
LE CLR
VNN VPP
NR032106
· · · · Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: (408) 222-8888 FAX: (408) 222-4895 www.supertex.com
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