HV2201_11 Datasheet, PDF (1/10 Pages) Supertex, Inc – Low Charge Injection, 8-Channel, Enhanced, High Voltage Analog Switch

Supertex inc.
HV2201
Low Charge Injection, 8-Channel,
Enhanced, High Voltage Analog Switch
Features
►► HVCMOS technology for high performance
►► 8 Channels of high voltage analog switch
►► 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 50MHz analog signal frequency
►► -60dB typical off-isolation at 5.0MHz
►► CMOS logic circuitry for low power
►► Excellent noise immunity
►► Cascadable serial data register with latches
►► Flexible operating supply voltages
Applications
►► Medical ultrasound imaging
►► NDT metal flaw detection
►► Piezoelectric transducer drivers
►► Inkjet printer heads
►► 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 efficient control of high voltage analog signals.
The device is suitable for various combinations of high voltage
supplies, e.g., V_PP/V_NN: +40V/-160V, +100V/-100V, and +160V/-
40V.
Block Diagram
CLK
DIN
8-Bit
Shift
Register
Latches
D
LE
CL
D
LE
CL
D
LE
CL
Level
Shifters
Output
Switches
SW0
SW1
SW2
DOUT
D
LE
CL
D
LE
CL
VDD GND LE CLR
VNN VPP
SW6
SW7
Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: [phone] ● www.supertex.com