HV2801 Datasheet, PDF (1/9 Pages) Supertex, Inc – Low Charge Injection 32-Channel High Voltage Analog Switch

Supertex inc.
Low Charge Injection 32-Channel
High Voltage Analog Switch
HV2801
Features
►►32-Channel high voltage analog switch
►►2:1 Multiplexer / Demultiplexer
►►3.3V or 5.0V CMOS input logic level
►►20MHz data shift clock frequency
►►HVCMOS technology for high performance
►►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 HV2801 is a low charge injection 32-channel high
voltage analog switch integrated circuit (IC) intended for use in
applications requiring high voltage switching controlled by low
voltage control signals, such as medical ultrasound imaging,
piezoelectric transducer driver, and printers.
Input data are shifted into a 32-bit shift register that can then be
retained in a 32-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 are 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
Doc.# DSFP-HV2801
NR013113
CLK
DIN
DOUT
32-Bit
Shift
Register
VDD GND
Latches
D
LE
CLR
Level _Output
Shifters _Switches
D
LE
CLR
D
LE
CLR
D
LE
CLR
SW0
Y01
SW1
SW2
Y23
SW3
D
LE
CLR
D
LE
CLR
D
LE
CLR
D
LE
CLR
LE CLR
VNN VPP
SW28
Y2829
SW29
SW30
Y3031
SW31
Supertex inc.
www.supertex.com