HV214_13 Datasheet, PDF (1/9 Pages) Supertex, Inc – 250V Low Charge Injection, 8-Channel, High Voltage Analog Switch

Supertex inc.
HV214
250V Low Charge Injection,
8-Channel, High Voltage Analog Switch
Features
►►HVCMOS^® technology for high performance
►►Very low quiescent power dissipation (-10µA)
►►Low parasitic capacitances
►►DC to 50MHz small signal frequency response
►►-60dB typical output off isolation at 5.0MHz
►►CMOS logic circuitry for low power
►►Excellent noise immunity
►►On-chip shift register, latch and clear logic circuitry
►►Flexible high voltage supplies
►►Surface mount packages
Applications
►►Medical ultrasound imaging
►►Non-destructive evaluation
►►Inkjet printer heads
►►Optical MEMS modules
General Description
The Supertex HV214 is a low charge injection, 8-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 drivers, inkjet printer heads and optical
MEMS modules.
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 feedthrough
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/-210V, +125V/-125V, +210V/-40V.
Block Diagram
DIN
CLK
DOUT
Doc.# DSFP-HV214
C070713
8-Bit
Shift
Register
Level Output
Latches Shifters Switches
D
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
SW0
SW1
SW2
SW3
SW4
SW5
SW6
SW7
VDD
LE CL
VNN VPP
Supertex inc.
www.supertex.com