HV2808 Datasheet, PDF (1/7 Pages) Supertex, Inc – Low Harmonic Distortion, 32-Channel, High Voltage Analog Switch IC

Supertex inc.
HV2808
Low Harmonic Distortion, 32-Channel,
High Voltage Analog Switch IC
Features
►► 32 Channels of high voltage analog switch
►► 2:1 Multiplexer / Demultiplexer
►► 3.3 or 5.0V CMOS input logic level
►► 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
►► Flexible operating supply voltages
Applications
►► Electromechanical relay replacement in
medical ultrasound probes.
General Description
The Supertex HV2808 is a low harmonic distortion, 32-channel,
high voltage analog switch integrated circuit (IC), designed for
use in medical ultrasound imaging systems as a probe selection
relay replacement. It serves as a 16PDT (16-pole, double throw)
high voltage analog switch array. HV2808 is a very fast transducer
multiplexer that consumes minimal power and emits no audible
noise.
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.
The HV2808 comes in an 8x8x1.0mm, 56-Lead QFN package.
Compared to an electromechanical relay, it not only saves
considerable PCB area, but also saves on the PCB assembled
height.
Block Diagram
+3.3V
1kΩ ^VDD
0.1µF
HV2808
Output
Switches
SW0
Y01
Logic
A/B
Control
&
Level
Shifters
SW1
SW30
GND
VNN
VPP
-100V
+100V
0.1µF
0.1µF
Y3031
SW31
Doc.# DSFP-HV2808
C121712
Supertex inc.
www.supertex.com