HV2809 Datasheet, PDF (1/7 Pages) Supertex, Inc – Low Harmonic Distortion, 32-Channel, High Voltage Analog Switch Relay Replacement IC

Supertex inc.
HV2809
Low Harmonic Distortion, 32-Channel,
High Voltage Analog Switch Relay Replacement IC
Features
►► 32-channel high voltage analog switch
►► 2:1 multiplexer/demultiplexer
►► Enable control for all-OFF state
►► 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
►► 56-Lead 8x8 QFN package
Applications
►► Electromechanical relay replacement in
medical ultrasound probes.
General Description
The Supertex HV2809 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. The enable function allows the parts to be configured
as either a 2:1 or 4:1 multiplexer/demultiplexer. The HV2809 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 HV2809 comes in an 8.0mm x 8.0mm x 1.0mm, 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
Output
Switches
SW0
Y01
A/B
ENABLE
Logic
Control
&
Level
Shifters
SW1
SW30
Y3031
GND
VNN
VPP
-100V
+100V
0.1µF 0.1µF
SW31
Doc.# DSFP-HV2809
NR010913
Supertex inc.
www.supertex.com