HV2809

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., VPP/VNN: +40V/-160V, +100V/-100V, and +160V/-40V. The HV2...