HV2809K6-G

Analog Switches - Special Purpose Overview

The HV2809K6-G is a low harmonic distortion, 32-channel high voltage analog switch IC designed for medical ultrasound imaging systems. It features a 16 x SPDT configuration within a 56-lead QFN package. The device operates with logic supply voltages between 3.0V and 5.5V and supports dual high-voltage supplies ranging from -40V to +200V. Key electrical parameters include a maximum on-resistance of 30 Ohms at VPP=+40V/VNN=-160V, turn-on/turn-off times of 30µs, and quiescent current of 10µA. It handles analog signals up to 50MHz with typical OFF-isolation of -60dB at 5.0MHz.

Analog Switches - Special Purpose Feature Summary

• HVCMOS technology combining high voltage bilateral DMOS switches with low power CMOS logic
• Configurable as 2:1 or 4:1 multiplexer/demultiplexer via enable control
• Low parasitic capacitance and excellent noise immunity
• Silent operation suitable for electromechanical relay replacement

Analog Switches - Special Purpose Applications

• Electromechanical relay replacement in medical ultrasound probes
• Transducer multiplexing in ultrasound imaging systems
• High voltage analog signal routing

Analog Switches - Special Purpose Procurement Notes

Verify the manufacturer origin, as the datasheet identifies Supertex Inc., while distributors may list Microchip Technology due to acquisition history. Confirm RoHS compliance status indicated by the 'G' suffix. Ensure the specific ordering suffix matches the required packing quantity (Tray vs Reel). Validate that the component meets the humidity sensitivity requirements for surface mount assembly processes.

Analog Switches - Special Purpose Selection Notes

Select this component when replacing electromechanical relays in space-constrained medical ultrasound applications. Ensure the design accommodates the 56-lead QFN package dimensions and thermal pad connection to VNN. Verify that the system logic levels align with the 3.3V or 5.0V CMOS input requirements. Confirm that the high voltage supply rails fall within the recommended operating conditions for the desired channel isolation performance.

Analog Switches - Special Purpose Part Context

The HV2809 belongs to a family of high voltage analog switches originally developed by Supertex Inc. before its acquisition by Microchip Technology. It serves as a solid-state alternative to mechanical relays, offering reduced PCB area and height. The K6 suffix denotes the 56-lead 8x8mm QFN package variant. This device is distinct from other HV series parts like the HV2808 or HV2901 which may have different switching speeds or voltage ratings.

Analog Switches - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.