Supertex inc. HV2808 Low Harmonic Distortion, 32-Channel, High Voltage Analog Switch IC General Description Features The Supertex HV2808 is a low harmonic distortion, 32-channel, 32 Channels of high voltage analog switch high voltage analog switch integrated circuit (IC), designed for 2:1 Multiplexer / Demultiplexer use in medical ultrasound imaging systems as a probe selection 3.3 or 5.0V CMOS input logic level relay replacement. It serves as a 16PDT (16-pole, double throw) HVCMOS technology for high performance high voltage analog switch array. HV2808 is a very fast transducer Very low quiescent power dissipation -10A multiplexer that consumes minimal power and emits no audible Low parasitic capacitance noise. DC to 50MHz analog signal frequency Using HVCMOS technology, this device combines high voltage -60dB typical OFF-isolation at 5.0MHz bilateral DMOS switches and low power CMOS logic to provide CMOS logic circuitry for low power efficient control of high voltage analog signals. Excellent noise immunity Flexible operating supply voltages The device is suitable for various combinations of high voltage supplies, e.g., V /V : +40V/-160V, +100V/-100V, and +160V/-40V. Applications PP NN Electromechanical relay replacement in The HV2808 comes in an 8x8x1.0mm, 56-Lead QFN package. medical ultrasound probes. Compared to an electromechanical relay, it not only saves considerable PCB area, but also saves on the PCB assembled height. Block Diagram Output +3.3V HV2808 Switches VDD 1k SW0 0.1F Y01 Logic SW1 Control A/B & Level Shifters SW30 Y3031 SW31 GND VNN VPP +100V -100V 0.1F 0.1F Doc. DSFP-HV2808 Supertex inc. C121712 www.supertex.comHV2808 Pin Configuration Ordering Information 56 Part Number Package Option Packing 1 HV2808K6-G 56-Lead QFN (8x8) 250/Tray HV2808K6-G M937 56-Lead QFN (8x8) 2000/Reel -G indicates package is RoHS compliant (Green) Absolute Maximum Ratings Parameter Value 56-Lead QFN (top view) V logic supply -0.5V to +6.5V DD V -V differential supply 220V PP NN Product Marking V positive supply -0.5V to V +200V PP NN L = Lot Number V negative supply +0.5V to -200V NN HV2808K6 YY = Year Sealed Logic input voltage -0.5V to V +0.3V LLLLLLLLL WW = Week Sealed DD YYWW A = Assembler ID Analog signal range V to V NN PP C = Country of Origin AAA CCC Peak analog signal current/channel 3.0A = Green Packaging Storage temperature -65C to 150C Package may or may not include the following marks: Si or O 56-Lead QFN Thermal resistance, 27 C/W ja O Thermal resistance, 0.5 C/W jc Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Continuous operation of the device at the absolute rating level may affect device reliability. All voltages are referenced to device ground. Typical Thermal Characteristics Package ja O 56-Lead QFN (K6) 21 C/W Recommended Operating Conditions Sym Parameter Value V Logic power supply voltage 3.0 to 5.5V DD V Positive high voltage supply +40 to V +200V PP NN V Negative high voltage supply -40 to -160V NN V High level input voltage 0.9V to V IH DD DD V Low level input voltage 0 to 0.1V IL DD V Analog signal voltage peak-to-peak V +10V to V -10V SIG NN PP O T Operating free air temperature 0 to 70 C A Notes: 1. Power up/down sequence is arbitrary except GND must be powered-up first and powered-down last. 2. V must be V V V or floating during power up/down transition. SIG NN SIG PP 3. Rise and fall times of power supplies V , V , and V should not be less than 1.0msec. DD PP NN Doc. DSFP-HV2808 Supertex inc. C121712 2 www.supertex.com