HV2731 16-Channel (2 Banks of 8-Channels), High Voltage, Analog Switch With Bleed Resistors Features General Description HVCMOS technology for high performance The Supertex HV2731 is a 220V, 16-channel, high voltage, analog 220V operating conditions switch integrated circuit (IC) with output bleed resistors (R ). INT 22 typical output on-resistance The output switches are congured as 2 sets of 8 single pole, Integrated bleed resistors on the outputs single throw analog switches. The IC is intended to be used in 3.3V and 5.0V CMOS logic compatibility applications requiring high voltage switching controlled by low Very low quiescent power dissipation (-10A) voltage control signals, such as ultrasound imaging. -45dB min off isolation at 7.5MHz Low parasitic capacitance The 2 sets of 8 analog switches are controlled by 2 input logic Excellent noise immunity controls, D 1 and D 2. A logic high on D 1 will turn on switches IN IN IN Flexible operating supply voltages 0 to 7 and a logic high on D 2 will turn on switches 8 to 15. The IN 48-lead LQFP package bleed resistors help to signicantly reduce voltage built up on capacitive loads such as piezoelectric transducers connected to Applications the outputs. Medical ultrasound imaging Using HVCMOS technology, this device combines high voltage Non-destructive evaluation bilateral DMOS switches and low power CMOS logic to provide efcient control of high voltage analog signals. Block Diagram VDD SW0 D 1 Level IN Latch Translator 1 1 SW0 SW7 SW7 V DD SW8 D 2 Level IN Latch Translator 2 2 LE SW8 GND VPP SW15 VNN SW15 RGND 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.comHV2731 Ordering Information Pin Conguration 48-Lead LQFP 48 7.00x7.00mm body 1 Device 1.60mm height (max) 0.50mm pitch HV2731 HV2731FG-G -G indicates package is RoHS compliant (Green) 48-Lead LQFP (FG) (top view) Absolute Maximum Ratings Parameter Value Product Marking V logic supply -0.5V to +7.0V Top Marking DD V -V differential supply 225V YYWW YY = Year Sealed PP NN HV2731FG WW = Week Sealed LLLLLLLLL V positive supply -0.5V to V +225V PP NN L = Lot Number V negative supply +0.5V to -225V C = Country of Origin* NN Bottom Marking A = Assembler ID* Logic input voltage -0.5V to V +0.3V DD = Green Packaging CCCCCCCC AAA Analog signal range V to V NN PP *May be part of top marking Peak analog signal current/channel 2.5A Package may or may not include the following marks: Si or Storage temperature -65C to 150C 48-Lead LQFP (FG) Power dissipation 1.0W 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. Recommended Operating Conditions Sym Parameter Value V Logic power supply voltage 3.0V to 5.5V DD V Positive driver supply +50V to +110V PP V Negative high voltage supply -10V to V -220V NN PP V High level input voltage V -1.0V to V IH DD DD V Low-level input voltage 0V to 1.0V IL V Analog signal voltage peak-to-peak V +10V to V -10V SIG NN PP O O T Operating free air temperature 0 C to 70 C A Notes: 1. Power up/down sequence is arbitrary except GND must be powered-up rst and powered-down last. 2. V must be V V V or oating 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 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com 2