Supertex inc. HV20220 Low Charge Injection, 8-Channel, High Voltage Analog Switches Features General Description HVCMOS technology for high performance This device is a low charge injection, 8-channel, high-voltage analog switch integrated circuit (IC) intended for use in appli- Very low quiescent power dissipation (-10A) cations requiring high voltage switching controlled by low volt- Output on-resistance typically 22 age control signals, such as ultrasound imaging and printers. Low parasitic capacitances DC to 50MHz small signal frequency response Input data is shifted into an 8-bit shift register which can then -60dB typical output off isolation at 5.0MHz be retained in an 8-bit latch. To reduce any possible clock CMOS logic circuitry for low power feed-through noise, Latch Enable Bar (LE) should be left high Excellent noise immunity until all bits are clocked in. Using HVCMOS technology, this On-chip shift register, latch and clear logic circuitry switch combines high voltage bilateral DMOS switches and Flexible high voltage supplies low power CMOS logic to provide efficient control of high volt- age analog signals. Applications Medical ultrasound imaging These ICs are suitable for various combinations of high volt- age supplies, e.g., V /V : +50V/-150V, or +100V/-100V. Piezoelectric transducer drivers PP NN Block Diagram Level Output Latches Shifters Switches D LE SW0 CL D LE SW1 CL D LE SW2 DIN CL D SW3 LE 8-Bit CL Shift CLK D Register LE SW4 CL DOUT D LE SW5 CL D LE SW6 CL D LE SW7 CL VNN VPP LE CL VDD Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com HV20220 Ordering Information Package Options 48-Lead LQFP 28-Lead PLCC Device 7.00x7.00mm body .453x.453in body 1.60mm height (max) .180in height (max) 0.50mm pitch .050in pitch HV20220 HV20220FG-G HV20220PJ-G -G indicates the part is RoHS compliant (Green) Pin Configurations Absolute Maximum Ratings 48 Parameter Value 1 V logic power supply voltage -0.5V to +15V DD V - V supply voltage 220V PP NN V positive high voltage supply -0.5V to V +200V PP NN V negative high voltage supply +0.5V to -200V NN Logic input voltages -0.5V to V +0.3V DD 48-Lead LQFP (FG) Analog signal range V to V NN PP 4 1 28 26 Peak analog signal current/channel 3.0A O O Storage temperature -65 C to +150 C Power dissipation: 48-Lead LQFP 1.0W 28-JLead PLCC 1.2W 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 28-Lead PLCC (PJ) voltages are referenced to device ground. Product Marking Top Marking Operating Conditions YYWW Sym Parameter Value YY = Year Sealed HV20220FG 1,3 WW = Week Sealed V Logic power supply voltage 4.5V to 13.2V LLLLLLLLL DD L = Lot Number 1,3 V Positive high voltage supply 40V to V +200V PP NN C = Country of Origin* Bottom Marking 1,3 A = Assembler ID* V Negative high voltage supply -40V to -160V NN = Green Packaging CCCCCCCC V High level input voltage V -1.5V to V AAA IH DD DD *May be part of top marking V Low-level input voltage 0V to 1.5V IL Package may or may not include the following marks: Si or V +10V to NN V Analog signal voltage peak-to-peak SIG 2 48-Lead LQFP (FG) V -10V PP O O T Operating free air temperature 0 C to 70 C Top Marking A YY = Year Sealed Notes: YYWW AAA 1. Power up/down sequence is arbitrary except GND must be powered-up first WW = Week Sealed HV20220PJ and powered-down last. LLLLLLLLLL L = Lot Number 2. V must be V V V or floating during power-up/down transition. SIG NN SIG PP A = Assembler ID Bottom Marking 3. Rise and fall times of power supplies V , V , and V should not be less DD PP NN C = Country of Origin* than 1.0msec. = Green Packaging CCCCCCCCCCC *May be part of top marking Package may or may not include the following marks: Si or 28-Lead PLCC (PJ) Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com 2