HV2731 16-Channel (2 Banks of 8-Channels), High Voltage, Analog Switch With Bleed Resistors Features General Description ► ► ► ► ► ► ► ► ► ► ► The Supertex HV2731 is a 220V, 16-channel, high voltage, analog switch integrated circuit (IC) with output bleed resistors (RINT). The output switches are configured as 2 sets of 8 single pole, single throw analog switches. The IC is intended to be used in applications requiring high voltage switching controlled by low voltage control signals, such as ultrasound imaging. HVCMOS® technology for high performance 220V operating conditions 22Ω typical output on-resistance Integrated bleed resistors on the outputs 3.3V and 5.0V CMOS logic compatibility Very low quiescent power dissipation (-10µA) -45dB min off isolation at 7.5MHz Low parasitic capacitance Excellent noise immunity Flexible operating supply voltages 48-lead LQFP package Applications ► ► Medical ultrasound imaging Non-destructive evaluation The 2 sets of 8 analog switches are controlled by 2 input logic controls, DIN1 and DIN2. A logic high on DIN1 will turn on switches 0 to 7 and a logic high on DIN2 will turn on switches 8 to 15. The bleed resistors help to significantly reduce voltage built up on capacitive loads such as piezoelectric transducers connected to the outputs. 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. Block Diagram VDD DIN1 SW0 Latch 1 Level Translator 1 SW0 SW7 SW7 VDD SW8 DIN2 LE GND VPP Latch 2 Level Translator 2 SW8 SW15 VNN SW15 RGND ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com HV2731 Ordering Information Pin Configuration 48-Lead LQFP Device 7.00x7.00mm body 1.60mm height (max) 0.50mm pitch HV2731 HV2731FG-G 1 48 -G indicates package is RoHS compliant (‘Green’) 48-Lead LQFP (FG) (top view) Absolute Maximum Ratings Parameter Value VDD logic supply -0.5V to +7.0V VPP-VNN differential supply Product Marking Top Marking 225V VPP positive supply YYWW HV2731F G -0.5V to VNN+225V VNN negative supply +0.5V to -225V Logic input voltage LLLLLLLLL Bottom Marking -0.5V to VDD +0.3V Analog signal range CCCCCCCC AAA VNN to VPP Peak analog signal current/channel Storage temperature 2.5A -65°C to 150°C Power dissipation YY = Year Sealed WW = Week Sealed L = Lot Number C = Country of Origin* A = Assembler ID* = “Green” Packaging *May be part of top marking Package may or may not include the following marks: Si or 48-Lead LQFP (FG) 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 VDD Logic power supply voltage VPP Positive driver supply VNN Negative high voltage supply VIH High level input voltage VDD -1.0V to VDD VIL Low-level input voltage 0V to 1.0V VSIG Analog signal voltage peak-to-peak TA 3.0V to 5.5V +50V to +110V -10V to VPP -220V VNN +10V to VPP -10V Operating free air temperature Notes: Power up/down sequence is arbitrary except GND must be powered-up first and powered-down last. 1. 2. VSIG must be VNN ≤ VSIG ≤ VPP or floating during power up/down transition. 3. Rise and fall times of power supplies VDD, VPP, and VNN should not be less than 1.0msec. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com 2 0OC to 70OC HV2731 DC Electrical Characteristics (Over recommended operating conditions unless otherwise specified ) Sym 0OC Parameter +25OC +70OC Max Min Typ - 30 - 26 32 - 40 - 25 - 22 27 - 35 - 25 - 22 27 - 30 - 20 - 18 22 - 25 Small signal switch on-resistance matching - 20 - 5.0 20 - 20 % RONL Large signal switch on-resistance VSIG = 0V, ISIG = 5.0mA, VPP = +110V, VNN = -110V - - - 15 - - - Ω VSIG = 0V, ISIG = 1.0A RINT Output switch shunt resistance - - 20 35 50 - - KΩ ISOL Switch off-leakage per switch - 5.0 - 1.0 10 - 15 μA Output switch to RGND IRINT = 0.5mA VOS(OFF) DC offset switch off - 300 - 100 300 - 300 VOS(ON) DC offset switch on - 500 - 100 500 - 500 RONS ΔRONS Small signal switch on-resistance Max Min Max Units Conditions Min VSIG = 0V, ISIG = 5.0mA, VPP = +50V, VNN = -170V Ω VSIG = 0V, ISIG = 200mA, VPP = +50V, VNN = -170V VSIG = 0V, ISIG = 5.0mA, VPP = +110V, VNN = -110V VSIG = 0V, ISIG = 200mA, VPP = +110V, VNN = -110V VSIG = VPP -10V, VNN = +10V mV No load μA All switches off μA All switches on, ISW = 5.0mA VSIG duty cycle < 0.1% IPPQ Quiescent VPP supply current - - - 10 50 - - INNQ Quiescent VNN supply current - - - -10 -50 - - IPPQ Quiescent VPP supply current - - - 10 50 - - INNQ Quiescent VNN supply current - - - -10 -50 - - ISW Switch output peak current - 2.0 - - 2.0 - 2.0 A fSW Output switching frequency - - - - 50 - - kHz Duty cycle = 50% IPP Average VPP supply current - 8.1 - - 8.8 - 10 INN Average VNN supply current - -8.1 - - -8.8 - -10 mA VPP = 50V, VNN = -170V, All switches turning on and off at 50kHz IPP Average VPP supply current - 8.1 - - 6.3 - 6.9 INN Average VNN supply current - -8.1 - - -6.3 - -6.9 mA VPP = 110V, VNN = -110V, All switches turning on and off at 50kHz IDDQ Quiescent VDD supply current - 10 - - 10 - 10 μA All logic inputs are static IDD Average VDD supply current - 2.0 - - 2.0 - 2.0 mA DIN1 = DIN2 = 3.0MHz, LE = high CIN Logic input capacitance - 10 - - 10 - 10 pF --- AC Electrical Characteristics (Over recommended operating conditions unless otherwise specified) Sym Parameter tWLE tWDIN tSD 0OC +25OC +70OC Units Conditions Min Max Min Typ Max Min Max Time width of LE 150 - 150 - - 150 - ns --- Time width of DIN 150 - 150 - - 150 - ns --- Set up time before LE rises 150 - 150 - - 150 - ns --- ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com 3 HV2731 AC Electrical Characteristics (cont.) (Over recommended operating conditions unless otherwise specified) Sym 0OC Parameter +25OC +70OC Min Max Min Typ Max Min Max Units Conditions tON Turn on time - 5.0 - - 5.0 - 5.0 tOFF Turn off time - 5.0 - - 5.0 - 5.0 Maximum VSIG slew rate - 20 - - 20 - 20 -30 - -30 -33 - -30 - -45 - -45 -50 - -45 - -45 - -45 - - -45 - dB f = 5.0MHz, RLOAD = 50Ω - 300 - - 300 - 300 mA 300ns pulse width, 2.0% duty cycle CSG(OFF) Off capacitance SW to GND 5.0 17 5.0 12 17 5.0 17 pF VSIG = 0V, f = 1.0MHz CSG(ON) On capacitance SW to GND 25 50 25 38 50 25 50 pF VSIG = 0V, f = 1.0MHz - - - 250 - - - - - - 500 - - - mV RLOAD = 50Ω - - - 770 - - - - - - 620 - - - dv/dt KO Off isolation KCR Switch crosstalk IID +VSPK -VSPK QC Output switch isolation diode current Output voltage spike Charge injection μs V/ns dB VSIG = VPP -10V, RLOAD = 10KΩ --f = 5.0MHz, load = 1.0KΩ//15pF f = 7.5MHz, RLOAD = 50Ω PC VPP = +50V, VNN = -170V VPP = +110V, VNN = -110V Logic Timing Waveforms VDD DIN 50% 0V tSD VDD LE tWLE 50% 50% 50% 0V ON 90% SW 10% OFF TON TOFF Truth Table DIN2 DIN1 LE SW0 to SW7 SW8 to SW15 L L L OFF OFF L H L ON OFF H L L OFF ON H H L ON ON X X H Hold Previous State ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com 4 HV2731 Test Circuits VPP -10V RL 10kΩ VPP -10V and VNN +10V VOUT RINT RINT VOUT VOUT RINT RINT RINT RGND RGND RGND VPP VPP VDD VNN VNN GND ISOL = 5.0V VPP VPP VDD VNN VNN GND VOUT RINT RINT 5.0V VPP VPP VDD VNN VNN GND 5.0V TON/TOFF Test Circuit DC Offset ON/OFF Switch OFF Leakage VOUT VOUT RINT VIN = 10VP-P @5.0MHz RINT VIN = 10VP-P @5.0MHz RLOAD NC RINT 50Ω RINT RGND VPP VPP VDD VNN VNN GND KO = 20Log 5.0V VPP VPP VDD VNN VNN GND VOUT VIN 5.0V VOUT KCR = 20Log OFF Isolation VIN Crosstalk ∆VOUT +VSPK VSIG IID 50Ω VNN RINT RINT RINT 1.0kΩ RGND RINT VOUT 50Ω VSIG RINT -VSPK RINT RGND RGND VPP VPP VDD 5.0V VPP VPP VDD VNN VNN GND VNN VNN GND 5.0V VPP VPP VDD VNN VNN GND Q = 1000pF • ∆VOUT Isolation Diode Current VOUT 1000pF Output Voltage Spike Charge Injection ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com 5 5.0V HV2731 Pin Configuration Pin Function Pin Function 1 VNN 25 SW10 2 N/C 26 SW10 3 VPP 27 SW9 4 N/C 28 SW9 5 DIN1 29 SW8 6 LE 30 SW8 7 DIN2 31 SW7 8 N/C 32 SW7 9 N/C 33 SW6 10 VDD 34 SW6 11 GND 35 SW5 12 N/C 36 SW5 13 RGND 37 SW4 14 SW15 38 N/C 15 SW15 39 SW4 16 SW14 40 N/C 17 SW14 41 SW3 18 SW13 42 SW3 19 SW13 43 SW2 20 SW12 44 SW2 21 SW12 45 SW1 22 SW11 46 SW1 23 SW11 47 SW0 24 N/C 48 SW0 ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com 6 HV2731 48-Lead LQFP Package Outline (FG) 7.00x7.00mm body, 1.60mm height (max), 0.50mm pitch D D1 E E1 Note 1 (Index Area D1/4 x E1/4) L2 Gauge Plane 48 L 1 e b θ L1 Top View Seating Plane View B View B A A2 Seating Plane A1 Side View Note: 1. A Pin 1 identifier must be located in the index area indicated. The Pin 1 identifier can be: a molded mark/identifier; an embedded metal marker; or a printed indicator. Symbol MIN Dimension NOM (mm) MAX A A1 A2 b D D1 E E1 1.40* 0.05 1.35 0.17 8.80* 6.80* 8.80* 6.80* - - 1.40 0.22 9.00 7.00 9.00 7.00 1.60 0.15 1.45 0.27 9.20* 7.20* 9.20* 7.20* e 0.50 BSC L 0.45 0.60 0.75 L1 1.00 REF L2 0.25 BSC θ 0O 3.5O 7O JEDEC Registration MS-026, Variation BBC, Issue D, Jan. 2001. * This dimension is not specified in the JEDEC drawing. Drawings are not to scale. Supertex Doc. #: DSPD-48LQFPFG Version, D041309. (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to http://www.supertex.com/packaging.html.) Supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives an adequate “product liability indemnification insurance agreement.” Supertex inc. does not assume responsibility for use of devices described, and limits its liability to the replacement of the devices determined defective due to workmanship. No responsibility is assumed for possible omissions and inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications refer to the Supertex inc. website: http//www.supertex.com. ©2009 All rights reserved. Unauthorized use or reproduction is prohibited. Doc.# DSFP-HV2731 B092909 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com 7