HV20720 Dual 1 of 4 High Voltage Analog Switch Ordering Information Package Options VPP-VNN 28-Lead Plastic Chip Carrier Die 200V HV20720PJ HV20720X Features General Description ❏ HVCMOS® technology for high performance ❏ Operating voltage of up 200V ❏ Very low quiescent current-10µA ❏ Low parasitic capacitances ❏ Over 20MHz bandwidth The Supertex HV207 is an 8-channel high-voltage analog switch integrated circuit (IC) configured as a dual 1 of 4 analog switch. The 2 sets of 4 analog switches are controlled independently with the 2 independent 1:4 decoders. The addressed switches are turned ON and the unaddressed switches are turned OFF. A logic high on the input clear pin will turn OFF all output switches regardless of the address input states. ❏ -58dB typical output off isolation at 5MHz ❏ 5.0V CMOS logic circuitry ❏ Excellent noise immunity ❏ Flexible high voltage supplies Absolute Maximum Ratings* VDD Logic power supply voltage VPP - VNN Supply voltage -0.5V to +7.5V +220V VPP Positive high voltage supply -0.5V to +200V VNN Negative high voltage supply +0.5V to -200V Logic input voltages VSIG Analog Signal Range Peak analog signal current/channel Storage temperature Power dissipation, 28 pin PLCC -0.5V to VDD +0.3V VNN to VPP 3.0A -65°C to +150°C 1.2W * All voltages are referenced to ground. Absolute maximum ratings are those values 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. 11/12/01 Supertex Inc. does not recommend the use of its products in life support applications and will not knowingly sell its products for use in such applications unless it receives an adequate "products liability indemnification insurance agreement." Supertex does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to workmanship. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the Supertex website: http://www.supertex.com. For complete liability information on all Supertex products, 1 refer to the most current databook or to the Legal/Disclaimer page on the Supertex website. HV20720 Electrical Characteristics DC Characteristics (VPP = + 100V, VNN = -100V, VDD = + 5.0V, TA = + 25°C) Characteristics Small Signal Switch (ON) Resistance Sym RONS Small Signal Switch (ON)Resistance Matching ∆RONS Voltage Drop Across SW at Large Positive VSIG Voltage Drop Across SW at Large Negative VSIG typ 22 max 27 Units Ω Test Conditions VSIG = 0V, ISW = 5mA 5.0 20 % VSIG = 0V, ISW = 5mA ∆VSW 15 V VSIG = +90V, RL = 200Ω ∆VSW 8.0 V VSIG = -90V, RL = 200Ω 1.0 10 µA VSIG = Vpp - 10V and VNN + 10V DC Offset Switch OFF 100 300 mV RL =100KΩ DC Offset Switch ON 100 500 mV RL =100KΩ Switch Off Leakage Per Switch min ISOL Pos. HV Supply Current IPPQ 10 50 µA All SWs OFF Neg. HV Supply Current INNQ -10 -50 µA All SWs OFF Pos. HV Supply Current IPPQ 10 50 µA All SWs ON, ISW = 5 mA Neg. HV Supply Current INNQ -10 -50 µA All SWs ON, ISW = 5 mA 3.0 2.0 A VSIG duty cycle ≤0.1% 50 Khz Duty Cycle = 50% 4 SWs turning ON and OFF at 50KHz. Switch Output Peak Current Output Switch Frequency fSW IPP Supply Current IPP 3.5 5.0 mA INN Supply Current INN -3.5 -5 mA Logic Supply Quiescent Current IDDQ 10 µA Electrical Characteristics AC Characteristics (VPP = + 100V, VNN = - 100V, VDD = + 5.0V, TA = + 25°C) Characteristics Turn On Time Sym tON Turn Off Time Maximum VSIG Slew Rate min max 5.0 Units µs Test Conditions VSIG = VPP - 10V, RLOAD = 10KΩ tOFF 5.0 µs VSIG = VPP - 10V, RLOAD = 10KΩ dv/dt 13 V/ns Off Isolation KO -45 Switch Crosstalk KCR -60 Output Switch Isolation Diode Current typ -58 IID 300 2 dB f = 5.0MHz, RLOAD = 50Ω dB f = 5.0MHz, RLOAD = 50Ω mA 300ns pulse width, 2.0% duty cycle HV20720 Operating Conditions Symbol Parameter Value VPP - VNN Maximum differential voltage +200V VPP Positive high voltage supply1 +40V to VNN + 200V VNN Negative high voltage supply1 -40V to -160V VDD Logic power supply voltage1 +4.75V to +5.25V VIH High-level input voltage VDD -1.5V to VDD VIL Low-level input voltage 0V to 1.5V Analog signal voltage peak-to-peak2 VNN +10V to VPP -10V Operating free air-temperature 0°C to 70°C VSIG TA Notes: 1 Power up/down sequence is arbitrary except GND must be powered-up first and powered-down last. 2 VSIG must be VNN ≤ VSIG ≤ VPP or floating during power up/down transistion. Truth Table A1 A0 CLA B1 B0 CLB SW0A SW1A SW2A SW3A SW0B SW1B SW2B SW3B L L H H X L H L H X L L L L H L L H H X L H L H X L L L L H ON OFF OFF OFF OFF OFF ON OFF OFF OFF OFF OFF ON OFF OFF OFF OFF OFF ON OFF ON OFF OFF OFF OFF OFF ON OFF OFF OFF OFF OFF ON OFF OFF OFF OFF OFF ON OFF Logic Timing Waveforms A0,A1 VDD 50% 50% 0V CLA VDD 0V SW0A ON OFF SW3A TON TOFF 90% 10% ON OFF 3 HV20720 Test Circuits VPP –10V VPP –10 RL ISOL 10KΩ VOUT VOUT 100KΩ VNN +10 VPP VPP VDD VNN VNN GND 5V RL VPP VPP VDD VNN VNN GND 5V VPP VPP VDD VNN VNN GND TON /TOFF Test Circuit DC Offset ON/OFF Switch OFF Leakage 5V VIN = 10 VP–P @5MHz VIN = 10 VP–P @5MHz VSIG IID VOUT 50Ω NC VNN RL 50Ω VPP VPP VDD VNN VNN GND KO = 20Log 5V VPP VPP VDD VNN VNN GND 5V VPP VPP VDD VNN VNN GND VOUT VIN KCR = 20Log OFF Isolation Isolation Diode Current ∆VOUT Crosstalk +VSPK VOUT VOUT –VSPK 1000pF 50Ω VSIG 1KΩ VPP VPP VDD VNN VNN GND 5V RL VPP VPP VDD VNN VNN GND Q = 1000pF x ∆VOUT Charge Injection Output Voltage Spike 4 VOUT VIN 5V 5V HV20720 Block Diagram Vpp SW0A SW0A VDD A0 A1 SW1A SW1A High Voltage Level Trans. 1:4 Decoder A SW2A SW2A SW3A SW3A CLA GND SW0B SW0B VDD B0 B1 CLB SW1B SW1B High Voltage Level Trans. 1:4 Decoder B SW2B SW2B SW3B SW3B GND VNN Package Outline Pin Configuration HV207 28-Pin J-Lead Pin Function 1 SW3A 2 SW2A 3 SW2A 4 SW1A 5 SW1A 6 SW0A 7 SW0A 8 N/C 9 VPP 10 N/C 11 VNN 12 GND 13 VDD 14 B0 25 Pin 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Function B1 A0 A1 CLB CLA SW0B SW0B SW1B SW1B SW2B SW2B SW3B SW3B SW3A 24 23 22 21 20 19 26 18 27 17 28 16 1 15 2 14 3 13 4 12 5 6 7 8 9 10 11 top view 28-pin J-Lead Package 11/12/01 ©2001 Supertex Inc. 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