HV2701 Initial Release Low Charge Injection 16-Channel High Voltage Analog Switch with Bleed Resistors Features General Description The Supertex HV2701 is a low charge injection 16-channel high voltage analog switch integrated circuit (IC) with bleed resistors. The device can be used in applications requiring high voltage switching controlled by low voltage control signals, such as medical ultrasound imaging and piezoelectric transducer drivers. The bleed resistors eliminate voltage built up on capacitive loads such as piezoelectric transducers. HVCMOS technology for high performance Integrated bleed resistors on the outputs 16 Channels of high voltage analog switch 3.3V input logic level compatible 20MHz data shift clock frequency Very low quiescent power dissipation-10µA Low parasitic capacitance DC to 10MHz analog signal frequency -60dB typical off-isolation at 5MHz CMOS logic circuitry for low power Excellent noise immunity Cascadable serial data register with latches Flexible operating supply voltages Input data is shifted into a 16-bit shift register that can then be retained in a 16-bit latch. To reduce any possible clock feed through noise, the latch enable bar should be left high until all bits are clocked in. Data are clocked in during the rising edge of the clock. 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. Applications The device is suitable for various combinations of high voltage supplies, e.g., VPP/VNN: +40V/-160V, +100V/-100V, and +160V/-40V. Medical ultrasound imaging NDT metal flaw detection Piezoelectric transducer drivers Optical MEMS modules HV2701 Block Diagram LEVEL SHIFTERS LATCHES DIN CLK 16 BIT SHIFT REGISTER DOUT VDD OUTPUT SWITCHES D LE CL SW0 D LE CL SW1 D LE CL SW2 D LE CL SW14 D LE CL SW15 RGND GND LE CL VNN VPP NR102405 1 HV2701 Ordering Information Package Options DEVICE 48-Lead TQFP (1.4mm) HV2701 HV2701FG-G -G indicates package is RoHS compliant (‘Green’) Absolute Maximum Ratings VDD Logic supply -0.5V to +7V VPP-VNN differential supply VPP Positive supply 220V -0.5V to VNN+200V VNN Negative supply +0.5V to -200V -0.5V to VDD +0.3V Logic input voltage VNN to VPP Analog signal range Peak analog signal current/channel Storage temperature 3.0A -65°C to 150°C Power dissipation 1W *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. Operation Conditions Symbol Parameter Value VDD Logic power supply voltage 3.0V to 5.5V VPP Positive high voltage supply 40V to VNN +200V VNN Negative high voltage supply VIH High level input voltage 0.9VDD to VDD VIL Low level input voltage 0V to 0.1VDD VSIG Analog signal voltage peak-to-peak TA -40V to –160V VNN+10V to VPP-10V Operating free air temperature 0°C to 70°C Notes: 1 Power up/down sequence is arbitrary except GND must be powered-up first and powered-down last. 2 VSIG must be within VNN and 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. NR102405 2 HV2701 DC Electrical Characteristics (over recommended operating conditions unless otherwise noted) 0°C Sym Small Signal Switch On-Resistance ∆RONS Small Signal Switch On-Resistance Matching RONL Large Signal Switch On-Resistance RINT Value of output Bleed Resistor ISOL Switch Off Leakage per Switch* VOS Typ Max 26 38 48 22 22 27 27 32 30 18 23 18 20 24 25 27 30 22 16 25 27 20 5.0 20 20 15 INN ISIG = 5mA, VPP = +100V, VNN = -100V Ω VSIG=VPP-10V, ISIG=1A 300 300 mV 100 500 500 mV 10 50 µA All switches off -10 -50 µA All switches off 10 50 µA All switches on, ISW = 5mA -10 -50 µA All switches on, ISW = 5mA 3.0 2.0 A VSIG duty cycle < 0.1% DC Offset Switch on* 500 2.0 50 Average VNN supply current % VSIG = VPP-10V and VNN+10V 100 Average VPP supply current kHz No Load Duty cycle = 50% VPP = +40V VNN = -160V 7.0 8.0 4.0 5.5 5.5 4.0 5.0 5.5 VPP = +160V VNN = -40V 6.5 7.0 8.0 VPP = +40V VNN = -160V 4.0 5.0 5.5 4.0 5.0 5.5 4.0 4.0 4.0 mA fCLK = 5MHz, VDD = 5.0V 10 10 10 µA All logic inputs are static mA mA VPP = +100V VNN = -100V VPP = +160V VNN=-40V IDDQ ISOR Data out source current 0.45 0.45 0.70 0.40 mA VOUT = VDD-0.7V ISINK Data out sink current 0.45 0.45 0.70 0.40 mA VOUT = 0.7V CIN Logic input capacitance 10 10 10 All output switches are turning On and Off at 50KHz with no load. VPP = +100V VNN = -100V Average VDD supply current Quiescent VDD supply current IDD VPP = +160V VNN = -40V µA 6.5 IPP VPP = +100V VNN = -100V 15 300 Output switching frequency VPP = +40V VNN = -160V Output Switch to RGND IRINT = 0.5mA DC Offset Switch off* 3.0 Ω ISIG = 5mA ISIG = 200mA ISIG = 5mA ISIG = 200mA ISIG = 5mA ISIG = 200mA KΩ 10 fSW 20 Conditions Max 30 1.0 Switch output peak current Min 25 25 5.0 ISW IPPQ Min 50 INNQ INNQ Max 35 Quiescent VPP supply current Quiescent VNN supply current Quiescent VPP supply current Quiescent VNN supply current IPPQ +70°C Units Min RONS +25°C Parameter pF * See Test Circuits on page 5 NR102405 3 HV2701 AC Electrical Characteristics (over recommended operating conditions, VDD= 5.0V, tR= tF ≤ 5ns, 50% duty cycle, CLOAD= 20pF unless otherwise noted) 0°C Sym Parameter tSD Set Up Time Before LE Rises tWLE Time Width of LE Clock Delay Time to Data Out 50 tDO tWCL Time Width of CL 55 tSU Set Up Time Data to Clock tH Hold Time Data from Clock fCLK Clock Frequency tR,tF Min +25°C Max 25 Min Typ +70°C Max 25 56 Min Max 25 56 Units ns 56 ns 12 12 100 50 12 78 100 50 40 15 30 40 55 21 15 100 40 55 21 ns 21 7 2 7 2 VDD = 3.0V VDD= 5.0V ns 7 VDD = 3.0V VDD = 5.0V ns 15 Conditions VDD= 3.0V VDD= 5.0V 2 ns VDD= 3.0 or 5.0V 8 8 8 20 20 20 MHz Clock Rise and Fall Times 50 50 50 ns TON Turn ON Time* 5.0 5.0 5.0 µs VSIG = VPP-10V, RLOAD = 10KΩ TOFF Turn OFF Time* 5.0 5.0 5.0 µs VSIG = VPP-10V, RLOAD = 10KΩ 20 20 20 20 20 20 20 20 20 dv/dt Maximum VSIG Slew Rate -30 -30 -33 VDD= 3.0V VPP = +40V, VNN = -160V v/ns Off Isolation* KCR Switch Crosstalk* IID Output Switch Isolation Diode Current CSG(OFF) Off Capacitance SW to GND 5.0 17 5.0 12 17 CSG(ON) On Capacitance SW to GND 25 50 25 38 50 f = 5.0MHz, 1KΩ//15pF load dB -58 -58 -60 -60 -58 -70 f = 5.0MHz, 50Ω load -60 300 dB f = 5.0MHz, 50Ω load 300 mA 300ns pulse width, 2.0% duty cycle 5.0 17 pF 0V, f = 1.0MHz 25 50 pF 0V, f = 1.0MHz 300 +VSPK VPP = +40V, VNN = -160V, RLOAD = 50ohm 150 -VSPK +VSPK Output Voltage Spike* 150 mV -VSPK +VSPK VPP= +40V, VNN= -160V, VSIG= 0V 820 Charge Injection* VPP = +100V, VNN = -100V, RLOAD = 50ohm VPP = +160V, VNN = -40V, RLOAD = 50ohm 150 -VSPK QC VPP = +100V, VNN = -100V VPP = +160V, VNN = -40V -30 KO VDD= 5.0V pC 600 VPP= +100V, VNN= -100V, VSIG= 0V VPP= +160V, VNN= -40V, VSIG= 0V 350 * See Test Circuits on page 5 NR102405 4 HV2701 HV2701 Test Circuits VPP-10V VPP-10V Open PP RGND PP RGND PP DD RGND PP DD PP DC Offset Switch ON/OFF Switch Off Leakage per Switch PP DD TURN (TON/TOFF) ON/OFF TIME RGND RGND RGND PP PP PP DD PP PP DD OFF Isolation Output Switch Isolation Diode Current PP DD Switch Crosstalk RGND RGND PP PP PP DD Q = 1000pF x ΔVOUT Charge Injection PP DD Output Voltage Spike NR102405 5 HV2701 Logic Function Table LATCH ENABLE CLOCK INPUT DATA Notes: 1. 2. 3. 4. 5. 6. OUTPUT SWITCH Th 16 switches operate independently. Serial data is clocked in on the L to H transition of the CLK. All 16 switches go to a state retaining their latched condition at the rising edge of LE. When LE is low the shift registers data flow through the latch. DOUT is high when data in the register 15 is high. Shift registers clocking has no effect on the switch states if LE is high. The CL clear input overrides all other inputs. Logic Timing Waveforms DN–1 DN DATA IN 5 0% LE 50% DN+1 50% 50% t WLE t SD 50% CLOCK t SU 50% th t DO DATA O UT 50% t ON t OFF V OUT (TYP ) OFF 90% 1 0% ON CLR 5 0% 5 0% t WCL NR102405 6 HV2701 Pin Configuration and Package Outline - 48-Lead TQFP (1.4mm) (FG) Pin Name TQFP-48 SW4B 3 SW4A 4 SW3B 5 SW3A 6 SW2B 7 SW2A 8 SW1B 9 SW1A 10 SW0B 11 SW0A 12 VNN 13 VPP 15 GND 17 VDD 18 DIN 19 CLK 20 LE 21 CLR 22 DOUT 23 RGND 24 SW15B 25 SW15A 26 SW14B 27 SW14A 28 SW13B 29 SW13A 30 SW12B 31 SW12A 32 SW11B 33 SW11A 34 SW10B 37 SW10A 38 SW9B 39 SW9A 40 SW8B 41 SW8A 42 SW7B 43 SW7A 44 SW6B 45 SW6A 46 SW5B 47 SW5A 48 NC 1,2,14,16,35,36 0.354 ± 0.01 (8.992 ± 0.254) 0.008 ± 0.003 (0.2032 ± 0.0762) 0.275 ± 0.004 (6.985 ± 0.102) 0.354 ± 0.01 (8.992 ± 0.254) Pin 1 Pin 12 0.020 BSC (0.508) 0.275 ± 0.004 (6.985 ± 0.102) 0.055 ± 0.004 (1.397 ± 0.102) 0.039 (0.991) Measurement Legend = NC = No Internal Connection. Doc.# DSFP - HV2701 NR102405 7 0° − 7° 0.059 ± 0.004 (1.498 ± 0.102) 0.024 ± 0.008 (0.610 ± 0.203) Dimensions in Inches Dimensions in Millimeters