HV2621/R4X

HV2621/HV2721/HV2722 300V, Low-Charge Injection, 16-Channel, High-Voltage Analog Switch Features General Description • • • • • • • • • • • The HV2621/HV2721/HV2722 devices are 300V, low-charge injection, 16-channel, high-voltage analog switches. These devices are designed for use in applications requiring high-voltage switching controlled by low-voltage control signals, such as medical ultrasound imaging, piezoelectric transducer drivers. HV2621/HV2721 are almost identical to HV2601/2701 but have larger signal range. If the VPP/VNN = ±150V, HV2621/HV2721/HV2722 can pass the analog signal up to ±135V. The HV2721 has integrated bleed resistors on both sides of the switches. HV2722 has integrated bleed resistors on one side, SWxA only. HV2621 has no bleed resistors. The bleed resistor eliminates voltage build-up on capacitive loads such as piezoelectric transducers. Input data are shifted into a 16-bit shift register that can then be retained in a 16-bit latch. To change all the switch state at the same time, the latch enable bar should be left high until all bits are clocked in. The input data are clocked in at the rising edge of the clock. After all bits are clocked in to the shift register, a negative pulse of the latch enable bar changes all the switch ON/OFF states defined by input data at the same time. Using the HVCMOS technology, these devices combine 300V high-voltage bilateral DMOS switches and low-power CMOS logic to provide efficient control of high-voltage analog signals. These devices are suitable for various combinations of high-voltage supplies, e.g., VPP/VNN: +60V/-240V, +150V/-150V, and +260V/-40V. 300V,16-Channel High-Voltage Analog Switch 3.3V or 5.0V CMOS Input Logic Level 33 MHz Data Shift Clock Frequency Very Low Quiescent Current (10 µA) Low Parasitic Capacitance DC to 50 MHz Analog Small-Signal Frequency -60 dB Typical Off Isolation at 5.0 MHz Excellent Noise Immunity Cascadable Serial Data Register with Latches Flexible Operating Supply Voltage Integrated Bleed Resistors on the Outputs (both sides for HV2721, one side only for HV2722) Applications • Medical Ultrasound Imaging • Nondestructive Testing (NDT) Metal Flaw Detection • Multi-Layer Printed Circuit Board (PCB) Tester • Piezoelectric Transducer Drivers • Inkjet Printer Head • Optical MEMS Module Package Types 64 HV2621/HV2721/HV2722 9x9x1.0mm QFN (TOP VIEW) 1  2019 Microchip Technology Inc. DS20006082A-page 1 HV2621/HV2721/HV2722 Block Diagram Latches CLK Level Shifter Output Switches Bleed Resistors D LE CLR SW0A D LE CLR SW1A D LE CLR SW2A D LE CLR SW14A D LE CLR SW15A SW0B SW1B SW2B 16-Bit Shift Register DIN DOUT VDD GND LE CLR SW14B SW15B VNN VPP RGND HV2721 has bleed resistors at SWxA and SWxB HV2722 has bleed resistors at SWxA only DS20006082A-page 2  2019 Microchip Technology Inc. HV2621/HV2721/HV2722 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † Logic Supply Voltage (VDD).......................................................................................................................... -0.5V to 6.5V Differential Supply Voltage (VPP-VNN).......................................................................................................................330V Positive Supply Voltage (VPP) .............................................................................................................-0.5V to VNN+300V Negative Supply Voltage (VNN) ................................................................................................................. -300V to +0.5V Logic Input Voltage (VIN).....................................................................................................................-0.5V to VDD +0.3V Analog Signal Range (VSIG)............................................................................................................................ VNN to VPP Peak Analog Signal Current/Channel (IPK) ...................................................................................................................3A † Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational sections of this specification is not intended. Exposure to maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATING CONDITIONS (NOTES 1, 2, 3) Parameter Sym. Min. Typ. Max. Units VDD 3 — 5.5 V VPP-VNN 60 — 300 V Positive Supply Voltage VPP 60 — 260 V Negative Supply Voltage VNN -240 — 0 V High-Level Input Voltage VIH 0.9VDD — VDD V Logic Supply Voltage Differential Supply Voltage Low-Level Input Voltage Analog Signal Voltage Peak-to-Peak Note 1: 2: 3: VIL 0 — 0.1VDD V VSIG VNN+15 — VPP-15 V Conditions Recommended power up sequence is VDD, VPP and VNN. Power down is in reverse order. VSIG must be VNN ≤ VSIG ≤ VPP or floating during power up/down transition. Rise and fall times of power supplies, VDD, VPP and VNN should be greater than 1.0 ms. DC ELECTRICAL CHARACTERISTICS Unless otherwise specified, VPP = +150V, VNN = -150V, VDD = 5.0V, TA = 25°C. Boldface specifications apply over the full operating temperature range. Parameter Small Signal Switch On-Resistance Sym. RONS Min. Typ. Max. Units Conditions/Comments — 26 48 Ω ISIG = 5 mA — 22 32 Ω ISIG = 150 mA — 22 30 Ω ISIG = 5 mA — 18 27 Ω ISIG = 150 mA — 20 30 Ω ISIG = 5 mA — 16 27 Ω ISIG = 150 mA VPP = +60V, VNN = -240V VPP = +150V, VNN = -150V VPP = +260V, VNN = -40V Small Signal Switch On-Resistance Matching ∆RONS — 5 20 % ISIG = 5 mA, VPP = +150V, VNN = -150V Large Signal Switch On-Resistance RONL — 17 — Ω VSIG = VPP-15V, ISIG =1A Value of Output Bleed Resistor (HV2721/HV2722 Only) RINT 30 50 70 kΩ Output switch to RGND, IRINT = 0.5 mA Switch Off Leakage per Switch ISOL — 1 15 μA VSIG = VPP-15V, VNN+15V. See Figure 3-1 — 1 10 mV RLOAD = 35 kΩ (HV2621), 70 kΩ (HV2722), No load (HV2721), see Figure 3-2 DC Offset Switch Off DC Offset Switch On  2019 Microchip Technology Inc. VOS — 1 10 DS20006082A-page 3 HV2621/HV2721/HV2722 DC ELECTRICAL CHARACTERISTICS (CONTINUED) Unless otherwise specified, VPP = +150V, VNN = -150V, VDD = 5.0V, TA = 25°C. Boldface specifications apply over the full operating temperature range. Parameter Sym. Min. Typ. Max. Units Quiescent VPP Supply Current IPPQ — 10 50 μA Quiescent VNN Supply Current INNQ — 10 50 μA Quiescent VPP Supply Current IPPQ — 10 50 μA Quiescent VNN Supply Current INNQ — 10 50 μA Switch Output Peak Current ISW 2.0 3.0 — A Output Switching Frequency fSW — — 50 kHz Duty cycle = 50% (Note 1) — — 3 mA VPP = +60V, VNN = -240V — — 4 mA VPP = +150V, VNN = -150V — — — 6 mA VPP = +260V, VNN = -40V — — 3 mA VPP = +60V, VNN = -240V — — 4 mA VPP = +150V, VNN = -150V — — — 6 mA VPP = +260V, VNN = -40V IDD — — 4 mA fCLK = 5 MHz, fDIN= 2.5 MHz IDDQ — — 10 μA All logic inputs are static Average VPP Supply Current Average VNN Supply Current Average VDD Supply Current Quiescent VDD Supply Current IPP INN Conditions/Comments All switches off All switches on, ISW = 5.0 mA VSIG duty cycle