PDF HV2733 Data sheet ( Hoja de datos )

Número de pieza	HV2733
Descripción	High Voltage Analog Switch
Fabricantes	Supertex
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No Preview Available ! Supertex inc. HV2733 16-Channel, Low Harmonic Distortion, High Voltage Analog Switch with Bleed Resistors Features ►► Low harmonic distortion ►► Integrated bleed resistors on the outputs ►► 3.3 or 5.5V CMOS input logic level ►► 20MHz data shift clock frequency ►► HVCMOS technology for high performance ►► Very low quiescent power dissipation (-10µA) ►► Low parasitic capacitance ►► DC to 50MHz small signal frequency response ►► CMOS logic circuitry for low power ►► Excellent noise immunity ►► Cascadable serial data register with latches ►► Flexible operating supply voltages General Description The Supertex HV2733 is a low charge injection, 16-channel, low harmonic distortion, high voltage analog switch integrated circuit (IC) intended for use in applications requiring high voltage switching, controlled by low voltage control signals, such as medical ultrasound imaging, piezoelectric transducer drivers, and printers. The bleed resistors eliminate voltage built up on capacitive loads such as piezoelectric transducers. The outputs are configured as single-pole double-throw analog switches. Data are shifted into a 8-bit shift register using an external clock. The LE latches the shift register data into the individual switch latches. A logic high connects a switch common YX to SWX. A logic low connects YX to SWX. A logic high in CLR resets all switches to SWX simultaneously. Applications ►► Medical ultrasound imaging ►► NDT metal flaw detection ►► Piezoelectric transducer drivers ►► Optical MEMS modules To reduce any possible clock feed-through noise, the latch enable bar (LE) 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. Block Diagram DIN 8-Bit CLK Shift Register Latches D LE CLR Level Shifters High Voltage Level Translator Output Switches D LE CLR High Voltage Level Translator D LE CLR High Voltage Level Translator SW0 Y0 SW0 SW1 Y1 SW1 SW2 Y2 SW2 DOUT D LE CLR High Voltage Level Translator SW6 Y6 SW6 D LE CLR High Voltage Level Translator SW7 Y7 SW7 VDD GND LE CLR VNN VPP RGND Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com 1 page HV2733 HV2733 Test Circuits ISOL VPP -10V RINT Open VOUT Open RGND VPP VPP VDD 5.0V VNN VNN GND Switch OFF Leakage VPP VNN RGND RINT VPP VNN VDD GND DC Offset ON/OFF VPP -10V RL 10kΩ VOUT RGND RINT 5.0V VPP VPP VDD VNN VNN GND TON / TOFF 5.0V VIN = 10VP-P @5.0MHz RGND RINT VPP VPP VDD VNN VNN GND KO = 20Log VOUT VIN Off Isolation VOUT RLOAD 5.0V VIN = 10VP-P @5.0MHz VSIG IID VNN RGND RINT VPP VPP VDD 5.0V VNN VNN GND Isolation Diode Current VPP VNN 1kΩ RINT RINT RINT RINT RGND VPP VDD 5.0V VNN GND VOUT 50Ω KCR = 20Log VOUT VIN Crosstalk VOUT +VSPK RGND RINT 50Ω -VSPK VPP VPP VDD 5.0V VNN VNN GND Output Voltage Spike Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com 5 5 Page

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