HV2303 Datasheet | Supertex

Features - HVCMOS technology for high performance - Integrated bleed resistors on the outputs - 3.3V or 5.0V CMOS input logic level - 20MHz data shift clock frequency - Very low quiescent power dissipation - 10µA .. - Low parasitic capacitance - DC to 10MHz analog signal frequency - -60d B typical off-isolation at 5.0MHz - CMOS logic circuitry for low power - Excellent noise immunity - Cascadable serial data register with latches - Flexible operating supply voltages General Description The Supertex HV2303 is a low charge injection 8-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 signals, such as medical ultrasound imaging, piezoelectric transducer driver, and printers. The bleed resistors eliminate voltage built up on capacitive loads such as piezoelectric transducers. Data is input into an 8-bit shift register that can then be retained in an 8-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 is clocked in during the rising edge of the clock. Using HVCMOS technology, this device bines high voltage bilateral DMOS switches and low power CMOS logic to provide efficient control of high voltage analog signals. The device is suitable for various binations of high voltage supplies, e.g., VPP/VNN: +40V/-140V, +90V/-90V, and +140V/-40V. Applications - - - - - Medical ultrasound imaging NDT metal flaw detection Piezoelectric transducer drivers Inkjet printer heads Optical MEMS modules Block Diagram LATCHES D LE CLR LEVEL OUTPUT SHIFTERS & SWITCHES CHARGE CONTROL SW0 D LE CLR SW1 8-BIT SHIFT REGISTER D LE CLR SW2 DOUT D LE CLR SW6 D LE CLR SW7 VDD GND VNN VPP RGND Ordering Information Package Options Device 48-Lead...