HV2701

HV2601/HV2701 Low-Charge Injection, 16-Channel, High-Voltage Analog Switch Features High-Voltage CMOS Technology for High Performance 16-Channel High-Voltage Analog Switch 3.3V Input Logic Level Compatible 20 MHz Data Shift Clock Frequency Very Low Quiescent Power Dissipation (–10 µA) Low Parasitic Capacitance DC to 50 MHz Small Signal Frequency Response –60 dB Typical OFF-Isolation at 5.0 MHz CMOS Logic Circuitry for Low Power Excellent Noise Immunity Cascadable Serial Data Register with Latches Flexible Operating Supply Voltages Integrated Bleed Resistors on the Outputs (HV2701 Only) Applications Medical Ultrasound Imaging NDT Metal Flaw Detection Piezoelectric Transducer Drivers Optical MEMS Modules Package Types† General Description The HV2601/HV2701 devices are low-charge injection, 16-channel, high-voltage analog switch integrated circuits (ICs). These devices are designed for use in applications requiring high-voltage switching controlled by low-voltage control signals, such as medical ultrasound imaging and other piezoelectric transducer drivers. The HV2701 has integrated bleed resistors which eliminate voltage build-up on capacitive loads, such as piezoelectric transducers. These ICs shift input data 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 ed...