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. Input data are 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 is 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.The device is suitable for various combinations of high voltage supplies, e.g., VPP/VNN: +40V/-160V, +100V/-100V, and +160V/-40V.

  HVCMOS technology for high performance

  Integrated bleed resistors on the outputs

  16-channel 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 50MHz small signal frequency response

  -60dB 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