• HVCMOS® technology for high performance
• 220V operating conditions
• 22O typical output on-resistance
• Integrated bleed resistors on the outputs
• 3.3V and 5.0V CMOS logic compatibility
• Very low quiescent power dissipation (-10µA)
• -45dB min off isolation at 7.5MHz
• Low parasitic capacitance
• Excellent noise immunity
• Flexible operating supply voltages
• 48-lead LQFP package

HV2731 is a 220V, 16-channel, high voltage, analog switch integrated circuit (IC) with output bleed resistors (RINT). The output switches are configured as 2 sets of 8 single pole, single throw analog switches. The IC is intended to be used in applications requiring high voltage switching controlled by low voltage control signals, such as ultrasound imaging. The 2 sets of 8 analog switches are controlled by 2 input logic controls, DIN1 and DIN2. A logic high on DIN1 will turn on switches 0 to 7 and a logic high on DIN2 will turn on switches 8 to 15. The bleed resistors help to significantly reduce voltage built up on capacitive loads such as piezoelectric transducers connected to the outputs. 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.