HV238

*Absolute Maximum Ratings are those values beyond which damage to the device may occur.  Functional operation under these conditions is not implied.  Continuous  operation of the device at the absolute rating level may affect device reliability. 

The Supertex HV238 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. It 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 ofHV238 help to significantly reduce voltage built up on capacitive loads such as piezoelectric transducers connected to the outputs.