EV4865A-BD-00A

The EV4865A-BD-00A is an evaluation board designed to demonstrate the capabilities of the MP4865A, a high-voltage, 64-channel analog switch. The MP4865A is designed for medical ultrasound applications. It can also be used for non-destructive tests (NDTs), as the application is very similar to medical ultrasound applications.

The high-voltage analog switches are used to multiplex the transmitter and receiver circuitries to different piezoelectric transducer (PZT) elements. The MP4865A has a resistor that is connected between ground and the output pins (SWOUTx). This ensures that a significant DC voltage does not build up across the PZT element. The switches can be turned on/off via a serial 64-bit shift register. The serial control interface minimizes the number of input/output (I/O) connections.

The MP4865A is available in a BGA-144 (10mmx10mm) package.