The MP4833A is a 32-channel, high-voltage, single-pole, single-throw, SPST, analog switch with integrated output bleed resistors designed for medical ultrasound imaging applications. The MP4833A is designed to multiplex transmit and receive voltages to and from multiple piezoelectric transducers (PZT).
The output switches are controlled by a 32-bit serial shift register followed by a 32-bit data latch. A data out pin (DOUT) is provided to allow for multiple devices to be cascaded together. This helps minimize the number of input/output (I/O) control lines. A logic high in the data latch turns on the corresponding analog switch. A logic low turns off the corresponding analog switch.
The MP4833A does not require any high-voltage supplies. Only two low-voltage supplies are required (3.3V and 10V). The analog switch can block or pass analog voltages up to ±90V with peak currents of up to ±2.0A.
The MP4833A is available in a BGA-80 (7mmx7mm) package.