MP4832A

MP4832A

32-Channel, High-Voltage Analog Switch with Output Bleed Resistors

Description

The MP4832A is a 32-channel, high-voltage, single-pole single-throw (SPST) analog switch with integrated output bleed resistors that is designed for medical ultrasound imaging applications. It can multiplex the transmission and receiving of voltages from multiple piezoelectric transducers (PZTs).

The output switches are controlled by a 32-bit serial shift register followed by a 32-bit data latch. A data out pin (D_OUT) allows for multiple devices to be cascaded together. This minimizes 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 in the data latch turns off the corresponding analog switch.

The MP4832A does not require any high-voltage supplies. It uses two low-voltage supplies: 3.3V and 12V. The analog switch can block or pass analog voltages up to ±90V with peak currents of up to ±2A.

The MP4832A is available in a QFN-72 (10mmx10mm) package.

Features & Benefits

No High-Voltage Supplies Required
32 Channels
Up to ±90V Analog Signals
14Ω Typical Switch Resistance
±2A Typical Switch Peak Current
Off-Isolation of -66dB at 5MHz
Integrated Output Bleed Resistor
80MHz Clock Frequency
Available in a QFN-72 (10mmx10mm) Package

Active Part Numbers:

MP4832AGRD-T

Related Products

EV4832A-RD-00A 180V, 32-Channel Analog Switch Evaluation Board

The EV4832A-RD-00A is an evaluation board for the MP4832A, a high-voltage, 32-channel analog switch. The MP4832A 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.

The high-voltage analog switches are used to multiplex the transmitter and receiver circuitries to different piezoelectric transducer (PZT) elements. The MP4832A has a resistor to ground on the output pins, SWout. This helps ensure that there is no significant DC voltage built up across the PZT element. The switches can be turned on or off via a serial 32-bit shift register. The serial control interface helps minimize the number of input/output (I/O) connections.

$50.00
+ tax