MP4864A

MP4864A

64-Channel, High-Voltage, SPST Analog Switch with Output Bleed Resistors

Datasheet

Description

The MP4864A is a 64-channel, high-voltage, single-pole single-throw (SPST) analog switch with integrated output bleed resistors designed for medical ultrasound imaging applications. It is designed to multiplex the transmit and receive voltages to and from multiple piezoelectric transducers (PZTs).

The output switches are controlled by a 64-bit serial shift register, followed by a 64-bit data latch. A data out pin (DOUT) allows multiple devices to be cascaded together. This minimizes the number of input/output (I/O) control lines. A logic high signal in the data latch turns on the corresponding analog switch; a logic low signal turns off the corresponding analog switch.

The MP4864A does not require any high-voltage supplies. It only requires 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 MP4864A is available in a BGA-144 (10mmx10mm) package.

Features & Benefits

No High-Voltage Supplies Required
64 Channels
Up to ±90V Analog Signals
14Ω Typical Switch Resistance
±2A Typical Switch Peak Current
Off-Isolation of -66dB at 5MHz
Integrated Output Bleed Resistors
80MHz Clock Frequency
Available in a BGA-144 (10mmx10mm) Package

Active Part Numbers:

MP4864AGBD

Related Products

EV4864A-BD-00A 180V, 64-Channel Analog Switch Evaluation Board

The EV4864A-BD-00A is an evaluation board designed to demonstrate the capabilities of the MP4864A, a high-voltage, 64-channel analog switch. The MP4864A is designed for medical ultrasound applications. It can also be used for non-destructive test (NDT) applications, which are 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 MP4864A has a resistor to ground on the output pins (SWout). 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 helps minimize the number of I/O connections.

$125.00
+ tax