General Description

The MAX4800A/MAX4802A provide high-voltage switching on eight channels for ultrasonic imaging and printer applications. The devices utilize BCDMOS process technology to provide eight high-voltage low-charge-injection SPST switches, controlled by a 20MHz serial interface. Data is clocked into an internal 8-bit shift register and retained by a programmable latch with enable and clear inputs. A power-on reset function ensures that all switches are open on power-up.

Features

● Fast SPI™ Interface 20MHz

● Pin-Compatible Replacement for Supertex HV2203 (MAX4800A)

● Pin-Compatible Replacement for Supertex HV2303 (MAX4802A)

● Flexible High-Voltage Supplies Up to VPP - VNN = 200V

● Low-Charge-Injection, Low-Capacitance 22Ω Switches

● DC to 50MHz Analog-Signal Frequency Range

● -77dB Off-Isolation at 5MHz

● Low 10µA Quiescent Current

● Integrated Bleed Resistors (MAX4802A Only)

● Available in Standard PLCC, LQFP, and CSBGA Packages

Applications

● Ultrasound Imaging

● Printers