
Maxim Integrated
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