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MAX14803, MAX14803A：Low-Charge-Injection, 16-Channel, High-Voltage Analog Switches

Series Offers Low-Charge Injection, Integrated Overvoltage Protection, Low Capacitance, and Fast SPI Interface

The MAX14802/MAX14803/MAX14803A provide high-voltage switching on 16 channels for ultrasonic imaging and printer applications. The devices utilize HVCMOS process technology to provide 16 high-voltage low-charge-injection SPST switches, controlled by a digital interface. Data is clocked into an internal 16-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. The MAX14802/MAX14803/MAX14803A operate with a wide range of high-voltage supplies including VPP/VNN = +100V/-100V, +200V/0V, or +40V/-160V. The digital interface operates from a separate +2.7V to +5.5V VDD supply. Digital inputs DIN, CLK, active-low LE, and CLR operate on the VDD supply voltage. The MAX14803/MAX14803A provide integrated 35kΩ bleed resistors on each switch terminal to discharge capacitive loads. The MAX14802/MAX14803/MAX14803A provide integrated clamping diodes for overvoltage protection against positive overshoot. The MAX14802 is available in a 48-pin TQFP package and is specified for commercial 0°C to +70°C and extended -40°C to +85°C temperature ranges. The MAX14803 is available in a 48-pin TQFP package and is specified for the commercial 0°C to +70°C temperature range. The MAX14803A is available in the 110-bump wafer level package (WLP) and is specified at the -40°C to +85°C temperature range.

Key Features Integrated Overvoltage Protection 20MHz Serial Interface (5V) HVCMOS Technology for High Performance Individually Programmable High-Voltage Analog Switches Very Low 5µA (typ) Quiescent Current DC-to-20MHz Low-Voltage Analog Signal Frequency Range 2.7V to 5.5V Logic Supply Voltage Low-Charge Injection, Low-Capacitance RL Switches -77dB (typ) Off-Isolation at 5MHz (RL = 50Ω) Daisy-Chainable Serial Interface Flexible High-Voltage Supplies (VPP - VNN = 250V)

MAX14800, MAX14801, MAX14802, MAX14803: Functional Diagram Applications/Uses Printers Ultrasound Imaging

DataSheet

Parametrics

Quality and Environmental Data

• MAX14803.pdf

Ordering Information