Описание
TheMAX14801 provide highvoltage switching on 16 channels for ultrasonic imaging and printer applications. The devices utilize HVCMOS process technology to provide 16 high-voltage lowcharge-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 MAX14801 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, LE, and CLR operate on the VDD supply voltage. The MAX14801 provide integrated 35kO bleed resistors on each switch terminal to discharge capacitive loads. The MAX14801 provide integrated clamping diodes for overvoltage protection against positive overshoot. The MAX14801 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 MAX14800 is available in a 48-pin TQFP package and is specified for the commercial 0°C to +70°C temperature range. TheMAX14800 is available in the 110-bump wafer level package (WLP) and is specified at the -40°C to +85°C temperature range.
- 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 = 50O)
- Daisy-Chainable Serial Interface
- Flexible High-Voltage Supplies (VPP – VNN = 250V)
