Low-Charge-Injection, 16-Channel, High-Voltage Analog Switches
Series Offers Low-Charge Injection, Integrated Overvoltage Protection, Low Capacitance, and Fast SPI Interface
DescriptionThe 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.
- 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)
- Ultrasound Imaging
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|See All Switches and Multiplexers (Mid and High Voltage) (299)|
| Pricing Notes: |
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Technical DocumentsApp Note 5299 Selecting the Right CMOS Analog Switch
Tutorial 4696 Overview of Ultrasound Imaging Systems and the Electrical Components Required for Main Subfunctions
Quality and Environmental DataProduct Reliability Reports: MAX14802.pdf
Lead-Free Package Tin (Sn) Whisker Reports
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- Optimized for Compact and Portable Applications
- Embedded Digital Resources for Beamforming