MAX14802: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
MAX14800, MAX14801, MAX14802, MAX14803: Functional Diagram
Applications/Uses
  • Printers
  • Ultrasound Imaging
DataSheet
titleDownload file
MAX14802-MAX14803A Data SheetMAX14802-MAX14803A.pdf
Parametrics
Part NumberFunctionsConfig.ChannelsNormal PositionVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSUPPLY (Dual)
(±V)
VSUPPLY (Dual)
(±V)
RON
(Ω)
Bandwidth
(MHz)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxminmaxmaxmaxminmaxSee Notes
MAX14803ASwitchSPST16Open402004016020502000500050003611LQFP/48
WLP/110
$24.39 @1k
MAX14802LQFP/48$21.23 @1k
MAX14803LQFP/48
WLP/110
$24.39 @1k
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX14802CCM+ActiveLQFP,;48 pin;LQFP;0°C to +70°CLead Free
MAX14802CCM+TActiveLQFP;0°C to +70°CSee data sheet
MAX14802ECM+ActiveLQFP,;48 pin;LQFP;-40°C to +85°CLead Free
MAX14802ECM+TActiveLQFP,;48 pin;LQFP;-40°C to +85°CLead Free
MAX14802-MAX14803A.pdf MAX14803A
MAX14802-MAX14803A_cn.pdf MAX14803A
MAX14802.pdf MAX14802
MAX14802-MAX14803A_cn.pdf MAX14803A