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MAX14802/MAX14803/
MAX14803A
Low-Charge Injection, 16-Channel,
High-Voltage Analog Switches
General Description
Features
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 reg-
ister 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.
● 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
The MAX14802/MAX14803/MAX14803A operate with a
wide range of high-voltage supplies including V /V
= +100V/-100V, +200V/0V, or +40V/-160V. The digital
interface operates from a separate +2.7V to +5.5V V
● 2.7V to 5.5V Logic Supply Voltage
PP NN
● Low-Charge Injection, Low-Capacitance R Switches
L
DD
● -77dB (typ) Off-Isolation at 5MHz (R = 50Ω)
L
supply. Digital inputs DIN, CLK, LE, and CLR operate on
● Daisy-Chainable Serial Interface
the V supply voltage.
DD
● Flexible High-Voltage Supplies (V
- V
= 250V)
PP
NN
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 pro-
tection against positive overshoot.
The MAX14802 is available in a 48-pin LQFP package
and is specified for commercial 0°C to +70°C and extend-
ed -40°C to +85°C temperature ranges.
The MAX14803 is available in a 48-pin LQFP package
and is specified for the commercial 0°C to +70°C tem-
perature range.
Ordering Information/Selector Guide appear at end of data
sheet.
The MAX14803A is available in the 110-bump wafer level
package (WLP) and is specified at the -40°C to +85°C
temperature range.
Applications
● Ultrasound Imaging
● Printers
19-4484; Rev 5; 2/21