Specifications

Sensors
Sensor communications interface
www.digikey.com/maxim-industrial 87
Benefits
• Industry’s smallest package for
compact designs
– Tiny 2.5mm x 2.5mm WLP and 4mm x
4mm TQFN
– Requires minimal external components
• Integration of all high-voltage
functions optimizes sensor circuit parti-
tioning, saves board space
– Integrated high-voltage regulators
– Undervoltage detection
– Two output drivers and two receivers
• Single solution fits multiple application
requirements, reduces inventory
complexity
– Suitable for sensors and actuators
– Suitable for binary sensor applications
– Dual outputs and inputs fit most sensor
needs
– Dual output supplies power signal
conditioning
MAX14820*
The MAX14820 is a transceiver with a 24V binary interface for sensors
and actuators. Designed for IO-Link device applications, it supports
all the specified IO-Link data rates. The MAX14820 contains addi-
tional 24V digital inputs and outputs (I/Os). Two regulators generate
common sensor signals and conditioning power requirements: 5V
and 3.3V. The drivers are configurable to PNP, NPN, and push-pull.
Configuration, monitoring, and alarms are accessed through an SPI™
interface. The device is thermally self-protected and all 24V interface
pins are protected against reverse-polarity, shorts, and ESD.
Reduce PCB footprint with an IO-Link/binary sensor interface
The MAX14820 IO-Link/binary-sensor interface reduces PCB footprint.
MICROCONTROLLER
V
CC
GPIO1
RTS
TX
RX
IRQ
GND
RX
WU
LO
TXEN
TXC
GND
C/Q
DO
V
CC
LDOINV
5
3.3V
5V
1
2
3
4
L+
L-
DI
LI
1μF
V
L
V33
TXQ
V
P
0.1μF
0.1μF
GPIO2
UV
SDI
SDO
SCLK
SDO
SCLK
SDI
CS CS
10kΩ
MAX14820*
0.1μF
*Future product—contact factory for availability.