MAX14850 Datasheet, PDF (1/16 Pages) Maxim Integrated Products – Six-Channel Digital Isolator

19-6161; Rev 0; 3/12
EVALUATION KIT AVAILABLE
MAX14850
Six-Channel Digital Isolator
General Description
The MAX14850 is a six-channel digital isolator utilizing
Maxim’s proprietary process technology, whose mono-
lithic design provides a compact and low-cost transfer
of digital signals between circuits with different power
domains. The technology enables low power consumption
and stable high-temperature performance.
The four unidirectional channels are each capable of
DC to 50Mbps, with two of the four channels passing
data across the isolation barrier in each direction. The
two bidirectional channels are open drain and each is
capable of data rates from DC to 2Mbps.
Independent 3.0V to 5.5V supplies on each side of the
isolator also make it suitable for use as a level translator.
The MAX14850 can be used for isolating SPI busses, I²C
busses with clock stretching, RS-232, RS-485/RS-422
busses, and general-purpose isolation. When used as
a bus isolator, extra channels are available for power
monitoring and reset signals.
The MAX14850 is available in a narrow body,16-pin SO
(10mm x 4mm) package. The SO package is specified
over the -40NC to +125NC automotive temperature range.
Applications
Industrial Control Systems
I²C, SPI, SMBus, PMBusK Interfaces
Isolated RS-232, RS-485/RS-422
Telecommunication Systems
Battery Management
Medical Systems
Benefits and Features
S Protection from High-Voltage Environments
 600VRMS Isolation for 60 Seconds
 Short-Circuit Protection on Unidirectional
Outputs
S Complete Digital Isolation Solution
 Four Unidirectional Signal Paths: 2-In/2-Out
 Two Bidirectional Open-Drain Signal Paths
 50Mbps (max) Unidirectional Data Rate
 2Mbps (max) Bidirectional Data Rate
S Compatible with Many Interface Standards
 I²C With Clock Stretching
 SPI
 RS-232, RS-422/RS-485
 SMBus, PMBus Interfaces
Ordering Information appears at end of data sheet.
Typical Operating Circuits
3.3V
0.1µF
0.1µF
5V
VCCA VCCB
RPUA
RPUA
MAX14850
GPIO1
GPIO2
µC SCLK
MOSI
MISO
GPIO3
VCCB MONITOR
I/OA1
I/OA2
INA1
INA2
OUTA1
OUTA2
I/OB1
I/OB2
OUTB1
OUTB2
INB1
INB2
GNDA GNDB
RPUB
RPUB
RST
CS
SCLK ADC
MOSI
MISO
For related parts and recommended products to use with this part,
refer to: www.maxim-ic.com/MAX14850.related
600VRMS
ISOLATION
PMBus is a trademark of SMIF, Inc.
Typical Operating Circuits continued at end of data sheet.
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For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.