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Maxim Integrated - Six-Channel Digital Isolator

Numéro de référence MAX14850
Description Six-Channel Digital Isolator
Fabricant Maxim Integrated 
Logo Maxim Integrated 





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MAX14850 fiche technique
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 monolithic
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; each 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 buses, I2C
buses, RS-232, RS-485/RS-422 buses, and general-pur-
pose isolation. When used as a bus isolator, extra chan-
nels are available for power monitoring and reset signals.
The MAX14850 is available in a narrow body,16-pin SOIC
(10mm x 4mm) package (for which an evaluation kit is
available) and 16-pin QSOP (3.9mm x 4.94mm) package.
The packages are 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
● Protection from High-Voltage Environments
• 600VRMS Isolation for 60 Seconds
• Short-Circuit Protection on Unidirectional Outputs
• 200VRMS Working Isolation Voltage for 50 Years
● 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
● Compatible with Many Interface Standards
• I2C
• 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
VCCA VCCB
5V
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
PMBus is a trademark of SMIF, Inc.
600VRMS
ISOLATION
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s
website at www.maximintegrated.com.
19-6161; Rev 2; 11/14

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