MAX14937:Two Channel, 5kVRMS I2C Isolator

Industry's Most Flexible Digital Isolators Allow Direct Interfacing to Low-Voltage (2.5V) Devices

The MAX14937 is a two-channel, 5kVRMS I2C digital isolator utilizing Maxim’s proprietary process technology. For applications requiring 2.75kVRMS of isolation, see the MAX14933 data sheet. The device transfers digital signals between circuits with different power domains at ambient temperatures up to +125°C. The device offers two bidirectional, open-drain channels for applications, such as I2C, that require data to be transmitted in both directions on the same line. The device features independent 2.25V to 5.5V supplies on each side of the isolator. The MAX14937 operates from DC to 1.7MHz and can be used in isolated I2C busses with clock stretching. The MAX14937 is available in a 16-pin, wide-body (10.3mm x 7.5mm) SOIC package, and is rated for operation at ambient temperatures of -40°C to +125°C.

Key Features
  • Robust Galvanic Isolation of Digital Signals
    • Withstands 5kVRMS for 60s (VISO)
    • Continuously Withstands 848VRMS (VIOWM)
    • 1200VPEAK Repetitive Peak Voltage (VIORM)
    • Withstands ±10kV Surge per IEC 61000-4-5
  • Interfaces Directly with Most Micros and FPGAs
    • Accepts 2.25V to 5.5V Supplies
    • Bidirectional Data Transfer from DC to 1.7MHz
  • Low Power Consumption
    • 5.3mA per Channel Typical at 1.7MHz
MAX14937: Functional Diagram
MAX14937: Functional Diagram
Applications/Uses
  • Battery Management
  • I?C, SMBus, PMBus? Interfaces
  • Instrumentation
  • Power Supplies
DataSheet
titleDownload file
MAX14937?Data SheetMAX14937.pdf
Parametrics
Part NumberUni-directional ChannelsUni-directional InputsUni-directional InputsBi-directional ChannelsBi-directional Data Rate
(Mbps)
Insulation RatingBi-directional Propagation
(ns)
VSUPPLY
(V)
VSUPPLY
(V)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
Side ASide BmaxmaxminmaxSee Notes
MAX1493700023.45000 VRMS1152.255.5-40 to +125SOIC HYBRID (W)/16$3.29 @1k
Design kits & evaluation modules
Quality and Environmental Data
Related Products
  • MAX14933:Two-Channel, 2.75kVRMS I2C Isolator
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX14937AWE+ActiveSOIC HYBRID (W),;16 pin;SOIC H;-40°C to +125°CSee data sheet
MAX14937AWE+TActiveSOIC HYBRID (W),;16 pin;SOIC H;-40°C to +125°CSee data sheet
MAX14937.pdf MAX14937
MAX14937.pdf MAX14937
MAX14937.pdf MAX14937
MAX14937.pdf MAX14937
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