MAX14483
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MAX14483

6-Channel, Low-Power, 3.75kVRMS SPI Digital Isolator

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High Density, Low Power, Digital Isolator

Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $3.91
Features
  • Saves Space and Components
    • 6 Isolated Channels in a 20-SSOP Package
  • Low Propagation Delay on SCLK, SDI, and SDO
    • Up to 100MHz Clock, 200Mbps Data Rate
    • 10ns Typical Propagation Delay
    • 2ns Maximum Pulse Width Distortion
    • 250ps Typical Peak Jitter
  • Robust Galvanic Isolation of Digital Signals
    • Withstands 3.75kVRMS for 60s (VISO)
    • Continuously Withstands 450VRMS (VIOWM)
    • Withstands ±10kV Surge between GNDA and GNDB with 1.2/50μs Waveform
    • High CMTI (50kV/μs, Typical)
  • Flexible System Design
    • Wide 1.71V to 5.5V Voltage Range on Each Side
    • Active-Low SDOEN Control Pin for Sharing Isolators
    • Open-Drain Active-Low FAULT Channel for Shared Interrupt on Master Side
    • Auxiliary Channel for Timing or Control
  • Low Power Consumption
    • 1.53mW per Channel at SCLK = 10MHz with VDD = 3.3V
    • 0.77mW per Channel at SCLK = 10MHz with VDD = 1.8V
Additional Details
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The MAX14483 is a 6-channel, 3.75kVRMS digital galvanic isolator using Maxim’s proprietary process technology. The six signal channels are individually optimized for SPI applications and include very low propagation delay on the SDI, SDO, and SCLK channels. The SDO channel’s tri-state control is enabled by the active-low CS input as well as a second enable control input pin active-low SDOEN, allowing a single MAX14483 to isolate multiple SPI devices. To simplify system design, an open drain active-low FAULT output can be wire ORed with error outputs from other devices. In addition, an auxiliary channel (AUX) is available for passing timing or control signals from the master side to the slave side and power monitors (SAA, SBA) are provided for both power domains to signal if the opposite side of the isolator is ready for operation. Independent 1.71V to 5.5V supplies on each side of the isolator also make the device suitable for use as a level translator.

The MAX14483 has an isolation rating of 3.75kVRMS for 60 seconds and is available in a 20-pin SSOP package with 5.5mm of creepage and clearance. The package material has a minimum comparative tracking index (CTI) of 400V, which gives it a group II rating in creepage tables.

The MAX14483 is rated for operation at ambient temperatures of -40°C to +125°C.

Applications

  • Building Automation
  • General SPI-bus Isolation
  • Industrial Automation
  • Process Automation
  • Programmable Logic Controllers
  • Robotics
Part Models 2
1ku List Price Starting From $3.91

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX14483AAP+
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MAX14483AAP+T
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

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MAX14483EVKIT

Evaluation Kit for the MAX14483

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MAX14483EVKIT

Evaluation Kit for the MAX14483

Evaluation Kit for the MAX14483

Features and Benefits

  • Six Unidirectional Channels with Different Channel Direction Configuration and Data Speed (Up to 200Mbps)
  • On-Board LEDs Indication of Device Ready for Communication
  • SMA Connectors for Easy Connection to External Equipment
  • Wide Power Supply Voltage Range from 1.71V to 5.5V
  • Guaranteed Up to 3.75kVRMS Isolation for the 20-pin SSOP Package for 60s
  • -40°C to +125°C Temperature Range
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX14483 evaluation kit (EV kit) provides a proven design to evaluate the MAX14483, 6-channel, 3.75kVRMS, SPI digital isolator. The EV kit allows easy access to all six channels through either SMA connectors or test points. On-board LEDs on the ready signals (SAA and SBA) and active-low FAULT output directly indicate the signals’ status.

The EV kit should be powered from two independent isolated power supplies with nominal output voltage in range from 1.71V to 5.5V. For evaluating the electrical parameters of the device without any isolation between the two sides, a single power supply can also be used.

The MAX14483EVKIT# comes populated with the MAX14483AAP+ installed in a 20-pin SSOP package with 5.5mm of creepage and clearance.

Applications

  • Building Automation
  • General SPI-bus Isolation
  • Industrial Automation
  • Process Automation
  • Programmable Logic Controllers
  • Robotics
reference details image

USB2GPIOISO

Evaluation Kit for the MAX14483

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USB2GPIOISO

Evaluation Kit for the MAX14483

Evaluation Kit for the MAX14483

Features and Benefits

  • 24 Isolated Channels with 3.75kVRMS Robust Galvanic Isolation
  • Low Propagation Delay 10ns, Typical
  • Flexible System Design with Wide 1.71V to 5.5V Voltage Range on Each Side
  • Small PCB area
  • Pmod-Compatible Form Factor

Product Detail

The USB2GPIOISO# adapter board is designed to work with Maxim’s USB2GPIO# adapter board to provide galvanic isolation between the ‘master’ USB adapter board and a ‘slave’ EV kit or Pmod™ board. Four MAX14483 6-channel digital isolators are used to provide 3.75kVRMS isolation.

The two power domains are on the ‘master’ side (VDD_M and GNDM), and the ‘slave’ side (VDD_S and GNDS). The two independent power supplies are provided from the master board and the slave board with each VDD_ between 1.71V and 5.5V. The two connectors on the ‘master’ side are male connectors and plug into the female connectors on the USB2GPIO# adapter.

USB2GPIOISO# is also designed to work with legacy USB2PMB1# and USM2PMB2# adapters; connectors XMA and XSA are 12-pin connectors which support either SPI with 4 GPIO pins and are fully compatible with previous adapters and low-pin count EV kit or Pmod boards. These connectors are controlled from the Munich GUI or relevant EV kit GUIs. Note that the isolator ICs have unidirectional channels (in or out). Full bidirectional I2C communication is not supported by this board.

The other connectors, XMB and XSB, are 20-pin connectors supporting extra GPIO connections. These 20-pin connectors are NOT controlled by the Munich GUI but are for use with future EV kits and will be controlled by the relevant EV kit GUIs.

USB2GPIOISO# adapter board can be used to enable isolated USB-to-SPI/GPIO interface for any Pmod-compatible plug-in peripheral modules such as the Maxim MAX14001PMB, and MAXREFDES12-Corona reference design.

Tools & Simulations

Tools & Simulations 1

Reference Designs

Reference Designs 2

fig03

Go-IO Industrial IoT Reference Design

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MAXREFDES212

Go-IO Industrial IoT Reference Design

Go-IO Industrial IoT Reference Design

Features and Benefits

  • Universal IO (UAIO), ±12.5V or ±25mA
  • 8 Digital Inputs, IEC 61131-2 compliant Types 1/3
  • 4 Digital Outputs, up to 1A with Safe Demag
  • IO-Link® Master, four ports, version 1.1 compliant
  • TMG IO-Link Master Stack
  • One RS-485 COM port, full duplex to 25Mbps data rate
  • Robust interfaces with integrated protection for ESD and surge

View Detailed Reference Design external link

Design & Integration Tools

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ZIP

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