ADUM1441

RECOMMENDED FOR NEW DESIGNS

Micropower Quad-Channel Digital Isolator, Default High (3/1 Channel Directionality)

Part Models
4
1ku List Price
Starting From $2.55
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Part Details

  • Ultralow power operation
    • 3.3 V operation (typical)
      • 5.6 μA per channel quiescent current, refresh enabled
      • 0.3 μA per channel quiescent current, refresh disabled
      • 148 μA/Mbps per channel typical dynamic current
    • 2.5 V operation (typical)
      • 3.1 μA per channel quiescent current, refresh enabled
      • 0.1 μA per channel quiescent current, refresh disabled
      • 117 μA/Mbps per channel typical dynamic current
  • Small, 16-lead QSOP and 20-Lead SSOP
  • Bidirectional communication
  • Up to 2 Mbps data rate (NRZ)
  • High temperature operation: 125°C
  • High common-mode transient immunity: >25 kV/μs
  • Regulatory Information
    • UL 1577 component recognition program
      • 2500 V rms for 1 minute per UL 1577 QSOP package
      • 3750V rms for 1 minute per UL 1577 SSOP package
    • CSA Component Acceptance Notice 5A
    • VDE certificate of conformity
      • DIN VDE V 0884-11:2017-01
      • VIORM = 565 VPEAK QSOP package
      • VIORM = 645 VPEAK SSOP package
    • IECEx and ATEX intrinsic safety
      • Sira 0518 II 1G Ex ia IIC Ga
  • Dual-channel products available
ADUM1441
Micropower Quad-Channel Digital Isolator, Default High (3/1 Channel Directionality)
ADuM1440-1441-1442-1445-1446-1447 Functional Block Diagram ADuM1441-1446 Pin Configuration
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Tools & Simulations

LTspice

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Evaluation Kits

eval board
EVAL-ADUM144X

ADUM144x Evaluation Board

Product Details

The EVAL-ADuM144x-EBZ supports the ADuM144x family of ultra low power, quad channel isolators. It provides a JEDEC standard QSOP16 pad layout, support for signal distribution, loop back, bypass capacitors and loads referenced to VDDX or GNDX. Signal sources can be wired onto the board as well as brought in through Edge mounted SMA connectors (not provided) or terminal blocks for power connections. The board includes 200 mil header positions for compatibility with Tektronix active probes.

The board follows best PCB design practices for four layer boards, including a full power and ground plane on each side of the isolation barrier. No other EMI or noise mitigation practices are included in this board.

EVAL-ADUM144X
ADUM144x Evaluation Board
EVAL-ADuM1441EBZ Image

Reference Designs

PLC/DCS Channel-to-Channel Isolated Temperature Input
CN0376 Circuits from the lab

Channel-to-Channel Isolated Temperature Input (Thermocouple/RTD) for PLC/DCS Applications

Features and Benefits

  • Highly Integrated Two-Channel Isolated PLC/DCS Input
  • Thermocouple/RTD Inputs
  • Signal and Power Isolation
  • Low Power, Small Size
4 mA to 20 mA, Loop Powered Field Instrument with HART Interface
CN0382 Circuits from the lab

Isolated 4 mA to 20 mA/HART Temperature and Pressure Industrial Transmitter Using a Low Power, Precision, 24-Bit, Sigma-Delta ADC

Features and Benefits

  • Isolated 4-20mA Field Instrument
  • HART Transmitter
  • Loop Powered
  • Temperature and Pressure Inputs
CN0376
Channel-to-Channel Isolated Temperature Input (Thermocouple/RTD) for PLC/DCS Applications
PLC/DCS Channel-to-Channel Isolated Temperature Input
Photo of EVAL-CN0376-SDPZ Circuit Evaluation Board
CN0382
Isolated 4 mA to 20 mA/HART Temperature and Pressure Industrial Transmitter Using a Low Power, Precision, 24-Bit, Sigma-Delta ADC
4 mA to 20 mA, Loop Powered Field Instrument with HART Interface
DEMO-AD7124-DZ Printed Circuit Board

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