ADUM5201:  Dual-Channel Isolators with Integrated DC-to-DC Converter

The ADuM520x1 are dual channel digital isolators with isoPower, an integrated, isolated dc-to-dc converter. Based on the Analog Devices, Inc., iCoupler® technology, the ...More

ADUM5201:  Dual-Channel Isolators with Integrated DC-to-DC Converter

Product Description

The ADuM520x1 are dual channel digital isolators with isoPower, an integrated, isolated dc-to-dc converter. Based on the Analog Devices, Inc., iCoupler® technology, the dc-to-dc converter provides up to 500 mW of regulated, isolated power with 5.0 V input and 5.0 V output voltage, or 200 mW of power with 3.3 V input and 3.3 V output voltage. This eliminates the need for a separate isolated dc-to-dc converter in low power isolated designs. The Analog Devices chip scale transformer iCoupler technology is used for the isolation of the logic signals as well as for the dc-to-dc converter. The result is a small form factor, total isolation solution.

ADuM520x units may be used in combination with ADuM5401,ADuM5402, ADuM5403, ADuM5404 and ADuM5000 with isoPower® to achieve higher output power levels and greater channel counts (see the Increasing Available Power section).

The ADuM520x isolators provide two independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide for options).

isoPower uses high frequency switching elements to transfer power through its transformer. Special care must be taken during printed circuit board (PCB) layout to meet emissions standards. Refer to the AN-0971 application note for details on board layout recommendations.

1Protected by U.S. Patents 5,952,849, 6,873,065. and 7075 329 B2. Other patents pending.

Applications

  • RS-232/RS-422/RS-485 transceiver
  • Industrial field bus isolation
  • Power supply startups and gate drives
  • Isolated sensor interfaces
  • Industrial PLCs

Features

  • isoPower® integrated isolated DC/DC converter
  • Regulated 3V or 5V output
  • Up to 500 mW output power
  • Dual dc-to-25 Mbps (NRZ) signal isolation channels
  • Schmitt Trigger Inputs
  • 16-lead SOIC package with >8 mm creepage
  • High temperature operation: 105°C maximum
  • High common-mode transient immunity: > 25 kV/µs
  • Safety and regulatory approvals
    UL recognition
    2500 V rms for 1 minute per UL 1577
    CSA component accept notice #5A (pending)
    VDE cert of conformity (pending)
    DIN V VDE V 0884-10 (VDE V 0884-10):
    2006-12
    VIORM = 560 V peak

Diagrams

ADUM5201 Diagram
Functional Block Diagram for ADUM5201

Explore Other Products

ADUM5000 - Isolated DC/DC Converter

ADUM5400 - Quad-Channel Isolator with Integrated DC-to-DC Converter

ADUM5200 - Dual-Channel Isolators with Integrated DC-to-DC Converter

ADUM5202 - Dual-Channel Isolators with Integrated DC-to-DC Converter

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Part# Features # Ch Max Data Rate(Mbps) Resolution (Bits) Insulation Rating (kVrms) Isolation Voltage (Vrms) Max Operating Temp (°C) Pulse Width Distort (ns) Max Prop Delay (ns) Pos Supply Min Output Voltage (V) Max Output Voltage (V) Output Default State Serial Clock Package Output Power (mW) iCouplerType Price* (1000-4999)
AD7400 Isolated Sigma-Delta Modulator - 10 16 - - - - - +4.5V to +5.5V - - - - 16-Lead SOIC - - $4.05
AD7401 Isolated Sigma-Delta Modulator - 10 16 - - - - - +4.5V to +5.5V - - - - 16-Lead SOIC - - $4.05
ADM2483 RS-485 Transceiver/Half Duplex 1 0.5 - 2.5 - 85 - - +2.7V to +5.5V 1.5 5 Z - 16-Lead SOIC - - $3.04
ADM2485 RS-485 Transeiver 1 16 - 2.5 - 85 - - +2.7V to +5.5V 2.1 5 Z - 16-Lead SOIC - - $5.57
ADM2486 RS-485 Transceiver/Half Duplex w/ Transformer Driver 1 20 - 2.5 - 85 - - +2.7V to +5.5V - - Z - 16-Lead SOIC - - $5.04
ADM2490E RS-485 Transceiver/Full Duplex 1 16 - 5 - 105 - - +2.7V to +5.5V - - High - 16-Lead SOIC - - $4.55
ADUM1100 Standard Digital Isolator 1 100 - 2.5 2.5 125 2 18 +3V to +5.5V 3 5.5 High - 8-Lead SOIC - Standard $1.63
ADUM1200 Standard Digital Isolator 2 25 -