Analog Devices Inc. ADIN1100 10BASE-T1L Ethernet PHY

Analog Devices Inc. ADIN1100 10BASE-T1L Ethernet PHY is a robust, industrial, low-power 10BASE-T1L Ethernet PHY designed for industrial applications compliant with the IEEE 802.3cg Ethernet standard for long-reach 10Mb/s single pair ethernet. The ADI ADIN1100 10BASE-T1L Ethernet PHY integrates an Ethernet PHY core with all the associated analog circuitry, input and output clock buffering. Additionally, the management interface control register and subsystem registers and the MAC interface and control logic to manage the reset and clock control and pin configuration are also integrated.

The PHY core supports the 1.0V pk-pk operating mode and the 2.4V pk-pk operating mode defined in the standard. It can operate from a single power supply rail of 1.8V or 3.3V, with the lower voltage option supporting the 1.0V pk-pk transmit voltage level. The 1.0V pk-pk operating mode, external termination resistors, and independent Rx/Tx pins make the ADIN1100 ideal for intrinsic safety applications. The ADIN1100 has an integrated voltage supply monitoring circuit and power-on reset circuitry to improve system-level robustness.

The MDIO interface is a two-wire serial interface for communication between a host processor or MAC and the ADIN1100, thereby allowing access to control and status information in the PHY core management registers. The interface is compatible with both the IEEE 802.3 Standard Clause 22 and Clause 45 management frame structures. The ADIN1100 is available in a 6 mm × 6 mm 40-ld package.


  • 10BASE-T1L IEEE® Std 802.3cg-2019™ compliant
  • Supports 1.0V pk-pk and 2.4V pk-pk transmit levels
  • Auto-Negotiation capability
  • Supports intrinsic safety applications
  • MII, RMII & RGMII MAC interfaces
  • MDIO Management Interface
  • Unmanaged configuration using pin strapping including:
    • Master/Slave selection
    • Transmit amplitude
    • PHY address
  • 25MHz crystal oscillator/25MHz external clock input (50MHz external clock for RMII)
  • Single supply 1.8V/3.3V operation (mode dependent)
  • EMC test standards
    • IEC 61000-4-4 electrical fast transient (EFT) (±4kV)
    • IEC 61000-4-2 ESD (±8kV contact discharge)
    • IEC 61000-4-2 ESD (±15kV air discharge)
    • IEC 61000-4-6 conducted immunity (10V)
    • EN55032 radiated emissions (Class A)
  • Cable Reach
    • 1700 meters+ with 1.0V pk-pk
    • 1700 meters+ with 2.4V pk-pk
  • Low power consumption
    • Single supply 1V pk-pk – 45mW typ
    • Dual supply 1V pk-pk – 39mW typ
    • Single supply 2.4V pk-pk – 109mW typ
    • Dual supply 2.4V pk-pk – 81mW typ
    • Triple supply 2.4V pk-pk – 75mW typ
  • 3.3V/2.5V/1.8V MAC interface VDDIO supply
  • Integrated power supply monitoring and POR
  • Start of packet detection for IEEE 1588 time stamp support
  • Diagnostics
    • Frame generator and checker
    • Multiple loopback modes
    • IEEE Test mode support
    • Cable diagnostics
  • Link/activity LED
  • 6mm x 6mm LFCSP-40 package
  • Industrial temperature range -40°C to 105°C


  • Process control
  • Factory automation
  • Building automation


Block Diagram

Analog Devices Inc. ADIN1100 10BASE-T1L Ethernet PHY
Published: 2021-03-29 | Updated: 2023-09-12