ADM2463E

RECOMMENDED FOR NEW DESIGNS

500 kbps, 5.7 kV RMS, Signal Isolated Full Duplex RS-485 Transceiver with ±15 kV IEC ESD

Data Sheet (Rev. A) Product Selection Table
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Overview

  • 5.7 kV rms, signal isolated RS-485/RS-422 transceiver
  • Low radiated emissions, passes EN55032 Class B with margin on a 2-layer PCB
  • Cable inversion smart feature
    • Correction for reversed cable connection on A, B, Y, and Z bus pins while maintaining full receiver fail-safe
  • ESD protection on the RS-485 A, B, Y, and Z bus pins
    • ≥±12 kV IEC61000-4-2 contact discharge
    • ≥±15 kV IEC61000-4-2 air discharge
  • Low speed 500 kbps data rate for EMI control
  • Flexible power supply inputs
    • Primary VDD1 supply of 1.7 V to 5.5 V
    • Isolated VDD2 supply of 3.0 V to 5.5 V
  • Profibus® compliant for 5 V VDD2
  • Wide −40°C to +125°C operating temperature range
  • High common-mode transient immunity: >250 kV/μs
  • Short-circuit, open-circuit, and floating input receiver fail-safe
  • Supports 192 bus nodes (72 kΩ receiver input impedance)
  • Full hot swap support (glitch free power-up and power-down)
  • Safety and regulatory approvals
    • UL 1577
      • VISO = 5700 V rms for 1 minute
    • IEC/EN/CSA 62368-1
    • IEC/CSA 60601-1
    • IEC/CSA 61010-1
    • CQC GB 4943.1 (pending)
    • DIN EN IEC 60747-17 (VDE 0884-17) (pending)
      • VIORM = 1060 V peak
  • 16-lead, wide body, SOIC_W package with >8.0 mm creepage and clearance in standard pinout 

The ADM2461E/ADM2463E are 500 kbps, 5.7 kV rms, signal isolated RS-485 transceivers that pass radiated emissions testing to the EN55032 Class B standard with margin on a 2-layer printed circuit board (PCB). The ADM2461E/ADM2463E isolation barrier provides robust immunity to noise and system level EMC events. The devices are protected against ≥±12 kV contact and ≥ ±15 kV air IEC61000-4-2 electrostatic discharge (ESD) events on the RS-485 A, B, Y, and Z pins. The devices feature cable invert pins to allow quick correction of the reversed cable connection on the A, B, Y, and Z bus pins while maintaining full receiver fail-safe performance. 

These devices are optimized for low speed over long cable runs and have a maximum data rate of 500 kbps. The high differential output voltage makes these devices suitable for Profibus nodes when powered with 5 V on the VDD2 supply. The VDD1 primary supply and VDD2 isolated supply both support a wide range of voltages (1.7 V to 5.5 V and 3 V to 5.5 V, respectively). Half-duplex and full duplex device options are available in the industry standard 16-lead, wide-body, standard SOIC_W package with >8.0 mm creepage and clearance. 

Applications

  • Heating, ventilation, and air conditioning (HVAC) networks
  • Industrial field buses
  • Building automation
  • Utility networks
ADM2463E
500 kbps, 5.7 kV RMS, Signal Isolated Full Duplex RS-485 Transceiver with ±15 kV IEC ESD
ADM2463E-fbl ADM2463E-pc
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Documentation

Data Sheet 1

Safety and Regulatory Compliance 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Analog to Digital Converters (ADCs) 3
AD4000
PRODUCTION 16-Bit, 2 MSPS/1 MSPS/500 kSPS, Precision, Pseudo Differential, SAR ADCs
AD4004
RECOMMENDED FOR NEW DESIGNS 16-Bit, 2 MSPS/1 MSPS/500 kSPS, Precision, Pseudo Differential, SAR ADCs
AD4008
RECOMMENDED FOR NEW DESIGNS 16-Bit, 2 MSPS/1 MSPS/500 kSPS, Precision, Pseudo Differential, SAR ADCs
LDO Linear Regulators 1
ADP7118
RECOMMENDED FOR NEW DESIGNS 20 V, 200 mA, Low Noise, CMOS LDO Linear Regulator
Microcontrollers 3
ADuCM3027
RECOMMENDED FOR NEW DESIGNS

Ultra Low Power ARM Cortex-M3 MCU with Integrated Power Management and 128 KB of Embedded Flash Memory
ADuCM3029
RECOMMENDED FOR NEW DESIGNS

Ultralow-Power ARM Cortex-M3 MCU with Integrated Power Management and 256 KB of Embedded Flash Memory
ADuCM4050
RECOMMENDED FOR NEW DESIGNS Ultra Low Power ARM Cortex-M4F MCU with Integrated Power Management
Switching Regulators & Controllers 3
ADuM6020
RECOMMENDED FOR NEW DESIGNS Low Emission, 5 kV Isolated DC-to-DC Converters
ADuM6028
RECOMMENDED FOR NEW DESIGNS Low Emission, 5 kV Isolated DC-to-DC Converters
ADP2384
PRODUCTION 20 V, 4 A, Synchronous Step-Down DC-to-DC Regulator
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Tools & Simulations

IBIS Model 1

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
EVAL-ADM2463EEBZ

ADM2463E Evaluation Board

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Features and Benefits

  • Simplified evaluation of the ADM2463E and ADM2763E signal isolated, 500 kbps, full duplex RS-485 transceiver
  • 2-layer PCB compliant to EN 55032 Class B radiated emissions
  • Footprint for standard full duplex, 16-lead, SOIC_W package with >8 mm creepage and clearance
  • On-board ADP7104 LDO regulators with jumper options for simplified evaluation in multiple supply configurations
  • Flexible, low voltage VDD1 supply rail for interfacing with I/O nodes as low as 1.7 V
  • Wide bus voltage VDD2 supply rail from 3 V to 5.5 V
  • IEC 61000-4-2 ESD protection on the A pin, B pin, Y pin, and Z pin
    • ≥±12 kV contact discharge and ≥±15 kV air discharge
  • SMA connector for TxD input signal
  • Optional on-board LTC1799 oscillator for providing TxD signal
  • Screw terminal blocks for connecting power, digital, and RS-485 signals
  • Jumper-selectable enable and disable for digital input signals
  • Resistors and footprints for termination and loopback test
  • Test points for measuring all signals 

Product Details

The EVAL-ADM2463EEBZ/EVAL-ADM2763EEBZ allow simplified, efficient evaluation of the ADM2463E and ADM2763E 5.7 kV rms, 500 kbps signal isolated RS-485 transceivers. The functionality of the EVAL-ADM2463EEBZ and the EVAL-ADM2763EEBZ are the same. Figure 1 shows the EVAL-ADM2463EEBZ and represents both evaluation boards.

The EVAL-ADM2463EEBZ/EVAL-ADM2763EEBZ come with options for the evaluation of the ADM2463E and ADM2763E devices in an individual system. Digital and RS-485 bus signals are easily accessible via the screw terminal blocks on the evaluation boards. Each digital input can be configured via the on-board jumper options. 

Two on-board ADP7104 low dropout (LDO) regulators accept an input voltage of up to 20 V and output a range of selectable supply voltages to the VDD1 pin and VDD2 pin, configurable via jumper options. The LDO regulators can be bypassed to power the ADM2463E and ADM2763E VDD1 supply pins and VDD2 supply pins directly from an external power supply.

The flexible VDD1 pin primary side logic supply allows the device to operate with a digital input/output (I/O) voltage from 1.7 V to 5.5 V, which enables communication with modern nodes using either a 1.8 V or 2.5 V power supply. The VDD1 pin can also be supplied from the ADP7104 regulated supply. 

Alternative methods can be used to provide the transmit data input (TxD) signal to the device. An optional LTC1799 oscillator is included on the evaluation boards and can be configured to provide a clock signal as the TxD digital input within a 10 kHz to 250 kHz range. A terminal block allows an easy wired connection to a microcontroller or processor. For optimal signal integrity, use the on-board Subminiature Version A (SMA) connector to connect an external data signal.

The evaluation boards have footprints for the ADM2463E and ADM2763E full duplex, signal isolated, RS-485 transceivers in a 10.10 mm × 10 mm, 16-lead, standard small outline, wide body (SOIC_W) package.

For full details on the ADM2463E and ADM2763E, see the ADM2463E and ADM2763E data sheets, which must be used in conjunction with this user guide when using the EVAL-ADM2463EEBZ/EVAL-ADM2763EEBZ. 
EVAL-ADM2463EEBZ
ADM2463E Evaluation Board
ADM2463E Evaluation Board ADM2463E Evaluation Board ADM2463E Evaluation Board

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