ADM2461E

RECOMMENDED FOR NEW DESIGNS

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

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $2.38

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Part Details

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 V_DD1 supply of 1.7 V to 5.5 V
- Isolated V_DD2 supply of 3.0 V to 5.5 V

Profibus^® compliant for 5 V V_DD2
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 (pending)
CSA Component Acceptance Notice 5A, DIN V VDE V 0884-11,
UL 1577, CQC11-471543-2012, IEC 61010-1
16-lead, wide body, SOIC_W package with >8.0 mm creepage and clearance in standard pinout

Part Models: 2
1ku List Price: Starting From $2.38

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADM2461EBRWZ	16-Lead SOIC Wide	Material Declaration Reliablity Data	Ultra Librarian SamacSys
ADM2461EBRWZ-RL7	16-Lead SOIC Wide	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
Internal Power Switch Buck Regulators 1
ADP2384	RECOMMENDED FOR NEW DESIGNS	20 V, 4 A, Synchronous Step-Down DC-to-DC Regulator
isoPower 2
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
Positive Linear Regulators (LDO) 1
ADP7118	RECOMMENDED FOR NEW DESIGNS	20 V, 200 mA, Low Noise, CMOS LDO Linear Regulator

Precision Microcontrollers 2
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	Ultra Low Power ARM Cortex-M3 MCU with Integrated Power Management and 256 KB of Embedded Flash Memory
Single Channel A/D Converters 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
Ultra Low Power Microcontrollers 1
ADuCM4050	RECOMMENDED FOR NEW DESIGNS	Ultra Low Power ARM Cortex-M4F MCU with Integrated Power Management

Tools & Simulations

IBIS Model 1

ADM2461E- Ibis Model

Evaluation Kits

ADM2461E Evaluation Board

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Features and Benefits

Simplified evaluation of the ADM2461E signal isolated 500 kbps half-duplex RS-485 transceiver
2-layer PCB compliant with EN 55032 Class B radiated emissions
Footprint for standard half-duplex, 16-lead, SOIC_W package with 8.0 mm creepage and clearance
2 on-board ADP7104 LDO regulators with jumper options for simplified evaluation in multiple supply configurations
Jumper options to utilize flexible, VDD1 low voltage supply rail for interfacing with I/O nodes as low as 1.7 V
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

Product Details

The EVAL-ADM2461EEBZ allows for the simplified, efficient evaluation of the ADM2461E 500 kbps, 5.7 kV rms, signal isolated, half-duplex, RS-485 transceiver.

The EVAL-ADM2461EEBZ comes with options for the evaluation of the ADM2461E in an individual system. Digital and RS-485 bus signals are easily accessible via the screw terminal blocks on the EVAL-ADM2461EEBZ. Each digital input can be configured via the on-board jumper options.

Two on-board ADP7104 low dropout (LDO) regulators accept an input voltage up to 20 V and output a range of selectable supply voltages to the VDD1 pin and VDD2 pin, which are configurable via jumper options. The LDO regulators can be bypassed to power the ADM2461E VDD1 supply pin and VDD2 supply pin 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 of 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 ADM2461E. An optional LTC1799 oscillator is included on the EVAL-ADM2461EEBZ 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 EVAL-ADM2461EEBZ has a footprint for the ADM2461E isolated, half-duplex RS-485 transceiver in a 10.10 mm × 10.65 mm, 16-lead, standard small outline, wide body (SOIC_W) package.

For full details on the ADM2461E, see the ADM2461E data sheet, which must be consulted in conjunction with this user guide when using the EVAL-ADM2461EEBZ.

Resources

UG-1725: Evaluating the ADM2461E 500 kbps, 5.7 kV RMS, Signal Isolated, Half-Duplex RS-485 Transceiver with ±15 kV IEC ESD (Rev.0)
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