GENERAL DESCRIPTION

The ADM2761E/ADM2763E are 500 kbps, 5.7 kV rms, signal isolated RS-485 transceivers that pass radiated emissions testing to the EN 55032, Class B standard with margin on a 2-layer printed circuit board (PCB). These devices are compliant to the RS-485 and RS-422 communication standards. The ADM2761E/ ADM2763E isolation barrier provides robust system level immunity to IEC 61000-4-x system level electromagnetic compatibility (EMC) standards. The devices are suitable for applications that require insulation against working voltages of 1060 V rms and 1500 V dc for the lifetime of the device.

The devices are protected against ≥±12 kV contact and ≥±15 kV air IEC 61000-4-2 electrostatic discharge (ESD) events on the RS-485 A, B, Y, and Z pins. The ADM2763E features a receiver cable invert pin to allow quick correction of the reversed cable connection on the A and B receiver 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 3.0 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 8.3 mm creepage and clearance.

FEATURES

5.7 kV rms, signal isolated RS-485 transceiver

1500 V peak and dc working voltage to DIN V VDE 0884-11

Low radiated emissions: passes EN 55032, Class B with margin on a 2-layer PCB

Receiver cable inversion smart feature (ADM2763E)

Correction for reversed cable connection on A and B bus pins while maintaining full receiver fail-safe feature

ESD protection on the RS-485 A, B, Y, and Z bus pins

≥±12 kV IEC 61000-4-2 contact discharge

≥±15 kV IEC 61000-4-2 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 (pending)

CSA Component Acceptance Notice 5A, DIN V VDE 0884-11, UL 1577, CQC11-471543-2012, IEC 61010-1

16-lead, wide-body, SOIC_W package with 8.3 mm creepage and clearance in standard pinout

APPLICATIONS

Solar inverters

Electrical test and measurement

Heating, ventilation, and air conditioning (HVAC) networks

Industrial field buses

Building automation

ADM2761E屬于集成電路（IC） > 驅(qū)動(dòng)器，接收器，收發(fā)器。亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的ADM2761E驅(qū)動(dòng)器，接收器，收發(fā)器該系列產(chǎn)品的主要功能是提供必需的硬件資源，以通過(guò)延長(zhǎng)電纜或印制線(xiàn)進(jìn)行通信。確切的功能會(huì)因所采用的通信協(xié)議而異，可能包括諸如瞬態(tài)抑制之類(lèi)的功能，這些功能對(duì)于通信用途可能并非絕對(duì)必要，但對(duì)于可能的使用環(huán)境卻是明智之選。