ADM3077E

PRODUCTION

3.3 V, ⅛ Load, ±15kV ESD Protected, RS-485/RS-422 Transceiver (Full Duplex, 16 Mbps)

Data Sheet (Rev. F) Product Selection Table

Part Models: 4
1ku List Price: Starting From $2.08

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Overview

TIA/EIA RS-485/RS-422 compliant
±15 kV ESD protection on RS-485 input/output pins
Data rates
- ADM3070E/ADM3071E/ADM3072E: 250 kbps
- ADM3073E/ADM3074E/ADM3075E: 500 kbps
- ADM3076E/ADM3077E/ADM3078E: 16 Mbps
Half- and full-duplex options
True fail-safe receiver inputs
Up to 256 nodes on the bus

−40°C to +125°C temperature option
Hot-swap input structure on DE and RE pins
Reduced slew rates for low EMI
Low power shutdown current (all except ADM3071E/ ADM3074E/ADM3077E)
Outputs high-Z when disabled or powered off
Common-mode input range: −7 V to +12 V
Thermal shutdown and short-circuit protection
8-lead and 14-lead narrow SOIC packages

The ADM307xE are 3.3 V, low power data transceivers with ±15 kV ESD protection suitable for full- and half-duplex communication on multipoint bus transmission lines. They are designed for balanced data transmission, and they comply with TIA/EIA standards: RS-485 and RS-422.

The devices have a ⅛ unit load receiver input impedance, which allows up to 256 transceivers on a bus. Because only one driver should be enabled at any time, the output of a disabled or powered-down driver is tristated to avoid overloading the bus.

The receiver inputs have a true fail-safe feature, which eliminates the need for external bias resistors and ensures a logic high output level when the inputs are open or shorted. This guarantees that the receiver outputs are in a known state before communication begins and when communication ceases.

Applications

Power/energy metering
Industrial control
Lighting systems
Telecommunications
Security systems
Instrumentation

Part Models: 4
1ku List Price: Starting From $2.08

Documentation

Data Sheet 1

ADM3070E/ADM3071E/ADM3072E/ADM3073E/ADM3074E/ADM3075E/ADM3076E/ADM3077E/ADM3078E: 3.3 V, ±15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers Data Sheet (Rev.F) 09/29/2009

Application Note 2

AN-960: RS-485/RS-422 Circuit Implementation Guide 07/09/2020

AN-1176: Component Footprints and Symbols in the Binary .Bxl File Format 02/07/2014

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
ADM3077EARZ	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM3077EARZ-REEL7	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM3077EYRZ	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM3077EYRZ-REEL7	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Mar 25, 2021 - 21_0080 Amkor Philippines as an Alternate Site for SOICN
		PCN21_0080_Form Material_Report Qualification Results Summary Other
ADM3077EARZ	PRODUCTION
ADM3077EARZ-REEL7	PRODUCTION
ADM3077EYRZ	PRODUCTION
ADM3077EYRZ-REEL7	PRODUCTION

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

Hardware Ecosystem

Parts	Product Life Cycle	Description
LTC2851	PRODUCTION	3.3V 20Mbps RS485/RS422 Transceiver

Evaluation Kits

Standard RS-485 Full-Duplex (8-lead SOIC) Evaluation Board, EVAL-RS485FD8EBZ

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Product Details

The EVAL-RS485FD8EBZ allows quick and easy evaluation of full-duplex RS-485 transceivers with standard 8-lead SOIC footprints. The evaluation board allows interfacing via screw terminal block to digital I/O for driver input (DI) and receiver output (RO). Bus signals A, B, Y and Z (full-duplex bus) can be connected to a bus screw terminal block. Termination resistors are fitted across A and B, as well as Y and Z. These can be connected in half-duplex configuration (A to Y, B to Z), in order to evaluate the RS-485 driver. Footprints are provided for pull-up and pull-down (biasing resistors) on the receiver inputs in order to provide the option to evaluate an RS-485 receiver with this configuration.

Devices for evaluation on the board must be ordered separately.

Resources

UG-543:Evaluation Boards for Full-Duplex and Half-Duplex RS-485 Transceivers (Rev.A)
4/19/2013

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