ADM3485E
Info: : PRODUCTION
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ADM3485E

3.3 V, ±15 kV ESD-Protected, RS-485/RS-422 Transceiver (Half Duplex, 12Mbps, DE/RE)

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 3
1ku List Price Starting From $1.28
Features
  • TIA/EIA RS-485/RS-422 compliant
  • ±15 kV ESD protection on RS-485 input/output pins
  • 12 Mbps data rate
  • Half-duplex transceiver
  • Up to 32 nodes on the bus
  • Receiver open-circuit, fail-safe design
  • Low power shutdown current
  • Outputs high-Z when disabled or powered off
  • Common-mode input range: −7 V to +12 V
  • Thermal shutdown and short-circuit protection
  • Industry-standard 75176 pinout
  • 8-lead narrow SOIC package
Additional Details
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The ADM3485E is a 3.3 V, low power data transceiver with ±15 kV ESD protection, suitable for half-duplex communication on multipoint bus transmission lines. The ADM3485E is designed for balanced data transmission and complies with TIA/EIA standards RS485 and RS-422. The ADM3485E is a half-duplex transceiver that shares differential lines and has separate enable inputs for the driver and the receiver.

The devices have a 12 kΩ receiver input impedance, which allows up to 32 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 has a fail-safe feature that ensures a logic high output when the inputs are floating. Excessive power dissipation caused by bus contention or by output shorting is prevented with a thermal shutdown circuit.

The part is fully specified over the industrial temperature range and is available in an 8-lead narrow SOIC package.

APPLICATIONS

  • Power/energy metering
  • Telecommunications
  • EMI-sensitive systems Industrial control
  • Local area networks
Part Models 3
1ku List Price Starting From $1.28

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADM3485EARZ
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ADM3485EARZ-REEL
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ADM3485EARZ-REEL7
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Product Lifecycle

PCN

Sep 17, 2015

- 14_0129

RS-232 and RS-485/RS-422 Transceiver products alternate Fabrication foundry at ADI, Limerick, Ireland

ADM3485EARZ

PRODUCTION

ADM3485EARZ-REEL

PRODUCTION

ADM3485EARZ-REEL7

PRODUCTION

Dec 17, 2010

- 10_0256

Die Revision of ADM3485E

ADM3485EARZ

PRODUCTION

ADM3485EARZ-REEL

PRODUCTION

ADM3485EARZ-REEL7

PRODUCTION

Feb 3, 2010

- 09_0256

Jiangsu Changjiang Electronics Technology Co. Ltd. (JCET), China as additional assembly and test sub-contractor for Narrow Body SOIC.

ADM3485EARZ

PRODUCTION

ADM3485EARZ-REEL

PRODUCTION

ADM3485EARZ-REEL7

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Sep 17, 2015

- 14_0129

arrow down

RS-232 and RS-485/RS-422 Transceiver products alternate Fabrication foundry at ADI, Limerick, Ireland

ADM3485EARZ

PRODUCTION

ADM3485EARZ-REEL

PRODUCTION

ADM3485EARZ-REEL7

PRODUCTION

Dec 17, 2010

- 10_0256

arrow down

Die Revision of ADM3485E

ADM3485EARZ

PRODUCTION

ADM3485EARZ-REEL

PRODUCTION

ADM3485EARZ-REEL7

PRODUCTION

Feb 3, 2010

- 09_0256

arrow down

Jiangsu Changjiang Electronics Technology Co. Ltd. (JCET), China as additional assembly and test sub-contractor for Narrow Body SOIC.

ADM3485EARZ

PRODUCTION

ADM3485EARZ-REEL

PRODUCTION

ADM3485EARZ-REEL7

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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EVAL-RS485HDEBZ

Standard RS-485 Half-Duplex Evaluation Board, EVAL-RS485HDEBZ

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EVAL-RS485HDEBZ

Standard RS-485 Half-Duplex Evaluation Board, EVAL-RS485HDEBZ

Standard RS-485 Half-Duplex Evaluation Board, EVAL-RS485HDEBZ

Product Detail

The EVAL-RS485HDEBZ allows quick and easy evaluation of half-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), receiver output (RO), driver enable (DE) and receiver output (RO). Bus signals A and B (half-duplex bus) can be connected to a bus screw terminal block. One or two termination resistors can be connected to A and B via jumper settings, in order to evaluation the half-duplex RS-485 driver and receiver. Footprints are provided for pull-up and pull-down (biasing resistors) on the bus.

Devices for evaluation on the board must be ordered separately.

Reference Designs

Reference Designs 1

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