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ADM2481BRWZ-RL7 ADI Chips Half Duplex iCoupler Isolated RS-485 Transceiver 500 kbps

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ADM2481BRWZ-RL7 ADI Chips Half Duplex iCoupler Isolated RS-485 Transceiver 500 kbps

Brand Name:	Product name
Model Number:	ADM2481BRWZ-RL7
MOQ:	500PCS
Packaging Details:	500PCS/reef
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

China

Document:

Model:

ADM2481BRWZ-RL7

Product Name:

Product Name

Type:

SMD/SMT

Data Rate:

500 Kb/s

Supply Voltage:

3 V, 5 V

Operating Temperature:

- 40 C°~ + 85 C°

Supply Ability:

10000

Highlight:

ADM2481BRWZ-RL7 RS-485 Transceiver

ADI Chips iCoupler Isolated Transceiver

500 kbps RS-485 Transceiver

Product Description

ADI chips ADM2481BRWZ-RL7 Half-Duplex, iCoupler Isolated RS-485 Transceiver

Half-Duplex, iCoupler Isolated RS-485 Transceiver

FEATURES

RS-485 transceiver with electrical data isolation

Complies with ANSI TIA/EIA-485-A and ISO 8482: 1987(E)

500 kbps data rate

Slew rate-limited driver outputs

Low power operation: 2.5 mA maximum

Suitable for 5 V or 3.3 V operations (VDD1)

High common-mode transient immunity: >25 kV/μs

True fail-safe receiver inputs

Chatter-free power-up/power-down protection

256 nodes on bus

Thermal shutdown protection

Safety and regulatory approvals

UL recognition: 2500 V rms for 1 minute per

UL 1577

VDE certificates of conformity

DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12

VIORM = 560 V peak

Operating temperature range: −40°C to +85°C

APPLICATIONS

Low power RS-485/RS-422 networks

Isolated interfaces

Building control networks

Multipoint data transmission systems

GENERAL DESCRIPTION

The ADM2481 differential bus transceiver is an integrated,

galvanically isolated component designed for bidirectional data

communication on balanced, multipoint bus transmission lines.

It complies with ANSI EIA/TIA-485-A and ISO 8482: 1987(E).

Using iCoupler® technology from Analog Devices, Inc., the

ADM2481 combines a 3-channel isolator, a three-state diffe

rential line driver, and a differential input receiver into a single

package. The logic side of the device is powered with either a

5 V or 3 V supply, and the bus side uses a 5 V supply only.

The ADM2481 is slew-limited to reduce reflections with improp

erly terminated transmission lines. The controlled slew rate

limits the data rate to 500 kbps. The input impedance of the

device is 96 kΩ, allowing up to 256 transceivers on the bus. Its

driver has an active-high enable feature. The driver differential

outputs and receiver differential inputs are connected internally

to form a differential input/output (I/O) port. When the driver

is disabled or when VDD1 or VDD2 = 0 V, this imposes minimal

loading on the bus. An active-high receiver disable feature,

which causes the receiver output to enter a high impedance

state, is provided as well.

The receiver inputs have a true fail-safe feature that ensures a

logic-high receiver output level when the inputs are open or

shorted. This guarantees that the receiver outputs are in a

known state before communication begins and at the point

when communication ends.

Current limiting and thermal shutdown features protect against

output short circuits and bus contention situations that might

cause excessive power dissipation. The part is fully specified

over the industrial temperature range of −40°C to +85°C and is

available in a 16-lead, wide body SOIC package.

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products details

ADM2481BRWZ-RL7 ADI Chips Half Duplex iCoupler Isolated RS-485 Transceiver 500 kbps

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