• ADM2481BRWZ
  • ADM2481BRWZ
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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 differential 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 improperly terminated transmission lines. The controlled slew rate limits the data rate to 500 kbps. The input impedance of the device is 96 kO, 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 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. Applications Low power RS-485/RS-422 networks Isolated interfaces Building control networks Multipoint data transmission systems

Количество в упаковке1
КорпусSOIC18
Вес0.812 г
supply_voltage_dc3.00 V (min)
case_package_siSOIC
rohs_statusCompliant
reach_svhc_complianceNo SVHC
lead_free_statusContains Lead
mounting_styleSurface Mount
packagingTube
case_packageSOIC
lifecycle_statusActive
pin_count18
Device TypeRS485 Transceiver
IC Interface TypeRS422, RS485
No. of Drivers1Drivers
No. of Receivers1Receivers
Supply Voltage Min3V
Supply Voltage Max5.5V
Driver Case StyleSOIC
No. of Pins16Pins
Operating Temperature Min-40°C
Operating Temperature Max85°C
PackagingEach
Product RangeADM2481 Series
Automotive Qualification Standard-
RoHS Phthalates CompliantYes
MSLMSL 3 - 168 hours
IC Generic NumberADM2481
SVHCNo SVHC (07-Jul-2017)
Operating Temperature Range-40°C to +85°C
Supply Voltage Range3V to 5.5V, 4.75V to 5.25V
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