ADM2483:  Slew-Rate Limited Isolated RS-485 Transceiver

The ADM2483 differential bus transceiver is an integrated, galvanically isolated component designed for bi-directional data communication on multi-point bus transmission lines. It is designed for ...More

ADM2483:  Slew-Rate Limited Isolated RS-485 Transceiver

Product Description

The ADM2483 differential bus transceiver is an integrated, galvanically isolated component designed for bi-directional data communication on multi-point bus transmission lines. It is designed for balanced transmission lines and complies with ANSI TIA/EIA RS-485-A and ISO 8482:1987(E). The ADM2483 employs Analog Devices’ iCoupler technology to combine a 3-channel isolator, a 3-state differential line driver and a differential input receiver into a single package. The logic side of the device can be powered with either a 5 V or a 3 V supply while the bus-side is powered with a 5 V supply.

Features

  • RS-485 Transceiver with Electrical Data Isolation 2500 VRMS for 1 min (UL 1577 Certification)
  • Complies with ANSI TIA/EIA RS-485-A-1998 and ISO 8482:1987(E)
  • 250 kbps Data Rate
  • Slew Rate Limited Driver Outputs
  • Low Power Operation: 4.5 mA max
  • Suitable for 5 V or 3 V operation (VDD1)
  • High common mode transient immunity: >25 KV/µs
  • Glitch-Free Power-up/down Protection
  • Thermal Shutdown Protection
  • Receiver Open-Circuit Fail-Safe Design
  • Safety and Regulatory Approvals UL Recognition: 2500 VRMS for 1 minute per UL 1577 (pending)
  • CSA Component Acceptance Notice #5A

Diagrams

ADM2483 Diagram
Functional Block Diagram for ADM2483

Specifications

Protocols RS-485
Pwr Supply (Vnom) +3 to +5 & ISO +5
#Tx 1
# Rx 1
Data Rate 500kbps
Low Power Shutdown No
Operating Temp Range -40 to +85

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Part# Protocols Data Rate #Tx # Rx Pos Supply Supply Current (max) 15 kV ESD Low Pwr Shutdown Product Description Price* (1000-4999)
ADM2482E RS-422, RS-485 16Mbps 2 2 +3 to +5.5 6mA Yes No High Speed, 2.5 kV Isolated RS-485 Transceivers with Integrated Transformer Driver $4.66
ADM2484E RS-422, RS-485 500kbps 2 2 +3 to +5.5 2mA Yes No 500 kbps, ESD Protected, Half-/Full-Duplex, iCoupler, Isolated RS-485 Transceiver $3.04
ADM2487E RS-422, RS-485 500kbps 2 2 +3 to +5.5 4mA Yes No 2.5 kV Isolated RS-485 Transceivers with Integrated Transformer Driver $3.64
ADM2491E RS-422, RS-485 16Mbps 2 2 +3 to +5.5 n/a No No High Speed, ESD-Protected, Half-/Full-Duplex, iCoupler Isolated RS-485 Transceiver $4.76
ADM3251E RS-232 460kbps 1 1 +4.5 to +5.5 110mA Yes No Isolated Single Channel, RS-232 Line Driver/Receiver $2.99
ADM4850 RS-422, RS-485 115kbps 1 1 +4.75 to +5.25 160µA No Yes 5V, Slew Rate Limited, Half-Duplex, RS-485/RS-422 Transceivers $0.71
ADM4854 RS-422, RS-485 115kbps 1 1 +4.75 to +5.25 160µA No No 5V, Slew Rate Limited, Full-Duplex, RS-485/RS-422 Transceivers $0.71
ADM560 RS-232 116kbps 4 5 +3 to +3.6 5mA No Yes Ultralow Power, +3.3V, RS-232 Notebook PC Serial Port Drivers/Receivers $2.41
ADM561 RS-232 116kbps 4 5 +3 to +3.6 5mA No Yes Ultralow Power, +3.3V, RS-232 Notebook PC Serial Port Drivers/Receivers $2.41
ADM232L RS-232 120kbps 2 2 +4.5 to +5.5 13mA No No +5V Powered, CMOS RS-232 Drivers/Receivers $1.27
ADM233L RS-232 120kbps 2 2 +4.75 to +5.25 13mA No No +5V Powered CMOS RS-232 Drivers/Receivers $2.79