Isolated RS-232

Isolated RS-232 is a serial communication standard defined by TIA/EIA-232-F that conveys data over a simple unterminated, multiconductor cable. Although the original specification was intended for modems, subsequent RS-232 transceivers support general-purpose serial interfaces at data rates up to 1 Mbps. Analog Devices offers a wide range of isolated iCoupler® and μ‎Module® RS-232 transceivers that remove ground loops by isolating the logic-level interface and line transceiver, protect against voltage spikes and common-mode transient events so data remains intact, and provide options for integrated dc-to-dc power converters. iCoupler digital isolation technology solutions minimize PCB real estate and enable the power isolation and signal isolation required for system reliability in a noisy environment. μ‎Module RS-232 transceivers offer isolated RS-232 solutions with no external components and up to 1 W of additional power.
Product Selection Table

Isolated RS-232

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SortOrderPart## of ChannelsData Rate
(max)
(bps)
Insulation Rating
(V rms)
CMTI
(min)
(V/us)
Vs+
(min)
(V)
Vs+
(max)
(V)
Price (1000+)
($ US)
1ADM3252EReference Circuit Available 2 460k 2.5k 25k 3 5.5 $8.49 (ADM3252EABCZ)
2LTM2882-5 2 1M 2.5k 30k 4.5 5.5 $8.45 (LTM2882CV-5#PBF)
3LTM2882-3 2 1M 2.5k 30k 3 3.6 $8.45 (LTM2882CV-3#PBF)
4ADM3251E 1 460k 2.5k 25k 4.5 5.5 $2.99 (ADM3251EARWZ)