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ADM3251 Datasheet PDF

Part Series:ADM3251 Series
Category:Interface ICs
Description:DGTL ISO 2.5kV 2CH RS232 20SOIC
Document:ADM3251EARWZ Datasheet PDF (18 Pages)

ADM3251EARWZ - ADI Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Number of Pins
20 Pin
Supply Voltage (DC)
5.00V (max)
Case/Package
SOIC-20
Rise/Fall Time
2.3 ns
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ADM3251EARWZ - ADI Function Overview

The ADM3251EARWZ is a high speed, 2.5kV fully isolated, single-channel RS-232/V.28 Transceiver, operates from a single 5V power supply. Due to the high ESD protection on the RIN and TOUT pins, the device is ideally suited for operation in electrically harsh environments or where RS-232 cables are frequently being plugged and unplugged. The ADM3251EARWZ incorporates dual-channel digital isolators with isoPower™ integrated, isolated power. There is no requirement to use a separate isolated DC-to-DC converter. Chip-scale transformer iCoupler® technology from Analogue Devices, Inc., is used both for the isolation of the logic signals as well as for the integrated DC-to-DC converter. The result is a total isolation solution. The ADM3251EARWZ contains isoPower technology that uses high frequency switching elements to transfer power through the transformer. Special care must be taken during printed circuit board (PCB) layout to meet emissions standards.
2.5kV Fully Isolated (Power and Data) RS-232 Transceiver
isoPower Integrated, Isolated DC-to-DC Converter
460kbps Data Rate
1 Tx and 1 Rx
Meets EIA/TIA-232E Specifications
ESD Protection on RIN and TOUT Pins
±8kV Contact Discharge
±15kV Air Gap Discharge
0.1µF Charge Pump Capacitors
>25kV/µs High Common-mode Transient Immunity
Safety and Regulatory Approvals
ESD sensitive device, take proper precaution while handling the device, although it features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD.
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