GENERAL DESCRIPTION
The ADM3252E is a high speed, 2.5 kV, fully isolated, dual channel RS-232/V.28 transceiver device that is operational from a single 3.3 V or 5 V power supply. Because of high ESD protection on the RIN1, RIN2, TOUT1, and TOUT2 pins, the ADM3252E is ideally suited for operation in electrically harsh environments or where RS-232 cables are frequently plugged and unplugged.
The ADM3252E provides four independent isolation channels using the integrated and isolated power of isoPower™. There is no requirement to use a separate isolated dc-to-dc converter. Chip scale transformer iCoupler® technology from Analog Devices, Inc., is used for both the isolation of the logic signals and the integrated dc-to-dc converter. The result is a total isolation solution.

FEATURES
  2.5 kV fully isolated (power and data) RS-232 transceiver
  isoPower integrated, isolated dc-to-dc converter
  Operational from single 3.3 V or 5 V supply
  460 kbps data rate
  2 × Tx and 2 × Rx channels
  Meets EIA/TIA-232E specifications
  ESD protection to IEC 1000-4-2 (801.2) on RINx and TOUTx pins
     Contact discharge: ±8 kV
     Air gap discharge: ±15 kV
  0.1 μF charge pump capacitors
  High common-mode transient immunity: >25 kV/μs
  Safety and regulatory approvals (pending)
     UL recognition
        2500 V rms for 1 minute per UL 1577
     VDE certificate of conformity
        IEC 60747-5-2 (VDE 0884, Part 2)
        VIORM = 560 V peak
  CSA Component Acceptance Notice #5A
  Operating temperature range: −40°C to +85°C
  44-ball chip scale package ball grid array (CSP_BGA)

APPLICATIONS
  Isolated RS-232 interface
  High noise data communications
  Industrial communications
  Industrial/telecommunications diagnostic ports
  Medical equipment