ADM3252EABCZ

The ADM3252E is a high speed, 2.5 kV, fully isolated, dualchannel 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 is used for both the isolation of the logic signals and the integrated dc-to-dc converter. The result is a total isolation solution. isoPower technology in the ADM3252E uses high frequency switching elements to transfer power through its transformer. The ADM3252E conforms to the EIA/TIA-232E and ITU-T V.28 specifications and operates at data rates of up to 460 kbps. Four external 0.1 μF charge pump capacitors are used for the voltage doubler/inverter, permitting operation from a single 3.3 V or 5 V supply. The ADM3252E is available in a 44-ball, chip scale package ball grid array (CSP_BGA) and is specified over the -40°C to +85°C temperature range.

Applications

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

Key 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
• 2xTx and 2xRx channels
• Meets EIA/TIA-232E specifications
• ESD protection to IEC 61000-4-2 on Rx 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) V10RM = 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)