Analog Devices Inc. ADM3251E RS-232 Line Driver/Receivers
Analog Devices Inc. ADM3251E RS-232 Line Driver/Receivers are high speed, 2.5kV fully isolated, single- channel RS-232/V.28 transceiver devices. The ADM3251E operates from a single 5V power supply and incorporates dual-channel digital isolators with isoPower™ integrated, isolated power. The device is ideally suited for operation in electrically harsh environments or where RS-232 cables are frequently being plugged and unplugged due to the high ESD protection on the RIN and TOUT pins.
The ADM3251E utilizes isoPower technology that uses high-frequency switching elements to transfer power through the transformer. The ADM3251E conforms to the EIA/TIA-232E and ITU-T V. 28 specifications. The device operates at data rates up to 460kbps, with four external 0.1μF charge pump capacitors used for the voltage doubler/inverter, permitting operation from a single 5V supply. The ADM3251E is available in a 20-lead, wide-body SOIC package and is specified over the −40°C to +85°C temperature range.
Features
- 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
- High common-mode transient immunity: >25kV/μs
- Safety and regulatory approvals
- UL recognition
- 2500 Vrms for 1 minute per UL 1577
- VDE Certificate of Conformity
- DIN EN 60747-5-2 (VDE 0884 Teil 2): 2003-01
- CSA Component Acceptance Notice #5A
- Operating temperature range: −40°C to +85°C
- Wide body, 20-lead SOIC package
Applications
- High noise data communications
- Industrial communications
- General-purpose RS232 data links
- Industrial/telecommunications diagnostic ports
- Medical equipment
Videos
Block Diagram
Additional Resources
Published: 2019-05-08
| Updated: 2022-03-10