ADM3251E: Isolated Single Channel RS-232 Line Driver/Receiver
The ADM3251E is a high speed, single-channel RS-232 transceiver device that operates from a single power supply. This device is ideally suited to operation in electrically harsh environments or ...続きを見る
ADM3251E: Isolated Single Channel RS-232 Line Driver/Receiver
製品概要
The ADM3251E is a high speed, single-channel RS-232 transceiver device that operates from a single power supply. This device is ideally suited to operation in electrically harsh environments or where RS-232 cables are frequently being plugged/unplugged.
The ADM3251E incorporates dual-channel digital isolators with isoPower integrated, isolated power. There is no requirement for a separate isolated dc-to-dc converter as the ADM3251E has a chip-scale dc-to-dc converter which is based on Analog Devices, Inc. iCoupler® technology.
Analog Devices’ chip-scale transformer iCoupler technology is used both for the isolation of the logic signals as well as for the dc-to-dc converter. The result is a small form factor, total isolation solution.
Five external 0.1μF charge pump capacitors are used for the voltage doubler/inverter permitting operation from a single supply.
The ADM3251E conforms to the EIA-232E specifications and operates at data rates up to 460 kbps.
The device is ideally suited to operation in electrically harsh environments. RS-232 pins, RIN and TOUT are protected against electrostatic discharges (up to ±15 kV ESD protection).
The ADM3251E is available in a 20 lead Wide Body SOIC package.
Applications
- 英語データシート Rev 0, 07/2008 (pdf 266kB)
- (データシート利用上の注意)
Features
- 460 kbps Data Rate
- 1 Tx and 1 Rx
- Meets EIA-232E specifications
- 0.1uF charge pump capacitors
- Integrated isolated dc-to-dc converter
- ESD protection to IEC1000-4-2(801.2)
on RIN and TOUT pins. - ±8kV: contact discharge
- ±15kV: air gap discharge
- Integrated isolated dc-to-dc converter
- High common-mode transient immunity: >25kV/us
- Safety and regulatory approvals (pending)
UL recognition
VDE certificate of conformity - 20 Lead WSOIC package
| Part# | Min Pos Supply | Data Rate | #Tx | # Rx | ESD-Protection | Low Pwr Shutdown | # Rx Active in Shutdown | # Capacitors | Capacitor Size | Available Packages | Icc Unloaded (max) | Price* (1000-4999) | Product Description |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADM3251E | +4.5 | 460kbps | 1 | 1 | 15 kV | No | n/a | 5 | 0.1µF | SOIC | 110mA | $2.99 | Isolated Single Channel, RS-232 Line Driver/Receiver |
| ADM3312E | +2.7 | 460kbps | 3 | 3 | 15 kV | Yes | 1 | 5 | 0.1µF | CSP, SOP | 1mA | $1.47 | 15 kV ESD Protected, 2.7V to 3.6V, Serial Port Transceivers with Green Idle |
| ADM3310E | +2.7 | 460kbps | 3 | 5 | 15 kV | Yes | 2 | 5 | 0.1µF | CSP, SOP | 850µA | $1.52 | 15 kV ESD Protected, 2.7V to 3.6V, Serial Port Transceivers with Green Idle |
| ADM3311E | +2.7 | 460kbps | 3 | 5 | 15 kV | Yes | 1 | 5 | 0.1µF | CSP, SOP | 1mA | $1.72 | 15 kV ESD Protected, 2.7V to 3.6V, Serial Port Transceivers with Green Idle |
| ADM3315E | +2.7 | 460kbps | 3 | 3 | 15 kV | Yes | 1 | 5 | 0.1µF | CSP, SOP | 850µA | $1.52 | 15 kV ESD Protected, 2.7V to 3.6V, Serial Port Transceivers with Green Idle |
| ADM3307E | +2.7 | 1Mbps | 5 | 3 | 15 kV | Yes | 1 | 5 | 0.1µF | CSP, SOP | 1.5mA | $1.47 | 15 kV ESD Protected, 2.7V to 3.6V, Serial Port Transceivers with Green Idle |
| ADM560 | +3 | 116kbps | 4 | 5 | --- | Yes | 2 | 4 | 1µF | SOIC, SOP | 5mA | $2.41 | Ultralow Power, +3.3V, RS-232 Notebook PC Serial Port Drivers/Receivers |
| ADM561 | +3 | 116kbps | 4 | 5 | --- | Yes | 0 | 4 | 1µF | SOIC, SOP | 5mA | $2.41 | Ultralow Power, +3.3V, RS-232 Notebook PC Serial Port Drivers/Receivers |
| ADM3101E | +3 | 460kbps | 1 | 1 | 15 kV | No | n/a | 4 | 0.1µF | CSP | 5mA | $0.89 | 3.3 V, Single Channel RS-232 Line Driver/Receiver |
| ADM3232E | +3 | 460kbps | 2 | 2 | 15 kV | No | n/a | 5 | 0.1µF | SOIC, SOP | 3mA | $1.37 | ±15 kV ESD Protected, 3.3 V, RS-232 Line Driver/Receiver |
| ADM1385 | +3 | 460kbps | 2 | 2 | --- | Yes | 2 | 4 | 0.1µF | SOP | 3mA | $1.42 | High-Speed, 2-Channel RS-232/V.28 Interface Transceiver |
| ADM3202 | +3 | 460kbps | 2 | 2 | 15 kV | No | n/a | 4 | 0.1µF | DIP, SOIC, SOP | 3mA | $1.37 | High-Speed, Low Power, 2-Channel RS-232/V.28 Interface Line Driver/Receiver |
| ADM3222 | +3 | 460kbps | 2 | 2 | --- | Yes | 2 |