Overview
The ADM3202ARW-REEL, produced by Analog Devices Inc., is a high-speed, 2-channel RS-232/V.28 interface device designed to operate from a single 3.3 V power supply. This component is part of the ADM3202/ADM3222/ADM1385 family, which is optimized for low power consumption and is ideal for battery-powered portable instruments. The device conforms to EIA-232E and CCITT V.28 specifications and supports data rates up to 460 kbps, making it suitable for high-speed data links and applications such as ISDN modems.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Supply Voltage | 3 V to 5.5 V |
| Output Type | Single-Ended |
| Maximum Data Rate | Up to 460 kbps |
| Transmitter Propagation Delay | 0.3 μs to 1.2 μs |
| Receiver Propagation Delay | 0.4 μs to 1 μs |
| Receiver Output Enable/Disable Time | 200 ns |
| ESD Protection | ±8 kV (contact discharge), ±15 kV (air gap discharge) on RS-232 pins (ADM3202 only) |
| Package Options | PDIP, SOIC_N, SOIC_W, SSOP, and TSSOP |
| Charge Pump Capacitors | Four external 0.1 μF capacitors |
Key Features
- Low power consumption with a shutdown facility (ADM3222 and ADM1385) for extended battery life in portable applications.
- High-speed data transmission up to 460 kbps, suitable for ISDN modem standards.
- CMOS technology to minimize power dissipation.
- ESD protection to IEC 1000-4-2 (801.2) on RS-232 pins (ADM3202 only).
- Schmitt-trigger inputs with a hysteresis level of 0.4 V for error-free reception.
- Internal 5 kΩ pull-down resistors on each RS-232 input.
- Enable and shutdown circuitry for power management (ADM3222 and ADM1385).
Applications
- General-purpose RS-232 data links.
- Portable instruments.
- Printers.
- Palmtop computers and PDAs.
- ISDN modems and other high-speed data communication devices.
Q & A
- What is the operating voltage range of the ADM3202ARW-REEL? The operating supply voltage range is 3 V to 5.5 V.
- What is the maximum data rate supported by the ADM3202ARW-REEL? The maximum data rate is up to 460 kbps.
- What types of packages are available for the ADM3202ARW-REEL? The component is available in PDIP, SOIC_N, SOIC_W, SSOP, and TSSOP packages.
- Does the ADM3202ARW-REEL have ESD protection? Yes, the ADM3202 has ESD protection to IEC 1000-4-2 (801.2) on RS-232 pins.
- How does the shutdown facility in ADM3222 and ADM1385 work? The shutdown facility reduces the quiescent current to less than 0.5 μA by powering down the charge pump and transmitter outputs.
- What is the purpose of the Schmitt-trigger inputs in the ADM3202ARW-REEL? The Schmitt-trigger inputs ensure error-free reception for both noisy inputs and inputs with slow transition times.
- Can the ADM3202ARW-REEL be used in high-speed data links? Yes, it is suitable for high-speed data links and applications such as ISDN modems.
- How many external charge pump capacitors are required for the ADM3202ARW-REEL? Four external 0.1 μF capacitors are required.
- What is the typical receiver output enable/disable time for the ADM3202ARW-REEL? The typical receiver output enable/disable time is 200 ns.
- Is the ADM3202ARW-REEL compatible with other RS-232 transceivers? Yes, it is essentially plug-in compatible with the AD230 to AD241 family and derivatives.
