ADM3202/ADM3222/ADM1385 are high speed, 2 channel RS-232/V.28 interface devices that operate from a single 3.3 V power supply. Low power consumption and a shutdown facility (ADM3222/ADM1385) make them ideal for battery-powered portable instruments.
The ADM1385, together with the ADM3202 and ADM3222, provides high‑speed RS‑232/V.28 interfaces from a single 3.3 V supply. It features low power consumption, a shutdown facility for battery‑powered instruments, and ESD protection on RS‑232 pins.
The device is offered in a 20‑lead SSOP package, pin‑compatible with the LTC1385, and includes enable, shutdown, and driver‑disable pins for flexible control. Detailed specifications, absolute maximum ratings, and typical performance curves are provided in the handbook.
| Operating Voltage Range | 3.0 V – 5.5 V |
|---|---|
| Shutdown Supply Current | 0.01 µA – 0.5 µA |
| Maximum Data Rate | 460 kbps |
| Input Logic Threshold Low | 0.8 V |
| RS‑232 Output Voltage Swing | +5.0 V to +5.2 V |
It operates from a 3.3 V supply with a tolerance of ±0.3 V.
Yes, the SD pin provides a shutdown control that disables the charge pump and all transmitters and receivers.
The device supports data rates up to 460 kbps.
It is available in a 20‑lead SSOP package that is pin‑compatible with the LTC1385.