ADM222/ADM232A/ADM242 are a family of high-speed RS-232 line drivers/receivers with a transmission rate of 200 kB/s, small (0.1uF) charge pump capacitors, single 5V power supply, compliance with all EIA-232-E and V.28 specifications, two drivers and two receivers, and on-board DC-DC converters.
The ADM222, ADM232A, and ADM242 are a family of high‑speed RS‑232 line drivers and receivers that operate from a single 5 V supply. They feature on‑chip charge‑pump voltage converters, provide +5 V to +9 V output swings, and include shutdown and enable functions for power‑saving operation.
The document contains detailed specifications, pin‑function descriptions, ordering information, typical performance curves, and mechanical dimensions for the 16‑lead DIP, 18‑lead DIP, and narrow/wide SOIC packages.
| Data Rate | 200 kB/s |
|---|---|
| Power Supply Current (no load) | 4‑8 mA |
| Output Voltage Swing | +5 V to +9 V |
| Input Logic Threshold Low | 0.8 V |
| Input Logic Threshold High | 2.4 V |
Four external 0.1 µF capacitors are required for the internal charge‑pump voltage converter.
Each device contains two drivers and two receivers.