ADM238LJN – TBC

The ADM238LJN is a full-duplex RS-232 transceiver integrated circuit, typically housed in a 24-pin Plastic Dual In-Line Package (PDIP). It implements four independent driver and four receiver channels, enabling simultaneous transmission and reception on four separate RS-232 serial communication links. The device conforms to the TIA/EIA-232-F standard, providing voltage level translation between single-ended UART logic levels and the bipolar voltage levels required for RS-232 communication. Operation typically requires external charge pump capacitors to generate the necessary ±10V transmit levels from a single +5V supply. The ADM238LJN features integrated short-circuit protection on the driver outputs, limiting output current during fault conditions. Receiver inputs are typically designed with hysteresis to improve noise immunity and signal integrity in electrically noisy environments.