ADM1385 Datasheet

• Meets EIA-232E Specifications
• 0.1 µF Charge Pump Capacitors
• Low Power Shutdown (ADM1385)
• DIP, SO, SOIC, SSOP and TSSOP Package Options
• 460 kbps Data Rate
• Specified at 3.3 V
• Upgrade for MAX3222/MAX3232 and LTC1385
• ±8 kV: Contact Discharge
• ±15 kV: Air-Gap Discharge

• General-purpose RS-232 data link
• Portable instruments
• Printers, palmtop computers, PDAs

The ADM1385 are high speed, 2-channel RS232/V.28 interface devices which operate from a single +3.3 V power supply. Low power consumption and a shutdown facility (ADM1385) makes them ideal for battery powered portable instruments.

The ADM1385 conform to the EIA-232E and CCITT V.28 specifications and operate at data rates up to 230 kbps. Four external 0.1 µF charge pump capacitors are used for the voltage doubler/inverter permitting operation from a single +3.3 V supply.

The ADM1385 contain additional enable and shutdown circuitry. The EN input may be used to three-state the receiver outputs. The SD input is used to power down the charge pump and transmitter outputs reducing the quiescent current to less than 1 µA. The receivers remain enabled during shutdown unless disabled using EN.

The ADM1385 is available in a 20 lead SSOP package and is pin compatible with the LTC1385 CG.