ADM3222ANZ

ADM3222 is a low power, 3.3V, RS-232 line driver/receiver. This transceiver is high speed, 2-channel RS-232/V.28 interface devices that operate from a single 3.3V power supply. Low power consumption and a shutdown facility make it ideal for battery-powered portable instrument. It is conforms to the EIA-232E and CCITT V.28 specifications and operate at data rates up to 460Kbps. Four external 0.1μF charge pump capacitors are used for the voltage doubler/inverter, permitting operation from a single 3.3V supply. 2 contains additional enable and shutdown circuitry. The active-low EN input can be used to three-state the receiver outputs. The active-low SD input is used to power down the charge pump and transmitter outputs, reducing the quiescent current to less than 0.5μA. The receivers remain enabled during shutdown unless disabled using active-low EN. Applications include general-purpose RS-232 data link, portable instruments, printers, palmtop computers and PDAs.

• Meets EIA-232E specifications
• 0.1μF charge pump capacitors
• Operating voltage range from 3V to 5.5V
• VCC power supply current of 1.3mA typical at no load
• Transition region slew rate of 10V/μs typical (measured from +3V to −3V or −3V to +3V)
• Transmitter skew of 30ns, receiver skew of 300ns
• Receiver propagation delay of 0.4μs (TPHL), 0.4μs (TPLH) typical
• Transmitter propagation delay of 0.3μs typical at RL = 3Kohm, CL = 1000pF
• 18-lead plastic dual in-line package (PDIP), -40°C to +85°C temperature range

Note

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party