GENERAL DESCRIPTION

The ADM33xxE line of driver/receiver products is designed to fully meet the EIA-232 standard while operating with a single 2.7 V to 3.6 V power supply. The devices feature an on-board
charge pump dc-to-dc converter, eliminating the need for dual power supplies. This dc-to-dc converter contains a voltage tripler and a voltage inverter that internally generates positive
and negative supplies from the input 3 V power supply. The dc-to-dc converter operates in Green Idle mode, whereby the charge pump oscillator is gated ON and OFF to maintain the output
voltage at ±7.25 V under varying load conditions. This minimizes the power consumption and makes these products ideal for battery-powered portable devices.

FEATURES

Green Idle Power-Saving Mode
Single 2.7 V to 3.6 V Power Supply
Operates with 3 V Logic
0.1 F to 1 F Charge Pump Capacitors
Low EMI
Low Power Shutdown: 20 nA
Full RS-232 Compliance
460 kbits/s Data Rate
1 Receiver Active in Shutdown (2 for ADM3310E)
ESD >15 kV IEC 1000-4-2 on RS-232 I/Os (ADM33xxE)
ESD >15 kV IEC 1000-4-2 on CMOS and RS-232 I/Os(ADM3307E)

APPLICATIONS
Mobile Phone Handsets/Data Cables
Laptop and Notebook Computers
Printers
Peripherals
Modems
PDAs/Hand-Held Devices/Palmtop Computers