ESD Protection for RS-232 I/O Pins

? ±15 kV ? Human-Body Model

Meets or Exceeds the Requirements of

TIA/EIA-232-F and ITU v.28 Standards

Operates at 5-V VCC Supply

Operates Up To 120 kbit/s

External Capacitors . . . 4 × 0.1 μF

Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

Applications

? Battery-Powered Systems, PDAs,

Notebooks, Laptops, Palmtop PCs, and

Hand-Held Equipment

description/ordering information

The MAX207 consists of five line drivers, three line receivers, and a dual charge-pump circuit with ±15-kV ESD

protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of

TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and

the serial-port connector. The charge pump and four small external capacitors allow operation from a single 5-V

supply. The devices operate at data signaling rates up to 120 kbit/s and a maximum of 30-V/μs driver output

slew rate.