MAX208

Features:

` Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
` Operates at 5-V VCC Supply
` Four Drivers and Four Receivers
` Operates Up To 120 kbit/s
` External Capacitors . . . 4 * 0.1 F
` Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
` Applications
− Battery-Powered Systems, PDAs, Notebooks, Laptops, Palmtop PCs, and Hand-Held Equipment


Pinout




Specifications

Supply voltage range, V_CC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. −0.3 V to 6 V
Positive charge pump voltage range, V⁺ (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V_CC−0.3 V to 14 V
Negative charge pump voltage range, V⁻ (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −14 V to 0.3 V
Supply voltage difference, V+ − V− (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 V
Input voltage range, VI: Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to V+ + 0.3 V
Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .                              . ±30 V
Output voltage range, VO: Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V− − 0.3 V to V+ + 0.3 V
Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .                                       . −0.3 V to V_CC + 0.3 V
Short-circuit duration: DOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Package thermal impedance, JA (see Notes 2 and 3): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . 63°C/W
                                                   (see Notes 2 and 3): DW package . . . . . . . . . . . . . . . . . . . . . . . . . . 46°C/W
                                                   (see Notes 2 and 4): NT package . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W
Operating virtual junction temperature, T_J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  −65°C to 150°C
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltages are with respect to network GND.
2. Maximum power dissipation is a function of TJ(max), _JA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is P_D = (T_J(max) − T_A)/_JA. Operating at the absolute maximum T_J of 150°C can affect reliability.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
4. The package thermal impedance is calculated in accordance with JESD 51-3.

Description

The MAX208 device consists of four line drivers, four line receivers, and a dual charge-pump circuit with ±15-kV HBM ESD protection pin to pin (serial-port connection pins, including GND). The MAX208 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/s driver output slew rate.