General Description

The MAX1489E quad, low-power line receiver is designed for EIA/TIA-232, EIA/TIA-562, and CCITT V.28 communications in harsh environments. Each receiver input is protected against ±15kV electrostatic discharge (ESD) shocks. These inputs have a ±25V range and feature hysteresis and time-domain filtering. The outputs are TTL and CMOS compatible. The MAX1489E has a 120kbps guaranteed data rate. Supply current is typically 350µA.

Features

♦ Enhanced ESD Protection:

±15kV—Human Body Model

±8kV—IEC1000-4-2, Contact Discharge

±15kV—IEC1000-4-2, Air-Gap Discharge

♦ Latchup Free During an ESD Event

♦ Low 350µA Supply Current

♦ Input Hysteresis and Time-Domain Filtering

Eliminate the Need for External Filtering

♦ Stable Input Thresholds

♦ Pin Compatible with MC1489, MC14C89, SN75189,

SN75C189, DS1489, and DS14C89

Applications

PC Motherboards

Modems

Interfacing Data Terminal Equipment (DTE) with

Data Circuit-Terminating Equipment (DCE)

Equipment Meeting IEC1000-4-2 (formerly

IEC801-2) or ±15kV ESD Protection