描述 Description

The AM26LV32E consists of quadruple differential line receivers with 3-state outputs. These differential receivers have ±15-kV ESD (HBM and IEC61000-4-2, Air-Gap Discharge) and ±8-kV ESD (IEC61000-4-2, Contact Discharge) protection for RS422 bus pins.This device is designed to meet TIA/EIA-422-B and ITU recommendation V.11 drivers with reduced supply voltage. The device is optimized for balanced bus transmission at switching rates up to 32 MHz. The 3-state outputs permit connection directly to a bus-organized system.The AM26LV32E has an internal fail-safe circuitry that prevents the device from putting an unknown voltage signal at the receiver outputs. In the open fail-safe, shorted fail-safe, and terminated fail-safe, a high state is produced at the respective output.This device is supported for partial-power-down applications using Ioff. Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.The AM26LV32EM is characterized for operation from –55°C to 125°C.

特性 Features

? Meets or Exceeds Standard TIA/EIA-422-B and ITU Recommendation V.11
? Operates From a Single 3.3-V Power Supply
? ESD Protection for RS422 Bus Pins
? ±15-kV Human-Body Model (HBM)
? ±8-kV IEC61000-4-2, Contact Discharge
? ±15-kV IEC61000-4-2, Air-Gap Discharge

? Switching Rates up to 32 MHz
? Low Power Dissipation: 27 mW Typ
? Open-Circuit, Short-Circuit, and Terminated Fail-Safe
? ±7-V Common-Mode Input Voltage Range With ±200-mV Sensitivity
? Accepts 5-V Logic Inputs With 3.3-V Supply (Enable Inputs)
? Input Hysteresis: 35 mV Typ
? Pin-to-Pin Compatible With AM26C32, AM26LS32
? Ioff Supports Partial-Power-Down Mode Operation

Additional temperature ranges are available – contact factory