AM26LS30

Pinout




Specifications

Rating	Symbol	Value	Unit
Power Supply Voltage	VCC VEE	0.5, +7.0 7.0, +0.5	Vdc
Input Voltage (All Inputs)	Vin	0.5, +20	Vdc
Applied Output Voltage when in High Impedance Mode (VCC = 5.0 V, Pin 4 = Logic 0, Pins 3, 6 = Logic 1) Output Voltage with VCC, VEE = 0 V	Vza Vzb	±15 ±15	Vdc
Output Current	IO	Self limiting
Junction Temperature	TJ	65, +150	°C

Description

The AM26LS30 is a dual function line driver it can be configured as two differential output drivers which comply with EIA422A Standard, or as four singleended drivers which comply with EIA423A Standard. The mode of operation is selected with the Mode pin (Pin 4) and appropriate power supplies (see Table 1). Each of the four outputs is capable of sourcing and sinking 60 to 70 mA while providing sufficient voltage to ensure proper data
transmission.

As differential drivers, data rates to 10 Mbaud can be transmitted over a twisted pair for a distance determined by
the cable characteristics. EIA422A Standard provides guidelines for cable length versus data rate. The advantage
of a differential (balanced) system over a singleended system is greater noise immunity, common mode rejection,
and higher data rates.

Where extraneous noise sources are not a problem, the AM26LS30 may be configured as four singleended drivers
transmitting data rates to 100 Kbaud. Crosstalk among wires within a cable is controlled by the use of the slew rate control pins on the AM26LS30.