The SN75158P is a dual differential line driver in 8 pin DIP package. This device is designed to satisfy the requirements set by ANSI EIA/TIA-422-B and ITU V.11 interface specifications. The outputs provide complementary signals with high current capability for driving balanced lines such as twisted pair at normal line impedance without high power dissipation. The output stages are TTL totem pole outputs providing a high impedance state in power off condition.