The DS3691M/NOPB is a low-power Schottky TTL Line Driver designed to meet the requirements of EIA standards RS-422 and RS-423. It features 4 buffered outputs with high source and sink current capability with internal short circuit protection. A mode control input provides a choice of operation either as 4 single-ended line drivers or 2 differential line drivers. A rise time control pin allows the use of an external capacitor to slow the rise time for suppression of near end crosstalk to other receivers in the cable. Rise time capacitors are primarily intended for wave shaping output signals in the single-ended driver mode. Multipoint applications in differential mode with wave shaping capacitors is not allowed. With the mode select pin low, the DS3691 are dual-differential line drivers with tri-state outputs. It feature ±10V output common-mode range in tri-state mode and 0V output unbalance when operated with ±5V supply.
Tri-state outputs in RS-422 mode
Short-circuit protection for both source and sink outputs
Outputs will not clamp line with power-OFF or in tri-state
Low current PNP inputs compatible with TTL, MOS and CMOS
(EN)
