SNOU198 October 2023 TLV3802
Resistors R1, R7, R8, and R14 are 0-Ω resistors. The input terminals (IN1+, IN1-, IN2+, and IN2-) have corresponding sense lines so that the inputs to the device can be terminated on the lines with 50-Ω to an oscilloscope. This allows the input signals to be observed with minimal loading and distortion. There are also optional input resistors (R5, R6, R9, and R11) for direct 50-Ω termination if required by the input signal generator, otherwise the input resistors can be left uninstalled.