:ACQuire:FEEDthru

Command Syntax

:ACQuire:FEEDthru {FLATness | THRuput}

Query Syntax

:ACQuire:FEEDthru?

Description

Selects feedthrough compensation which applies to the input channel's sampler circuit.

THRuput

Selects Best Throughput which displays the waveform as it is acquired. FlexDCA displays any noise and feedthrough error on the signal. Best Throughput provides the fastest measurement results and is FlexDCA's default setting. In Jitter mode, the feedthrough compensation is set to Best Throughput and cannot be changed.

FLATness

Select Best Flatness which turns on the feedthrough compensation circuit. This reduces the amount of sampler feedthrough error. The internal compensation circuit drops the noise level of the instrument below the feedthrough level. FlexDCA then takes two data samples of the waveform: one sample with the compensation circuit turned on and one with the circuit turned off. The two results are then subtracted, thereby removing the residual noise error. In TDR/TDT mode, this mode improves the step flatness of TDR measurements.

Available Agruments Versus FlexDCA Mode

FlexDCA Mode	THRuput	FLATness
Eye/Mask Mode	♦ (default)	♦
Oscilloscope Mode	♦ (default)	♦
TDR/TDT Mode	♦	♦ (default)
Jitter Mode	♦	—