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ADC Zero
Function
NOTE
Function Details
Measurement Time
Measurement Time
Measurement time depends on integration time, measurement range, and other
measurement conditions, and can be expressed by the following formula:
Measurement time = Integration time + Overhead time
Integration time is the time required for measurement, and does not include such
factors as range changing or data compensation, which would be the overhead time.
Integration Time
Integration time is the time required to get measurement data. For accurate and
reliable measurement, integration time should be increased. Integration time can be
set for each type of A/D converter (ADC) used by the measurement channel.
For the Keysight E5260, see the description of the high-speed ADC. The
high-resolution ADC is equipped with the Keysight E5270B only.
•
High-speed ADC
You can adjust the number of averaging samples instead of the integration time.
For high speed measurement. Installed in each measurement module.
•
High-resolution ADC
Available only for the Keysight E5270B. You can adjust the integration time
directly. For high accuracy and high resolution measurement. This ADC is
mounted on the mainframe, and used by the multiple modules alternately.
To set the integration time or the number of averaging samples, select the mode and
set the value as shown in
High Speed ADC.
Available only for the E5270B. The ADC zero function is available for the
high-resolution A/D converter (ADC) and not available for the high-speed ADC.
This function measures the internal offset of the high-resolution ADC and
compensates it automatically. The measurement data displayed on the LCD will be
the data after compensation.
This function is especially effective for the low voltage measurement. Disable the
function in cases where measurement speed is more important than measurement
accuracy. This approximately halves integration time.
6-16
Table
6-1. For the Keysight E5260, see the description of
Keysight E5260/E5270 User's Guide, Edition 6
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