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4- 12 Keysight E5260/E5270 Programming Guide, Edition 4

Command Reference

Command Parameters

NOTE

Measurement Ranging (Auto and Limited auto)

The instrument automatically selects the minimum range that covers the

measurement value, and performs the measurement by using the range. For the

limited auto ranging, the instrument does not use the range lower than the specified

range value. For example, if you select the 100 nA limited auto ranging, the

instrument never uses the 10 nA range and below.

NOTE

Before using 1 pA range (only for E5270B)

The measurement channel connected to the ASU (Atto Sense and Switch Unit)

supports the 1 pA range. To use the 1 pA range, set the 1 pA fixed range or the 1 pA

limited auto ranging.

To enable the 1 pA range for the auto ranging mode, execute the SAR command.

The E5270B automatically performs the compensation of the data measured by the

1 pA range and returns the compensated data. You can use either the pre-stored

offset data or the pre-measured offset data.

To measure the offset data, execute the CA command before starting the

measurement for a DUT. This offset data is temporarily memorized until the

E5270B is turned off.

NOTE

Output Ranging

The instrument automatically selects the minimum range that covers the output

value, and applies voltage or current by using the range. For the limited auto

ranging, the instrument does not use the range lower than the specified range value.

For example, if you select the 100 nA limited auto ranging, the instrument never

uses the 10 nA range and below.

Keysight Technologies E5260 Series Programming Guide

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