Agilent Technologies B1500A User's Guide download pdf (Page 424)

100

101

7- 42 Agilent B1500 User’s Guide, Edition 7

Function Details

Current Offset Cancel

This function subtracts the offset current from the current measurement raw data,

and returns the result as the measurement data. This function is used to compensate

the error factor (offset current) caused by the measurement path such as the

measurement cables, manipulators, or probe card.

The offset cancel is not available for measurement over 100 nA range. For 10 nA

range measur

ement, the offset cancel is performed by using the 1 nA range offset

value. For measurement by a range less than 10 nA, the offset value measured by

each range is used. See Table 7-7 for the effective measurement ran

ge, the allowable

offs

et value, and the module type of the measurement channel.

Enabling offset

ancel func

tion

You can perform the offset current measurement and enable the offset cancel

function as shown below.

1. Click the Calibration button on the main screen to open the Calibration window.

See “Calibration” on page 4-35.

2. Specify the channels to perform the offset current measurement on

the SMU

Zero Cancel tab screen of the Calibration window. To specify the channel, check

the check box to the left of the Name field.

3. To enable the 1 pA range offset current measurement of the

HR/ASU channel,

check the Full Range check box.

4. Set the integration time for the offset measurement to the Integration Time field.

Available value: 1

PLC (power line cycle) to 100 PLC, initial setting 16 PLC.

Set the value longer than the integration time for th

e measurement of the device

under test. Otherwise, the offset cancel will not be performed.

5. Click the Measure... button. A dialog box is opened.

Follow the instruction of the dialog box, and perform the of

fset measurement.

After the measurement, the offset cancel function is automatically enabled.

Open the measurement terminals at the cable end of the device si

de during the

offset current measurement.

NOTE The high resolution A/D converter is used for the offset current measurement.

To disable the offset cancel function, remove the check from the check box to the

left of the Name field.

1 2 ... 419 420 421 422 423 424 425 426 427 428 429 ... 627 628

Comments to this Manuals

No comments

Agilent Technologies B1500A User's Guide Page 424

Comments to this Manuals

Related products and manuals for Measuring, testing & control Agilent Technologies B1500A