Keysight E4980A - Product Overview; 42841 A Bias Current Source; Operation Limitations

- 448 Keysight E4980A/AL User’s Guide
Bias Current Interface
Product Overview
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Product Overview
42841A Bias Current Source
The 42841A is a DC bias current source for use with the E4980A/AL (with
Option 002 Bias Current Interface). All measurement setups, including the DC
current bias, can be set from the E4980A/AL front panel.
Operation Limitations
Some E4980A/AL functions have the following limitations when used with the
42841A and the 42842A/B.
o Option 001, Internal DC Bias is disabled.
o DC Bias test signal voltage (V) is disabled.
o Test signal voltage monitor (VDC MON) is disabled.
o Test signal current monitor (IDC MON) is disabled.
o Auto bias polarity control function (BIAS POL) cannot be set to AUTO.
o Measurement range is only 10  and 100 .
o Cable length setting applies only to the 1 m setting.
Turn off all the power switches of the 42841A and E4980A/AL when
connecting or disconnecting any connection involving 42841A and
E4980A/AL.
The 42842C bias current test fixture cannot be used with the E4980A/AL.