User`s guide

4- 66 Agilent EasyEXPERT User’s Guide Vol. 1, Edition 1
Function Details
SMU Measurement Time
Number of averaging samples = Factor / Tm
Tm: Required time for one sample measurement
If Factor / Tm < 1, Number of averaging samples = 1.
• High-resolution ADC
For high accuracy and high resolution measurement. This ADC is mounted on
the mainframe, and used by the multiple modules alternately. Sets the
integration time for getting one measurement data by setting the Mode and the
Factor value. The high-resolution ADC cannot be used for the measurements
using SMU pulse.
AUTO Integration time = Factor  reference
Factor = 1 to 127
where reference is the integration time automatically set by the
B1500; it cannot be changed.
MANUAL Integration time = Factor  80 sec
Factor = 1 to 127
PLC Integration time = Factor / power line frequency
Factor = 1 to 100
The Factor value means the number of power line cycles.
ADC Zero
Function
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.
NOTE 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.