Agilent Technologies B1500A Guía de usuario Pagina 408

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7- 26 Agilent B1500 User’s Guide, Edition 7
Function Details
SPGU Module
SPGU Module
High voltage SPGU is a pulse generator module designed for semiconductor
parametric test applications and provides the following key functions. The SPGU
can be controlled by using the SPGU Control classic test or the SPGU setup
function in the I/V Sweep, Multi Channel I/V Sweep, I/V List Sweep, and I/V-t
Sampling classic tests.
Number of output channels: 2 channels per module
Output impedance: 50 Ω
Output level: 0 to ± 40 V (open load), ± 20 V (50 Ω load)
SPGU op
eration mode (effective for all channels installed in B1500A):
PG (pulse generator) or ALWG (arbitrary linear waveform generator)
Channel output operation mode:
Free run, duration, or pulse count (PG mode)/sequence count (ALWG mode)
Free run mode is not available for the SPGU Control classic test.
PG output mode:
2-level pulse or 3-level pulse, for each channel
Pulse switch, which is more durable than mechanical relays, and better suited for
fr
equent s
witching applications.
Automatic voltage level adjustment by specifying load impedance of DUT
Figure 7-15 SPGU Simplified Circuit Diagram
NOTE To use the SPGU for I/V-t Sampling tests, the sampling interval must be 2 ms.
50
7
Pulse switch
ALWG
PG
2-level
or 3-level
Output 2
or
50
7
Pulse switch
ALWG
PG
2-level
or 3-level
Output 1
or
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