Agilent Technologies B1500A Manual de servicio Pagina 139

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Agilent B1500A/B1505A Programming Guide, Edition 11 2-53
Remote Mode Functions
SPGU Module
SPGU Module
SPGU is the pulse generator module designed for the semiconductor parametric test
application and provides the following key functions.
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 operation mode (effective for all channels installed in B1500A):
PG (pulse generator) or ALWG (arbitrary linear waveform generator)
Channel output operation mode:
Free run, count, or duration
PG output mode:
2-level pulse, 3-level pulse, or DC bias. For each channel.
Terminal voltage measurement and load impedance calculation
Automatic level adjustment by using load impedance measured or specified
Pulse switch, which is more durable than mechanical relays, and better suited for
frequent switching applications.
Figure 2-29 SPGU Simplified Block Diagram
50 ohm
Pulse switch
ALWG
PG
2-level
or 3-level
Output 2
or
50 ohm
Pulse switch
ALWG
PG
2-level
or 3-level
Output 1
or
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