Agilent Technologies B1500A Podręcznik Użytkownika Pobierz pdf (Strona 408)

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7- 26 Agilent B1500 User’s Guide, Edition 7

Function Details

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

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.

Pulse switch

ALWG

2-level

or 3-level

Output 2

Pulse switch

ALWG

2-level

or 3-level

Output 1

1 2 ... 403 404 405 406 407 408 409 410 411 412 413 ... 627 628

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