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In this section:
Introduction .............................................................................. 1-1
Source-measure unit (SMU)..................................................... 1-1
Preamplifier .............................................................................. 1-2
Ground unit (GNDU) ................................................................ 1-2
Introduction
This document provides information about the 4200-SMU, 4201-SMU, 4210-SMU, and 4211-SMU
source-measure units and related instruments, including:
•
(on page 2-1): Basic information on connecting source-measure
units (SMUs), the preamplifier, and the ground unit to devices under test (DUTs), making test
equipment connections, and making control and data connections.
•
(on page 3-1): Describes the SMU operation modes, the options
available for each mode, and the SMU test settings.
•
(on page 4-1): Provides information about the SMUs and related
instruments, including 4200-PAs and ground units, and provides information
•
(on page 5-1): Provides information on guarding, remote sensing, sink
operation, and sweep concepts.
•
(on page 6-1): Includes information on improving measurement
stability, making low-current measurements, and reducing interference.
Source-measure unit (SMU)
The fundamental instrument module used by the 4200A-SCS is the source-measure unit (SMU). The
basic function of a SMU is to perform one of the following source-measure operations:
•
Source voltage and measure current or voltage
•
Source current and measure voltage or current
Section 1
Introduction