TTI SMU4001 – Four Quadrant Source Measure Unit (Maximum Voltage ± 21V)

• Four quadrant source, sink and measure
• Maximum voltage: ± 21V
• Voltage ranges: 20mV to 20V
• 0.015% basic accuracy with 6.5-digit resolution
• 0.1µV and 100fA resolution

The SMU4000 Series provides class-leading performance at a new and affordable price point for a four-quadrant SMU. Combining touchscreen technology with an intuitive graphical user interface, it provides a clear and natural flow through the test and measurement process.

The SMU4000 integrates a fast and agile, high-power four-quadrant voltage / current source with a precise voltage/current meter in a compact, half-rack 2U casing. It is capable of precisely supplying positive and negative voltages, sourcing or sinking power, all while simultaneously measuring both current and voltage for I-V characterization.

With high current and power combined with fast measurements and low glitch auto-ranging speed, it is the ideal solution for a wide variety of applications. The SMU4000 is an all-in-one solution for simplifying test applications such as battery charging/discharging, I-V characterization, semiconductor testing, and more.

The Aim-TTi PowerFlex system provides a semi-constant power characteristic so that the current capability rises as the voltage falls.

The SMU achieves full instrument output power across the majority of the voltage range, unlike conventional SMUs, where the maximum power can only be achieved at the top of each voltage range.

The left chart below represents the power curve for SMU4001. The chart on the right represents the SMU4201.

There are many sources, load, and measure operational modes to choose from, each one allows advanced user-settable configurations to be created based on the specifics of that mode. 8 EasySet pre-sets are also included to allow instant use of the SMU in the simplest form, including Power Supply, Current Source, Load, Voltmeter, Ammeter, Ohmmeter, Insulation resistance meter, and Leakage current meter. These setups form a convenient base from which settings can be edited using the manual setup mode configuration. 

In addition to high-precision DC and pulsed source and measure capabilities, the SMU4000 Series has a built-in sweep setting that supports standard sweep parameters; such as Constant and pulsed sweep operation, double sweep functions, and linear & logarithmic modes that are fully functional from the front panel with a simple setup process involving only a few steps, providing full graphical results on the screen.

Arbitrary list sweeps of up to 100K points can be directly uploaded to the instrument via the flash drive.

The SMU4000 offers advanced math features, including Deviation, % Deviation, % Ratio, and MX + b, alongside measured tolerance band sorting, which can be applied to live data readings.

Real-time calculated information for the primary and secondary measurements, including minimum/maximum samples, an average, span, and standard deviation, are available to view at any time.

Sense terminals are provided for 4 Wire operation and guard capabilities. 4 Wire measurements are important when it is essential to measure the voltage delivered to a load, independent of any voltage drops in the connecting supply wires or contacts.

The guard capabilities can be utilized for very low current and high impedance applications where potential unwanted leakage, stray capacitance, or magnetic coupling may be a problem.

‘SMU LINK’ is an accessory that can be used to connect two SMUs together to perform simultaneously via a handshake triggering system, effectively creating a fully functioning 2-channel SMU, useful for testing three leaded components such as small signal BJTs, FET, and more.