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What is a Source Measure Unit (SMU)?
The Source Measure Unit (SMU) is an instrument that can precisely source voltage or current and simultaneously measure voltage and/or current. It combines the useful features of a digital multimeter (DMM), power supply, true current source, electronic load and pulse generator, all into a single, tightly synchronized instrument in a compact form factor. SMUs are considered more useful than the combination of any of the five instruments, due to the measuring instrument’s versatility and high accuracy performance.
Software for your Source Measure UnitStart sourcing and measuring in minutes, and develop your next application test
Start measuring in minutes without complex programming. Perform I-V characterization and more.
The familiar user experience of a curve tracer for two-terminal devices for tracing characteristics through both current and voltage.
Learning CenterLearn Source Measure Units(SMU) basics - from fundamental measurement concepts to key industry applications, such as how to use an SMU in a 2 terminal and 3 terminal device obtaining IV curves and how an SMU can simplify the test setup and increase productivity.
In this comprehensive White Paper, you will learn more about the real benefits of SMU instruments for test and measurement applications and their ability to source and measure signals simultaneously.
DC-DC converters are widely used electronic components that convert DC power from one voltage level to another while regulating the output voltage. This solution brief explains how to simplify DC-DC converter testing using a Keithley two-channel Series 2600B System SourceMeter SMU Instrument and a Tektronix Oscilloscope.
Keithley has long had a strong presence in high power semiconductor device test. Most recently, Keithley introduced the 2470 1.1 kV Graphical SourceMeter® Source Measure Unit to address challenging measurements for SiC and GaN device testing. This application note considers the application of this new source measure unit with Keithley’s KickStart software for high voltage semiconductor.
Outputting high quality current pulses for characterizing VCSELs for LIDAR or other optoelectronic devices poses many challenges. Read this application note to learn how you can easily source current pulses as short as 10 μs and minimize device self heating.