Keithley Instruments specializes in advanced electrical test and measurement systems, including sensitive source measure units (SMUs), DC power supplies, and digital multimeters.
Keithley Instruments, a Tektronix company, designs and manufactures high-performance electrical test instruments and systems for the electronics industry. For over 75 years, Keithley has been a leader in low-level voltage, current, and resistance measurements, providing solutions that enable precise characterization of semiconductor devices and electronic components.
Their extensive product portfolio includes the renowned SourceMeter® source measure units (SMU), digital multimeters, data acquisition systems, and arbitrary function generators. Now integrated with Tektronix, Keithley continues to innovate in research, education, and production testing environments.
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Software, drivers, and firmware updates for Keithley products, including KickStart Instrument Control Software and ACS, can be downloaded from the official Tektronix support website.
You can search for user guides and service manuals for both current and legacy Keithley instruments on the Tektronix product support page or browse our archive here.
Yes, calibration and repair services for Keithley instruments are handled through Tektronix service centers worldwide.
The SourceMeter (SMU) is a proprietary Keithley instrument that combines a precision power supply with a high-performance digital multimeter, capable of sourcing and measuring voltage and current simultaneously.