10A SpikeSafe Source Measure Unit

The 10A SpikeSafe Source Measure Unit incorporates continuous power conversion, which means no duty cycle or pulse width limitations. Output pulses have nanosecond rise and fall times – key to precise LED, VCSEL, and LIDAR photometric and electrical measurements. A precision hardware-controlled timing system synchronizes source, measure and external instrumentation. This 10A SMU supplies precision DC, continuous pulse, and single pulse current with excellent pulse fidelity.

The SpikeSafe SMUs (Source Measure Units) are designed with versatile operational modes to cater to a wide range of applications. These general operational modes include:

• DC Mode: Provides continuous direct current for applications that require a steady and stable current supply.
• Continuous Pulse Mode: Allows for pulsed current with adjustable parameters for various testing scenarios.
• Single Pulse Mode: Enables the delivery of a single, precise pulse, ideal for specific testing conditions.

Additionally, SpikeSafe SMUs come with specialized operational modes that are hardware-integrated for user convenience:

• Sweep Mode: Allows for sweeping current or voltage across a range to analyze device characteristics.
• Burst Mode: Facilitates the generation of multiple pulses in quick succession.
• Repetitive Burst Mode: Provides repeated bursts of pulses for extended testing and analysis.

True Differential Digitizer 18bit resolution
In addition to robust current capability, the 10 SMU features a low noise, true differential digitizer optimized for component testing. This digitizer can sample device Vf at 500ksps and pick up millivolt changes in voltage that occur during pulsed operation. This sensitivity supports the most accurate IES LM-85 and CIE 225 measurements. Other instruments, that rely on single-ended circuitry, suffer from high common mode noise, making accurate measurements difficult or impossible.

Devices being tested are protected with a gentle turn-on during ramp-up and with SpikeSafe load protection during operation. SpikeSafe load protection continuously monitors voltage and current patterns and instantly shuts down the drive current when device anomalies are detected.

The notable specifications for this current source are as follows: the low range output current accuracy is 0.04%+350µA. The high range output current accuracy is 0.08%+2mA. The pulse width range is 1µs-15000s and the pulse width accuracy is 1µs. The pulse rise/fall time is 200ns-3µs and the typical pulse width jitter is 30ns.

10A SMU Total Output Power
Using only internal power, the total output power for 10A SMU is 1,350W in pulsed mode and 600W in DC / constant current mode. For increased power output flexibility, consider the SMU 10A high current model.