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Precision Measurement, Low Noise, Programmable DC Power Supplies

Precision Measurement, Low Noise, Programmable DC Power Supplies
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Precision Measurement, Low Noise, Programmable DC Power Supplies - 1

The Series 2280S Precision Measurement, Low Noise, Programmable DC Power Supplies are much more than just sources of clean power; they are also precision measurement instruments. They can source stable, low noise voltages as well as monitor load currents over a wide dynamic range from amps to nanoamps. The Model 2280S-32-6 can output up to 32V at up to 6A; the Model 2280S-60-3 can output up to 60V at up to 3.2A. • Monitor load currents from 100nA to 6A with high accuracy • Measure voltage and current with 6½-digit resolution • Capture dynamic load currents as short as 140µs • Output up to 192W of low noise, linear regulated power • Programmable rise and fall times eliminate voltage overshoot and undershoot transients • Built-in graphing simplifies analyzing trends or displaying voltage or current waveforms • High resolution TFT display and soft-key/icon-based user interface simplify power supply operation • Programmable output sequences reduce test times • Sink up to 0.45A to discharge voltage quickly Both supplies use linear regulation to ensure low output noise and superior load current measurement sensitivity. A high resolution color Thin Film Transistor (TFT) screen displays a wide range of information on measurements. Soft-key buttons and a navigation wheel combine with the TFT display to provide an easy-to-navigate user interface that speeds instrument setup and operation. In addition, built-in plotting functions allow monitoring trends such as drift. These supplies provide the flexibility required for both benchtop and automated test system applications. For example, they provide a list mode, triggers, and other speed optimization functions to minimize test time in automated testing applications. DMM-Quality Low Current Measurements with High Resolution Unlike conventional power supplies, Series 2280S supplies can also make measurements with up to 6½ digits of resolution. Voltage output measurements can be resolved down to 100µV. These supplies measure load currents from 100nA to amps and can resolve down to 10nA. Four load current measurement ranges (10A, 1A, 100mA, and 10mA) support measuring a device’s full load current, standby mode current, and small sleep mode currents with DMM-quality accuracy. The high resolution allows characterizing small changes in load currents with confidence. It also makes it possible to make a broad range of measurements on a single range with excellent accuracy across both low and high current values. Measure Rapidly Changing Loads To monitor fast-changing and pulse-like load currents properly, Series 2280S supplies offer the speed necessary to capture load changes that occur at intervals as short as 140µs. This capability allows designers and manufacturers of portable, battery-operated devices to monitor load currents easily in all of a device’s operating modes so they can determine the device’s total power consumption. This high speed measurement capability allows measuring each state of a power-up load sequence and a power-down sequence. Measurements can be made as fast as 2500 readings per second, making it possible to characterize and test the current draw at each of the start-up states. Delay • Digital I/O for direct communication with other devices and instruments • GPIB, USB, and LAN interfaces • Built-in web page simplifies automated control/monitoring • Automate tests easily with KickStart start-up software Precision measurement, low noise, programmable DC power supplies Precision Measurement, Low Noise, Programmable DC Power Supplies Figure 1. Make time-critical measurements on fast-changing or pulse-like loads. An external trigger initiates the acquisition. Programmable delay and measure times enable measurements at a specific time on the load current pulse. 1.888.KEITHLEY (U.S. only) www.keithley.com A Greater Measure of Confidence Precision measurement, low noise, programmable DC power supplies

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Precision Measurement, Low Noise, Programmable DC Power Supplies - 2

Precision Measurement, Low Noise, Programmable DC Power Supplies active Precision measurement, low noise, programmable DC power supplies Ordering Information 2280S-32-6 Precision Measurement DC Power Supply, 32V, 6A 2280S-60-3 Precision Measurement DC Power Supply, 60V, 3.2A Accessories Supplied Quick Start Guide KickStart Quick Start Guide User Documentation CD LAN Crossover Cable Power Cord Rear Panel Mating Connector with Cover Rear Panel Mating Connector and Cover LAN Crossover Cable USB Cable Type A to B, 1m (3.3 ft) Trigger Link cable to connect 2280S digital I/O to Trigger Link I/O...

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Precision Measurement, Low Noise, Programmable DC Power Supplies - 3

Perform Semi-Automated Testing Right on Your Bench Test your design over its operating voltage range automatically or study how it responds to DC output changes by using the Series 2280S supplies’ built-in List Mode function. Create and save up to 10 lists of sequenced voltage levels with up to 99 distinct voltages in each list. The duration of each voltage level can be set as short as 1ms or as long as 60s. Create simple linear ramps or any custom configuration from either the front panel or an interface bus. A single trigger will automatically execute the list once or multiple times....

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Precision Measurement, Low Noise, Programmable DC Power Supplies - 4

Precision Measurement, Low Noise, Programmable DC Power Supplies Trend Analysis and Load Current Characterization Use the built-in graphing function to monitor the stability of the load current or capture and display a dynamic load current. Or, use it to view a start-up or turn-off load current. Series 2280S supplies can take measurements quickly and store up to 2,500 measurement points. In addition to displaying a voltage or current waveform or both, they can compute statistics on the stored data. Statistical calculation options include average, maximum, minimum, peak-peak, and standard...

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Precision Measurement, Low Noise, Programmable DC Power Supplies - 5

Precision Measurement, Low Noise, Programmable DC Power Supplies Voltage Current Maximum Power VOLTAGE 1 SOURCE SETTING Accuracy Resolution MEASUREMENT 2 (0.5V over-range) Accuracy Resolution ADDITIONAL OFFSET AT FASTER MEASUREMENT SETTINGS 2280S-32-6 0.21 mV 5½ (0.1 PLC) 1.44 mV 4½ (0.01 PLC) 7.60 mV 3½ (0.002 PLC) To facilitate production test software development, native National Instruments LabVIEW™ drivers, IVI-C and IVI-COM drivers are available on the Keithley website, www.keithley.com. 23°C ±5°C with 1-hour instrument warm-up. Load Line OUTPUT RIPPLE AND NOISE Bandwidth 20Hz–20MHz...

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