Keithley 2280S-60-3 - Precision Measurement DC Power Supply, 60 V, 3.2 A

The 2280S-60-3 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.

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, 2280S-60-3 supplies can also make measurements with up to 6½ digits of resolution. Voltage output measurements can be resolved down to 100 μV. These supplies measure load currents from 100 nA to amps and can resolve down to 10 nA. Four load current measurement ranges (10 A, 1 A, 100 mA, and 10 mA) 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.

Optimized Performance for Production Test

Series 2280S-60-3 supplies are as powerful in a production test system as they are flexible on the R&D benchtop. In addition to their List Mode function, several other Series 2280S-60-3 features help minimize test time in automated systems. For example, an external trigger input allows hardware synchronization and control by other instruments in the test system. To eliminate many system delays, 2280S-60-3 supplies produce a “measurement complete output” to signal the test system when the supplies have completed their required actions. To reduce measurement time, the reading speed can be increased by reducing the acquisition time from power line cycle integration times, 16 ms at 60 Hz (20 ms at 50 Hz), to 33 μs (40 μs). Furthermore, the 2280S-60-3 supplies can sink up to 0.45 A. Thus, these supplies can quickly discharge a voltage level and change to a different voltage.

A choice of front or rear panel terminals provides enhanced connection flexibility. For maximum voltage accuracy, 4-wire remote sensing ensures that the output voltage programmed is actually the level applied to the load. In addition, the sense lines are monitored in order to detect any breaks in them. These features ensure any production problems can be quickly identified and corrected. Four additional digital I/O pins can provide fault status outputs or control an external relay or status lamp. 2280S-60-3 supplies can be controlled via their built-in GPIB, USB, or LAN interfaces. The USB interface is test and measurement system (TMC) compliant. The LXI Core compliant LAN interface supports controlling and monitoring a 2280S-60-3 supply remotely, so test engineers can always access the power supply and view measurements, even if they’re located on a different continent than their test systems.