Keithley 2280S ApplicationCards free download

File name 2280S_ApplicationCards.pdf

Applications Overview Monitoring Sleep and Standby Currents from Low Power Devices Determining Device Power Consumption when Device Current is Drawn in Short Pulses Series 2280S Precision Measurement Programmable DC Power Supplies Application Overview: Monitoring Sleep and Standby Currents from Low Power Devices Measuring sleep mode and standby mode currents drawn by low power, portable devices such as consumer products (cellular phones, tablets, laptops), industrial products (wireless transmitters, intrinsically safe instruments), and implantable medical devices (pacemakers, defibrillators, neurological stimulators) is essential to ensure that critical power consumption specifications are met. These tests require precise low current measurements down to microamp levels, which requires not only good measurement techniques but also sensitive instrumentation with special capabilities for measuring very small load currents. However, specialized, sensitive instrumentation is costly and adds more complexity to the test circuit. A readback power supply for both sourcing voltage and measuring current is one solution, but most conventional programmable power supplies have a measuring resolution of only milliamps at best and, therefore, cannot be used for low current measurements. Unlike conventional power supplies, Keithley's Series 2280S Precision Measurement, Low Noise, Programmable DC Power Supplies make digital multimeter- (DMM) quality measurements with up to 6