The Keithley 428-PROG Programmable Current Amplifier converts fast, small currents to a voltage, which can be easily digitized or displayed by an oscilloscope, waveform analyzer, or data acquisition system.
The 428-PROG uses a sophisticated “feedback current” circuit to achieve both fast rise times and sub-picoamp noise.
The gain of the 428-PROG is adjustable in decade increments from 10-3 V/A to 10-11 V/A, with selectable rise times from 2 µs to 300 ms.
The 428-PROG offers fast response at low current levels, which is unmatched by either electrometers or picoammeters.
The nine current amplification ranges allow the greatest flexibility in making speed/noise tradeoffs.
Keithley 428-PROG Programmable Current Amplifier and other Current Amplifiers / Current Probe Amplifiers for sale at Test Equipment Center.
Keithley 428-PROG products for sale at Test Equipment Center are thoroughly tested, and receive electrical and cosmetic reconditioning as needed prior to sale. All products include a 90 day warranty from Test Equipment Center to ensure your complete satisfaction.
Test Equipment Center sells used Current Amplifiers / Current Probe Amplifiers and Laboratory Test Products from Keithley and many other test equipment manufacturers.
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2 uS Rise Time 
