Keithley 2231A-30-3 – Compact three-channel power supply for precise power supply and versatile test applications
The Keithley 2231A-30-3 is a powerful, programmable DC power supply with three independent channels, ideal for use in labs, development, and test automation. With two channels capable of delivering up to 30V/3A and a third channel capable of delivering up to 5V/3A, the unit delivers a total output of up to 195W – precise, stable, and reliable.
Thanks to excellent load and line regulation (≤0.02%), extremely low ripple and noise (<5mVrms) and fine setting resolution of 1mV / 1mA, the 2231A-30-3 is perfectly suited for sensitive analog and digital circuits.
The three channels are galvanically isolated from each other, allowing flexible operation in series or parallel. Two tracking/combination modes allow for easy combination of outputs for higher voltages (up to 60V) or currents (up to 6A). The integrated readback function for voltage and current provides precise feedback with a resolution of 10mV/1mA.
Highlights:
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Three isolated outputs: 2 × 0–30V / 3A, 1 × 0–5V / 3A
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Total power: up to 195W
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Low ripple & noise: <5mVrms, <5mApp
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High accuracy: voltage ±0.06% + 20mV, current ±0.5% + 10mA
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Parallel or serial operation possible
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DC isolation voltage up to 246V to ground or between channels
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Integrated measurement feedback (readback) for precise control
Whether for mixed-signal boards, embedded systems, or general-purpose laboratory applications, the Keithley 2231A-30-3 offers the ideal combination of performance, flexibility, and ease of use in a compact device.
