The Keithley 2220-30-1 is a dual-channel programmable DC power supply engineered for benchtop and automated test applications. Each of its two independent, galvanically isolated channels delivers 0–30 V at 0–1.5 A, with 90 W maximum total power output. Linear regulation provides exceptional stability: voltage ripple and noise measure below 1 mV rms (3 mV peak-to-peak) and current ripple stays under 5 mA rms. Voltage setting and readback accuracy reach ±0.03% + 10 mV with 1 mV resolution; current accuracy is ±0.1% + 5 mA with 1 mA resolution. Load and line regulation remain tighter than 0.01% + 3 mV for voltage across its operating range.
## Technical Specifications
• Output: 0–30 V, 0–1.5 A per channel; 90 W total maximum power
• Voltage accuracy (setting/readback): ±0.03% + 10 mV
• Current accuracy (setting/readback): ±0.1% + 5 mA
• Resolution: 1 mV voltage, 1 mA current
• Load regulation: <0.01% + 3 mV (voltage), <0.01% + 3 mA (current)
• Line regulation: <0.01% + 3 mV (voltage), <0.1% + 3 mA (current)
• Noise/ripple: <1 mV rms / <3 mV p-p (voltage); <5 mA rms (current)
• Response time: <150 ms to within 75 mV (1 V to 11 V into 10 Ω load)
• Remote sensing on all channels
• Dimensions: 105.3 mm H × 241.8 mm W × 384.0 mm D
• Weight: 8.2 kg
## Key Features
• Independent channel control with isolated outputs—ideal for testing circuits with different ground references or optical isolation requirements
• Series combination enables 0–60 V at 1.5 A; parallel configuration achieves 0–30 V at 3 A
• Tracking mode maintains a user-defined voltage ratio between channels
• Bipolar output capability (±30 V)
• Overvoltage and overcurrent protection
## Typical Applications
• Multidevice test benches requiring independent power rails
• Characterization of isolated analog and digital circuits
• Development and validation of power management circuits
• Educational and R&D laboratories demanding precision and flexibility
## Compatibility & Integration
Remote sensing terminals on each channel compensate for supply-lead voltage drops, ensuring accurate voltage delivery regardless of load distance. Independent on/off control and isolated architecture support complex test topologies without additional isolation hardware.
