Keithley 2220-30-1

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.