KEYSIGHT N6782A 电源/电源智能分析模块 (2-象限, 20V, ±3A, 20W)

DC output ratings (volts/amps/watts): 20 V/±3 A/20 W 

Ripple & noise (p-p/rms): 12 mV/1.2 mV

Voltage programming accuracy: 0.025% + 1.8 mV                               

Current programming accuracy: 0.04% + 0.3 mA

Voltage measurement accuracy: 0.025% + 1.2 mV

Current measurement accuracy: 0.03% + 0.25 mA  

See the datasheet to choose suitable options

Datasheet