Datasheet

Output Specications
Accuracy is given as ± (% of output + counts of least signicant digit (LSD)) at 23 °C ± 5 °C, with relative humidity less than 80% R.H.
and after a warm-up period of at least ve minutes. The maximum input voltage protection is 30 VDC.
Constant voltage and current outputs
Function Range Resolution Accuracy Maximum output
Constant voltage (CV) ± 1.5000 V 0.1 mV
0.03% + 3 25 mA or above
1
± 15.000 V 1 mV
Constant current (CC) ± 25.000 mA 1 µA 0.03% + 5 12 V or above
2, 3
1. Loading coefcient: 0.012 mV/mA for 1.5 V output.
2. Loading coefcient: 1 µA/ V. The minimum output voltage is based on 20 mA into a 600 Ω load.
3. If the current loop has a 24-V power, a minimum output voltage of 24 V is achievable with a 20 mA current into a 1200-Ω load (applicable only in Simulation
Mode).
Square wave output
Output Range Resolution Accuracy
Frequency (Hz) 0.5, 1, 2, 5, 10, 15, 20, 25, 30, 40, 50,
60, 75, 80, 100, 120, 150, 200, 240,
300, 400, 480, 600, 800, 1200, 1600,
2400, 4800
0.01 0.005% + 1
Duty Cycle (%)
4
0.39% to 99.60% 0.390625% 0.01% + 0.2%
5
Pulse Width (ms)
4
1/Frequency Range/256 0.01% + 0.3 ms
Amplitude (V) 5 V, 12 V 0.1 V 2% + 0.2 V
±5 V, ±12 V 0.1 V 2% + 0.4 V
4. The positive or negative pulse width must be greater than 50 µs to enable adjustment of duty cycle or pulse width under different frequencies. Otherwise,
the accuracy and range will be different from the specications dened.
5. For signal frequencies greater than 1 kHz, add an addition of 0.1% per kHz.
07 | Keysight | U1401B Handheld Multi-function Calibrator/Meter - Data Sheet