Datasheet

Current source specifications
Range Programming resolution Accuracy
(% reading + offset)
Noise (peak to peak)
0.1 Hz to 10 Hz
1
Max current
(over range)
B2901A/B2902A B2911A/B2912A
±10 nA
2
— 10 fA ±(0.10 % + 50 pA) ≤ 1 pA ±10.5 nA
±100 nA 1 pA 100 fA ±(0.06 % + 100 pA) ≤ 2 pA ±105 nA
±1 μA 10 pA 1 pA ±(0.025 % + 500 pA) ≤ 25 pA ±1.05 μA
±10 μA 100 pA 10 pA ±(0.025 % + 1.5 nA) ≤ 60 pA ±10.5 μA
±100 μA 1 nA 100 pA ±(0.02 % + 25 nA) ≤ 2 nA ±105 μA
±1 mA 10 nA 1 nA ±(0.02 % + 200 nA) ≤ 6 nA ±1.05 mA
±10 mA 100 nA 10 nA ±(0.02 % + 2.5 μA) ≤ 200 nA ±10.5 mA
±100 mA 1 μA 100 nA ±(0.02 % + 20 μA) ≤ 600 nA ±105 mA
±1 A 10 μA 1 μA ±(0.03 % + 1.5 mA) ≤ 70 μA ±1.05 A
±1.5 A 10 μA 1 μA ±(0.05 % + 3.5 mA) ≤ 100 μA ±1.515 A
±3 A 100 μA 10 μA ±(0.4 % + 7 mA) ≤ 120 μA ±3.03 A
±10 A
3
100 μA 10 μA ±(0.4 % + 25 mA)
4
±10.5 A
1. Supplemental characteristics
2. 10 nA range is not available for B2901A/B2902A.
3. 10 A range is available only for pulse mode, not available for DC mode.
4. Measurement speed: 0.01 PLC
Source supplemental characteristics
Temperature coefficient (0 to 18°C and 28 to 50°C) ± (0.1 x accuracy) /°C
Max output power and source/sink limits 31.8 W
±6 V @ ±3.03 A, ±21 V @ ±1.515 A, ±210 V @ ±105 mA, four quadrant source or sink operation
Current limit/compliance Accuracy is same as current source. Minimum value is 1 % of range, or 1 nA in 10 nA range.
Voltage limit/compliance Accuracy is same as voltage source. Minimum value is 1 % of range, or 20 mV in 200 mV range
Over range 101 % of source range for 1.5 A and 3 A ranges. 105 % of source range other than 1.5 A and 3 A
ranges. No over range for 200 V range with current exceeding 105 mA pulse only condition.
Over temperature protection Output turns off then resets at over temperature sensed internally
Voltage output settling time Time required to reach within 0.1 % of final value at open load condition. Step is 10 % to 90 %
range
200 mV, 2 V ranges < 50 μs
20 V range < 110 μs
200 V range < 700 μs
Slew rate ≤ 0.36 V/μs, 20 V and 10 mA ranges, 10 MΩ load resistance
Current output settling time Time required to reach within 0.1 % (0.3 % for 3 A range) of final value at short condition. Step is 10 %
to 90 % range
10 nA, 100 nA ranges < 10 ms
1 μA range < 500 μs
10 μA, 100μA ranges < 250 μs
1 mA to 3 A ranges < 80 μs
Noise 10 Hz to 20 MHz (V source) 3 mVrms, 20 V range
V source overshoot < ±(0.1 % + 10 mV). Step is 10 % to 90 % range, resistive load
I source overshoot < ±0.1 % (< ±0.3 % for 3 A range). Step is 10 % to 90 % range, resistive load
Voltage source range change overshoot ≤ 250 mV. 100 kΩ load, 20 MHz bandwidth
Current source range change overshoot ≤ 250 mV/R load, 20 MHz bandwidth
14 | Keysight | B2900A Series Precision Source/Measure Unit – Data Sheet