Datasheet

High capacitance mode
The high capacitance mode permits the measurement of devices with capacitances greater than the normal mode maximum load value of 0.01 μF. In high
capacitance mode the maximum allowed value of the load capacitance is 50 μF.
Voltage output settling time
Time required to reach within 0.1 % of final value with 4.7 μF capacitive load on a fixed range at specified
current range and limit value
200 mV, 2 V ranges 600 μs, at 1 A limit
20 V range 1.5 ms, at 1 A limit
200 V range 20 ms, at 100 mA limit
Current measurement settling time
Time required to reach within 0.1 % of final value after voltage source is stabilized on fixed range. Vout is 5 V
unless noted.
1 μA range 230 ms
10 μA, 100 μA ranges 23 ms
1 mA, 10 mA ranges 0.23 ms
100 mA to 3 A ranges 100 μs
Mode change delay
Delay into high
cap mode
1 μA range 230 ms
10 μA, 100 μA ranges 23 ms
1 mA to 3 A ranges 1 ms
Delay out of high
cap mode
All ranges 10 ms
Noise 10 Hz to 20 MHz (20 V range) 4.5 mVrms
Voltage source range change overshoot (20 V range or below) < 250 mV, 20 MHz bandwidth
High Capacitance
mode working
conditions
V/I mode Voltage source mode only
Range
Current measurement range is limited to fixed range only. 10 nA and
100 nA ranges are not available.
Current limit ≥ 1 μA
Other supplemental characteristics, continued
Resistance measurement
Resistance measurement can be performed under either auto or manual test conditions. Auto resistance measurement is performed in current source
and voltage measurement mode. The total auto resistance measurement error is shown in the table below. The total error of a manual resistance
measurement can be calculated using the voltage andcurrent accuracy information as shown below.
Source I mode, manual ohm measurement (4-wire) Total error = Vmeas/Isrc = R reading x (gain error % of V range + gain error % of
I range + offset error of I range/Isrc value %) + (offset error of V range/Isrc value)
Source V mode, manual ohm measurement (4-wire) Total error = Vsrc/Imeas = 1/ [1/R reading x (gain error % of I range + gain error % of
V range + offset error of V range/Vsrc value %) + (offset error of I range/Vsrc value)]
Measurement speed 1 PLC
Applicable for temperature 23 °C ± 5 °C
Example of total error calculation I source value = 1 mA at 1 mA range
V measure range = 2 V range
Total error (% reading + offset) = (0.02 % + 0.02 % + 200 nA/1 mA) + (350 μV/1 mA) =
0.06 % + 0.35 Ω
18 | Keysight | B2900A Series Precision Source/Measure Unit – Data Sheet