Datasheet

Page 19
Find us at www.keysight.com
Low Noise Filter (N1294A-022)
Maximum output range 210 V / 3 A (DC)
Output connector Banana, 2-wire/4-wire
Output / residual resistance 0.3 Ω nominal (2-wire)
Small signal bandwidth 2 kHz nominal (1 A and 3 A ranges), 800 Hz nominal (100 mA range)
Noise
Voltage source 0.1 to 10 Hz Same as voltage specification
10 to 20 MHz 350 μVrms (20 V / 1.5 A range, 50 Ω load)
Current source
0.1 to 10 Hz: Same as current specification
10 to 1 MHz 450 μArms (20 V / 1.5 A range, 0.67 Ω load)
Settling time
Voltage source
1
640 μs (2-wire/4-wire)
Current source
2
1.2 ms (2-wire/4-wire)
1. Time required to reach within 0.1 % of final value at open load condition. Step is 10 % to 90 % range. At 20 V range, 1.5 A limit/1.5 A range
2. Time required to reach within 0.1 % of final value at short condition. Step is 10 % to 90 % range. At 1.5 A range, 20 V limit / 20V range
Load transient recovery time: Time to recover to within the settling band following a load change.
800 mA current change
1
Settling band ± 20 mV
Time 450 µs (2-wire), 650 µs (4-wire)
1. At a load change to change the flowing current from +100 mA to +900 mA, 10 V voltage force, 20 V range, 1.5 A limit
Supported
ranges
Voltage 200 mV to 200 V ranges (210 V max)
Current 10 μA to 3 A ranges (3 A max)
Maximum capacitive load 1 mF
Dimensions
41.5 mm H x 58.2 mm W x 127.5 mm D (When the filter is inserted to the output connector of B2961A/
B2962A, the depth is 112.5 mm.)
Weight 0.25 kg
Note:
– The 10 A pulse range and programmable output resistance capability are not supported by external filters.
– For the current output, only DC is supported when using with external filters.
– The current measurement data monitored by the built-in voltage/current monitor can be influenced by the charge and discharge current of the capacitance inside of the filters.
Keysight B2900A Family
The B2900A series is a member of B2900 Precision Instrument Family, which provide a variety of precision measurement solutions
with both sourcing and measurement capabilities. The B2900A series of Source Measure Units (SMUs) have 6.5-digit resolution,
enabling 100 nV/10 fA sourcing and measurement. The B2980A series of picoammeter/electrometer have down to 0.01fA and up
to 10 PΩ. Further information on the B2900 Precision Instrument Family is available at http://www.keysight.com/find/b2900a.
B2980A Picoammeter and Electrometer/High R meter
B2900A Source Measure Unit