76 Keysight Infiniium MXR-Series Real-Time Oscilloscopes User's Guide
6 Testing Performance
DC Gain Accuracy Test
Specifications
Equipment
Required
Ensure that the input voltage to the oscilloscope never exceeds ±5 V.
The oscilloscope must be warmed up (with the oscilloscope application running) for at least
30 minutes at ambient temperature prior to the start of any performance test.
DC Gain
Accuracy
±2% of full scale at full resolution channel scale (±5 °C from calibration
temperature)
50 Ω Input Impedance: Full scale is defined as 8 vertical divisions. Magnification is used below
2 mV/div. Below 2 mV full scale is defined as 16 mV. The major scale settings are 5 mV, 10 mV,
20 mV, 50 mV, 100 mV, 200 mV, 500 mV and 1 V.
1MΩ Input Impedance: Full scale is defined as 8 vertical divisions. The major scale settings are
5 mV, 10 mV, 20 mV, 50 mV, 100 mV, 200 mV, 500 mV, 1 V, 2 V, and 5 V.
Description Critical specifications Recommended model
or part number
Digital Multimeter DC voltage measurement accuracy better than
±0.1% of reading
34411A, 3458A, or
34465A
Cable Assembly (2
required)
50 Ω characteristic impedance, BNC (m)
connectors
8120-1840
DC Power Supply 100V 6614C
Adapter BNC Tee (m)(f)(f) 1250-0781
Adapters (2) BNC (f) to dual banana (m) 1251-2277