28 | Keysight | CX3300 Series Device Current Waveform Analyzer - Data Sheet
CX1151A Passive Probe Interface Adapter characteristics
Warranted specifications are denoted by **, and all others are supplemental characteristics. Specifications are valid after a 30-minute warm-up and 23 ± 5 ºC. All these
characteristics are defined by 14-bit acquisition resolution unless otherwise stated.
About the measurement accuracy
Measurement accuracy can be affected by RF electro-magnetic field having the strengths greater than 3 V/m in the frequency range of 80 MHz to 2 GHz or 1 V/m in the
frequency range of 2 GHz to 2.7 GHz. The extent of this effect depends upon how the instrument is positioned and shielded.
Table 31. CX1151A characteristics overview
Range
8 V
Noise (rms) 1
5.0 mV
Maximum bandwidth (-3 dB) 2
DC offset range and resolution
4 V
2.8 mV
±16 V, 16-bit resolution
1.6 V
0.4 V
0.2 V
0.08 V
1.8 mV
Voltage
measurement
300 MHz
250 μV
140 μV
90 μV
±0.8 V, 16-bit resolution
1. Full bandwidth measured with mainframe (Option B20; 200 MHz bandwidth).
2. Standalone bandwidth with an N2843A passive probe. The effective measurement bandwidth when connected to mainframe can be estimated by the
following equation.
1
BWeffective
=
√
1
1
1
BWmainframe
BWprobe
2
2
BWadapter
2
+
+
Table 32. CX1151A DC measurement accuracy 1
Range
With mainframe
Standalone
23 ±5 ºC
TUSERCAL ±3 ºC, 24 hrs
(High speed mode) 2
TUSERCAL ±3 ºC, 24 hrs (High
resolution mode) 3
23 ±5 ºC
8 V
± (0.6% + 0.8%) **
± (0.6% + 0.8%) **
± (0.6% + 0.8%) **
± (0.6% + 0.8%) **
± (0.6% + 0.8%) **
± (0.9% + 1.2%) **
± (1.3% + 1.7%) **
± (1.3% + 1.7%) **
± (1.3% + 1.7%) **
± (1.3% + 1.7%) **
± (1.3% + 1.7%) **
± (1.6% + 2.1%) **
± (0.4% + 0.6%)
± (0.8% + 0.6%)
± (0.8% + 0.6%)
± (0.4% + 0.6%)
± (0.8% + 0.6%)
± (0.8% + 0.6%)
± (0.3% + 0.4%)
± (0.5% + 0.4%)
± (0.5% + 0.4%)
± (0.3% + 0.4%)
± (0.5% + 0.4%)
± (0.5% + 0.4%)
4 V
1.6 V
0.4 V
0.2 V
0.08 V
Gain [% of readings] +
Offset [% of range]
Range with 10:1 passive probe 4
TUSERCAL ±3 ºC, 24 hrs
(High speed mode) 2
TUSERCAL ±3 ºC, 24 hrs (High
resolution mode) 3
80 V
40 V
± (2.1% + 0.6%)
± (1.5% + 0.6%)
± (0.7% + 0.6%)
± (1.7% + 0.6%)
± (1.2% + 0.6%)
± (0.4% + 0.6%)
± (1.1% + 0.4%)
± (0.8% + 0.4%)
± (0.4% + 0.4%)
± (0.9% + 0.4%)
± (0.7% + 0.4%)
± (0.3% + 0.4%)
16 V
4 V
Gain [% of readings] +
Offset [% of range]
2 V
0.8 V
1. DC measurement condition: 20 ms averaged.
2. After executing the User Calibration with mainframe. High speed mode (14-bit). Supplemental characteristics.
3. After executing the User Calibration with mainframe. High resolution mode (16-bit). Supplemental characteristics.
4. Passive probe used: N2843A.
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