23 | Keysight | CX3300 Series Device Current Waveform Analyzer - Data Sheet
CX1100 Series Current Sensors performance 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 19. CX1101A characteristics overview
Noise (rms) 3
Maximum bandwidth
(-3 dB) 4
2
Range
RIN
10 A
1 A
15 mΩ (typ)
10 mA
2 mA
3 MHz 5
100 MHz
100 MHz
100 MHz
200 mA
20 mA
2 mA
0.2 mA
20 μA
410 mΩ (typ)
550 mΩ (max)
Current measurement 1
3 μA
400 nA
40 nA
100 MHz
25 kHz
25 kHz
200 μA
20 μA
50 Ω (typ)
77 Ω (max)
1. Sensor Head used to measure the characteristics: CX1206 for 10 A range and CX1203A for all other ranges.
2. The slide switch of CX1203A to be set to “0 Ω”.
3. 20 MHz noise bandwidth measured with mainframe
4. Standalone bandwidth. The effective measurement bandwidth when connected to mainframe can be estimated by the following equation.
1
BWeffective
=
√
1
1
BWmainframe
BWsensor
2
2
+
5. -4 dB bandwidth
Table 20. CX1101A DC measurement accuracy 1
Range
Standalone
23 ±5 ºC
With mainframe
TUSERCAL ±3 ºC,
24 hrs 2
23 ±5 ºC
10 A
± (5% + 5%)
± (2% + 2%) **
± (2% + 2%) **
± (2% + 2%) **
± (2% + N/A) **
± (2% + 2%) **
± (2% + N/A) **
± (5.7% + 5.9%)
± (2.7% + 2.9%) **
± (2.7% + 2.9%) **
± (2.7% + 2.9%) **
± (2.7% + N/A) **
± (2.7% + 2.9%) **
± (2.7% + N/A) **
N/A
1 A
± (1.8% + 0.4%)
± (0.7% + 0.4%)
± (0.6% + 0.3%)
± (0.7% + 1.1%)
± (0.7% + 0.3%)
± (0.7% + 1.1%)
200 mA
Gain [% of readings] +
Offset [% of range]
20 mA
2 mA
200 μA
20 μA
1. Accuracy is defined at VCM = 0 V (zero Common Mode input voltage at either +IIN or -IIN). Add 0.7% typical to Offset error for Vcm up to 40 V.
The “readings” means measured data by mainframe. DC measurement condition: 20 ms averaged.
2 After executing the User Calibration with mainframe. Supplemental characteristics.
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