User Manual

22
Infiniium 90000A Series Oscilloscopes
Performance characteristics
Vertical
Input channels Four
Analog bandwidth
(–3 dB)*
, 10
90254A 90404A 90604A 90804A 91204A 91304A
2.5 GHz 4 GHz 6 GHz 8 GHz 12 GHz 12 GHz
DSP enhanced bandwidth
3
91304A: 13-GHz real-time, user-selectable DSP enhanced bandwidth
Rise time/fall time
11
10 - 90%
20 - 80%
90254A 90404A 90604A 90804A 91204A 91304A
140 ps 105 ps 70 ps 54 ps 35 ps 32 ps
105 ps 79 ps 53 ps 38 ps 25 ps 23 ps
Input impedance
12
50 Ω, ± 3%
Sensitivity
1
1 mV/div to 1 V/div
Input coupling DC
Vertical resolution
2
8 bits, ≥ 12 bits with averaging
Channel to channel isolation
(any two channels with
equal V/div settings)
DC to 3 GHz: 90804A/91204A/91304A: 60 dB (≥ 1000:1)
90254A/90404A/90604A: 50 dB (≥ 316:1)
3 GHz to 8 GHz: 40 dB (≥ 100:1)
8 GHz to BW: 35 dB (≥ 56:1)
DC gain accuracy*
, 1
± 2% of full scale at full resolution channel scale (± 2.5% for 5mV/div)
Maximum input voltage* ± 5 V
Offset range Vertical sensitivity Available offset
0 mV/div to ≥ 40 mV/div ± 0.4 V
> 40 mV/div to ≥ 75 mV/div ± 0.9 V
> 75 mV/div to ≥ 130 mV/div ± 1.6 V
> 130 mV/div to ≥ 240 mV/div ± 3.0 V
> 240 mV/div ± 4.0 V
Offset accuracy*
, 1
≤ 3.5 V: ± (2% of channel offset + 1% of full scale) + 1 mV
> 3.5 V: ± (2% of channel offset + 1% of full scale)
Dynamic range ± 4 div from center screen
DC voltage measurement
accuracy*
, 1
Dual cursor: ± [(DC gain accuracy) + (resolution)]
Single cursor: ± [(DC gain accuracy) + (offset accuracy) + (resolution/2)]
RMS noise floor (scope only)
Volts/div
5 mV
10 mV
20 mV
50 mV
100 mV
200 mV
500 mV
1 V
90254A 90404A 90604A 90804A 91204A 91304A
153 µV 199 µV 259 µV 322 µV 435 µV 467 µV
183 µV 232 µV 295 µV 358 µV 483 µV 536 µV
275 µV 342 µV 424 µV 498 µV 650 µV 758 µV
645 µV 799 µV 985 µV 1.15 mV 1.45 mV 1.73 mV
1.27 mV 1.56 mV 1.92 mV 2.22 mV 2.80 mV 3.37 mV
2.47 mV 3.03 mV 3.71 mV 4.28 mV 5.41 mV 6.58 mV
6.48 mV 8.00 mV 9.91 mV 11.5 mV 14.7 mV 17.4 mV
12.5 mV 15.6 mV 19.2 mV 22.3 mV 28.5 mV 34.1 mV
* Denotes warranted specifications, all others are typical. Specifications are valid after a 30-minute warm-up period, and ±5 °C from annual calibration temperature.
1 Full scale is defined as 8 vertical divisions. Magnification is used below 5 mV/div. Below 5 mV/div, full-scale is defined as 40 mV. The major scale settings are 5 mV, 10 mV, 20
mV, 50 mV, 100 mV, 200 mV, 500 mV, 1 V.
2 Vertical resolution for 8 bits = 0.4% of full scale, for 12 bits = 0.024% of full scale.
3 13 GHz DSP enhanced bandwidth not applicable at 5 mV/div.
10 11.8 GHz analog bandwidth at 5 mV/div for DSO91304A and DSO91204A models.
11 Calculated from the bandwidth.
12 Input impedance is valid when V/div scaling is adjusted to show all waveform vertical values within the scope display.