Performance Characteristics (continued)
Vertical System: Analog Channels (continued)
1,2
Range
54621A/D, 54622A/D, 54624A: 1 mV/div to 5 V/div
54641A/D, 54642A/D: 2 mV/div to 5 V/div
Maximum Input
CAT I 300 Vrms, 400 Vpk, CAT II 100 Vrms, 400 Vpk
With 10073C/10074C 10:1 probe: CAT I 500 Vpk, CAT II 400 Vpk
5 Vrms with 50 Ω input
Offset Range
54621A/D, 54622A/D, 54624A:
± 5 V on ranges <10 mV/div; ± 25 V on ranges 10 mV/div to 199 mV/div; ± 100 V on ranges ≥200 mV/div
54641A/D, 54642A/D:
± 5 V on ranges <10 mV/div; ± 20 V on ranges 10 mV/div to 200 mV/div; ± 75 V on ranges ꢁ200 mV/div
Dynamic Range
Input Resistance
Lesser of ± 8 div or ± 32 V from center screen
54621A/D, 54622A/D, 54624A: 1 MΩ ± 1ꢂ
54641A/D, 54642A/D: 1 MΩ ± 1ꢂ, 50 Ω selectable
Input Capacitance
Coupling
54621A/D, 54622A/D, 54624A: ~ 14 pF
54641A/D, 54642A/D: ~ 13 pF
54621A/D, 54622A/D, 54624A: ac, dc, ground
54641A/D, 54642A/D: ac, dc
BW Limit
54621A/D, 54622A/D, 54624A: ~ 20 MHz selectable
54641A/D, 54642A/D: ~ 25 MHz selectable
Channel-to-Channel Isolation
(with channels at same V/div)
54621A/D, 54622A/D, 54624A: dc to 20 MHz ꢁ 40 dB; 20 MHz to max bandwidth ꢁ 30 dB
54641A/D, 54642A/D:DC to max bandwidth ꢁ40 dB
Probes
54621A/D, 54622A/D, 54624A: 10:1 10074C shipped standard for each analog channel
54641A/D, 54642A/D: 10:1 10073C shipped standard for each analog channel
Probe ID (Agilent/HP and
Tek compatible)
Auto probe sense
± 2 kV
ESD Tolerance
Noise Peak-to-Peak
54621A/D, 54622A/D, 54624A: 2ꢂ full scale or 1 mV, whichever is greater
54641A/D, 54642A/D: 3ꢂ full scale or 3 mV, whichever is greater
Common Mode Rejection Ratio 20 dB @ 50 MHz
1,2
DC Vertical Gain Accuracy*
DC Vertical Offset Accuracy
± 2.0ꢂ full scale
54621A/D, 54622A/D, 54624A:
<200 mV/div: ± 0.1 div ± 1.0 mV ± 0.5ꢂ offset value; ≥200 mV/div: ± 0.1 div ± 1.0 mV ± 1.5ꢂ offset value
54641A/D, 54642A/D:
≤200 mV/div: ± 0.1 div ± 2.0 mV ± 0.5ꢂ offset value; ꢁ200 mV/div: ± 0.1 div ± 2.0 mV ± 1.5ꢂ offset value
1,2
Single Cursor Accuracy
± ±DC Vertical Gain Accuracy + DC Vertical Offset Accuracy + 0.2ꢂ full scale (~1/2 LSB) }
54621A/D, 54622A/D, 54624A example: for 50 mV signal, scope set to 10 mV/div (80 mV full scale), 5 mV offset,
accuracy = ± ±2.0ꢂ(80mV) + 0.1 (10 mV) + 1.0 mV + 0.5ꢂ (5 mV) + 0.2ꢂ(80 mV)} = ± 3.78 mV
1,2
Dual Cursor Accuracy*
± ±DC Vertical Gain Accuracy + 0.4ꢂ full scale (~1 LSB)}
Example: for 50 mV signal, scope set to 10 mV/div (80 mV full scale), 5 mV offset,
accuracy = ± ±2.0ꢂ(80 mV) + 0.4ꢂ(80 mV)} = ± 1.92 mV
*
1
Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-minute warm-up period and ± 10 ꢀC from firmware calibration temperature.
For 54621A, 54621D, 54622A, 54622D, and 54624A, 1 mV/div is a magnification of 2 mV/div setting. For vertical accuracy calculations, use full scale of 16 mV for
1 mV/div sensitivity setting.
2
For 54641A, 54641D, 54642A, and 54642D, 2 mV/div is a magnification of 4 mV/div setting. For vertical accuracy calculations, use full scale of 32 mV for 2 mV/div sensitivity setting.
14
HP [ HEWLETT-PACKARD ]
