Agilent Technologies 54621D manual General Information, Vertical System Analog Channels continued

General Information

Vertical System: Analog Channels (continued)

*Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-minute warm-up period and ±10 °C from firmware calibration temperature.

Vertical System: Analog Channels (continued)

ESD Tolerance	±2 kV
Noise Peak-to-Peak	2% full scale or 1 mV, whichever is greater
Common Mode Rejection Ratio	20 dB @ 50 MHz
DC Vertical Gain Accuracy*1	±2.0% full scale
DC Vertical Offset Accuracy	< 200 mV/div: ±0.1 div ±1.0 mV ±0.5% offset
	≥200 mV/div: ±0.1 div ±1.0 mV ±1.5% offset value
Single Cursor Accuracy1	±{DC Vertical Gain Accuracy + DC Vertical Offset
	Accuracy + 0.2% full scale (~1/2 LSB) }
	Example: For 50 mV signal, scope set to 10 mV/div (80 mV full scale), 5 mV offset,
	accuracy = ±{2.0%(80mV) + 0.1 (10 mV) + 1.0 mV + 0.5% (5 mV) + 0.2%(80 mV)} = ± 3.78 mV
Dual Cursor Accuracy*1	±{DC Vertical Gain Accuracy + 0.4% full scale (~1 LSB)}
	Example: For 50 mV signal, scope set to 10 mV/div (80 mV full scale), 5 mV offset,
	accuracy = ±{2.0%(80 mV) + 0.4%(80 mV)} = ±1.92 mV

11 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.

Vertical System: Digital Channels (54621D and 54622D only)

Number of Channels	16 Digital – labeled D15 – D0
Threshold Groupings	Pod 1: D7 - D0
	Pod 2: D15 - D8
Threshold Selections	TTL, CMOS, ECL, user-definable (selectable by pod)
User-Defined Threshold Range	±8.0 V in 10 mV increments
Maximum Input	±40 V peak CAT I
Voltage
Threshold Accuracy*	±(100 mV + 3% of threshold setting)
Input Dynamic Range	±10 V about threshold
Minimum Input Voltage Swing	500 mV peak-to-peak
Input Capacitance	~ 8 pF
Input Resistance	100 kΩ ±2% at probe tip
Channel-to-Channel Skew	2 ns typical, 3 ns maximum

1-11