Specifications

HP 54645A/D Oscilloscopes
Number of Channels 2 Analog—labeled 1 and 2 on HP 54645A,
A1 and A2 on HP 54645D
Probes 10074A
Range 1 mV/div - 5 V/div
Vernier calibrated ± 3%
Position (offset) range ± 8 divisions minimum
± 2V on ranges < 200 mV/div
± 40V on ranges > 200 mV/div
Dynamic Input Range Lesser of ± 8 div or ± 32 V
DC Vertical Gain Accuracy
1, 2, 5 sequences
Vernier
± 1.5% of full scale
± 3% of full scale
DC Vertical Offset Accuracy
serial prefix < US3707
serial prefix ≥ US3707
± 1% of full scale ± 0.5% of position value
± 1% of full scale ± 0.5% of position value (≥ 10 mV/div)
± 2% of full scale ± 0.5% of position value (< 10 mV/div)
Single-Cursor Accuracy DC vertical gain accuracy + DC vertical offset
accuracy ± 1/2 LSB (LSB=0.4% of full scale)
Dual-Cursor Accuracy DC vertical gain accuracy ± 1 LSB
Bandwidth (3dB)
Repetitive
Single shot
100 MHz @ ≥ 10 mV/div (75 MHz @ < 10 mV/div)
50 MHz
Bandwidth limit (~ 20 MHz)
Rise Time (calculated) ~3.5 ns @ > 10 mV/div
~3.9 - 4.6 ns @ < 10 mV/div
Coupling AC, DC, GND
AC Coupling Corner Frequency ~1.5 Hz
Input Impedance 1 MΩ, ± 1%, ~13 pF
Maximum Input 400 V (DC + peak AC)
Probe ID (HP & Tek compatible) 1X, 10X, 20X, 100X
ESD Tolerance ± 2 kV
Channel Isolation (with channels at
the same v/div)
DC to 20 MHz > 40 dB
20 MHz to 100 MHz > 30 dB
Noise Peak-to-Peak ≤3Q levels or 1 mV, whichever is greater
Common Mode Rejection Ratio 20 dB @ 50 MHz
XY Bandwidth
Bandwidth
Phase error @ 1 MHz
100 MHz
1.8 degrees
Performance Characteristics
HP 54645A/D Oscilloscopes
9-3