HP 54645A

With the addition of the new HP 54645A Oscilloscope to your lab, you will be able to view easily the full range of signals in your circuit, from its highest speed digital operation to its slowest analog transducer input. The HP 54645A's 100-MHz bandwidth, 2ns/div sweep speed and 200 MSa/s acquisition, coupled with its unique high-speed display, give you the view of your critical digital control signals needed to ensure proper circuit operation. In addition, the HP 54645A's very deep memory and 50-second/div sweep speed allow you to capture transducer and analog signals at a higher sampling speed at long timebase settings.

Often in mixed-signal systems the events of interest either take place over a long time span or they are widely separated from the trigger event. With 1 million samples per channel, HP's MegaZoom technology captures long time spans with a high sampling speed, allowing you to see the fine detail needed to solve elusive mixed-signal problems.

Features:

• Dual-channel 100-MHz scope with 200 MSa/s
• 1 MB of memory per channel
• HP MegaZoom technology allows deep memory capture and a responsive display
• Simple, easy-to-use controls
• Glitch triggering

Specifications:

Vertical system, Scope channels 1 & 2

Bandwidth (3dB) dc to 100 MHz
ac coupled 1.5 Hz to 100 MHz 
Risetime (calculated) < 3.5 ns
Dynamic input range ± 8 div from center screen
Math Functions         Channel 1 + or - channel 2  
Input R+C       1 Mohm, ~13 pF
Maximum input 400V (dc + peak ac) 
Range 1mV/div to 5V/div 

Accuracy ± 1.5%
Vernier Accuracy ± 3%
Single Cursor Accuracy Vertical accuracy ±1.2% of full scale,
± 0.5% of position value  
Dual Cursor Accuracy Vertical gain ± 0.4%  of full scale 
Input BW limit Approx. 20 MHz 
Coupling ac, dc, GND
Channel isolation dc to 20 MHz >40 dB (with channels at same v/div)
20 MHz to 100 MHz  >30 dB 
Inversion Channel Channel 1 + Channel 2

Horizontal system

Sweep speeds 50 s/div to 2 ns/div (main and delayed)
Accuracy ± 0.01%
Vernier Accuracy ± 0.05% 
Horizontal resolution 40 ps
Cursor Accuracy                  ±0.01% ± 0.2% of full scale ± 200 ps
(delta t+1/delta t)
Delay jitter 10 ppm

Delay range

Pre-trigger (negative delay): = 10 div
Post-trigger (from trigger point to end of sweep): at least 2,560 div or 50 ms,
not to exceed 100 s

Delayed sweep

Delayed Sweep expansion: Delayed timebase can be as
fast as 2 nsec/div but must be at least 200X the main timebase.

HP MegaZoom technology (Post acquisition Pan and Zoom):

The time/div and delay controls allow any part of the acquired waveform
display to be expanded to the full extent of the memory available.

Trigger system

Source CH1, CH2, Line, External
Slope Rising or falling
Modes Auto, Autolevel, Normal, Single + TV
Holdoff Adjustable from 200 ns to ~ 13 s
Glitch Less than, greater than, or within specified range
Glitch Source     CH 1, CH 2 or External
Glitch Polarity  Rising or falling
Glitch Minimum setting  8 ns pulse width 
TV Source CH 1 or CH 2
TV line and field  0.5 divisions of composite synch
required for stable display
Coupling dc, ac, HF reject, LF reject, noise reject 
(HF and LF -3dB ~ 50 kHz) 

External trigger

Range ±18V
Sensitivity dc to 25 MHz: <50 mV
dc to 100 MHz: <100mV
Coupling dc HF reject and noise reject
Input R+C       1 Mohm, ~ 13 pf
Maximum input voltage 400V (dc+peak ac)

X-Y Operation

Bandwidth X + Y same as vertical system
Phase difference ±3° at 100kHz
Z-Blanking TTL high blanks

Acquisition system

Maximum sample rate 200 MSa/s on each channel
Vertical resolution 8 bits
Single shot bandwidth          50 MHz 
Maximum memory depth 1 Megasamples per channel
Peak detection  5 nsec
Maximum display rate 3 million samples per second
Average Selectable as 8, 64, and 256 averages
Roll mode At sweep speeds of 200 ms/div and slower, waveform data
moves across the display from right to left with no dead time. 

Display system

Display 7 inch raster CRT
Resolution 255 vertical by 500 horizontal points
Controls Front-panel intensity
Vectors Selectable on/off 
Graticle 8 X10 grid or frame

Advanced functions

Automatic measurements          Measurements continuously updated
Voltage V AVG (dc), V RMS, V PP, Vtop, Vbase, V MIN, & V MAX
Time Frequency, Period,  + Width,  - Width,
Duty Cycle, Rise Time & Fall Time. 
Cursors Manually or automatically placed

Setup functions

Autoscale Sets the vertical and horizontal deflection and the trigger level
Save/recall (non-volatile) 10 front-panel set-ups

Trace (pixel) memory 2 volatile

General Specifications

EMI Meets FTZ 1046 class B  
Mil-T-28800D Meets requirements in accordance with paragraph
3.8.3, EMI  Type III, and MIL-STD-461C
as modified by table XII.
CE01,CE03 Full limits
CS01,CS02,CS06         Full limits
REO1 15 dB relaxation to 20 kHz;
exceptioned from 20 kHz to 50 kHz 
REO2 (with Opt 002) Full limits of class A1c and A1f
REO2 (without Opt 002)  10 dB relaxation from 14 kHz to 100 kHz
RSO2 Exceptioned 
RS03 (with Opt 001) Slight trace shift from 80 Mhz to 200 mHz

Size 32.26 x 17.27 x 32.25cm  
12.7W x 6.8H x 12.5D in. (excluding handle)
Weight 6.35 Kgs (~ 14 lbs) 
Max Power 220 Vac
Line Voltage Range 100-240 Vac
Line voltage selection         Automatic
Frequency 45-440 Hz

Environmental characteristics

This instrument meets the requirements of MIL-T-28800D for Type III,
Class 3 Style D equipment as described below

Shock: operating: 30g, 1/2 sine,
11 ms duration, 3 shocks per axis along major axis. Total of 18 shocks.

Vibration operation: 15 minutes along each of 3 major axes;
0.64 mm (0.025 inch) p-p displacement, 10 Hz to 55 Hz in one-minute cycles.
Held for 10 minutes at 55 Hz (4 g at 55 Hz).

Altitude: operating to 4500 M (15,000 ft), non-operating to 15,000 M (50,000 ft) 

Humidity: operating: 95% RH at 40° C for 24 hrs.,
(non-operating: 90% RH at 65° C, 24 hrs)
Ambient temperature: operating: -10° C to 55° C,
(Non-operating: -51° C to +71° C)

Safety: CSA Certification , IEC 1010