HP 54720D Four-channel, 8 GSa/s Real-time Modular Oscilloscope Mainframe

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When you only have one chance to make a measurement, the HP 54720D real-time oscilloscope provides the superior bandwidth, sample rate, flatness, and accuracy you need to capture intermittent design problems.

The HP 54720D allows sample rates to 8 GSa/s and a single-shot analog bandwidth of 2-GHz. Each of the four 2 GSa/s A/Ds have 64K of memory allowing 256k points of acquisition at the maximum sample rate.


Available modules include:


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[ Summary ][ Features ][ Specifications ][ Key Literature ][ Ordering ][ Assistance ][ Related ]

Time-Interval Measurement Accuracy Specifications

 
Real Time		ą[(0.2)(sample interval) + 0.007% 
			of delta-time marker reading]

Equivalent Time 	ą(30 ps + 0.007% of delta-time marker reading)
(16 averages)

Typical Channel Characteristics

ADC Input Sources 	
(simultaneous		4 plug-in slots, each having its own 2-GSa/s 
acquisition)		ADC. Acquisition memory is 65,536 points per 
			slot.

Best Accuracy Calibration
			Performing the best accuracy cal on a channel
			just prior to a series of critical measurements
			will ensure the most accurate results. This 
			cal adjusts the channel s gain, offset, and 
			linearity, and requires a specific plug-in to
			stay installed in a specific mainframe slot.

Channel Skew Adjustment
			The time skew between channels can be manually 
			eliminated all the way to the probe tip to
			1-ps resolution.

Probe Calibration	A probe calibration routine automatically 
			computes the offset and attenuation created 
			by the probe attached to the channel input. 

Typical Time Base Characteristics

Time Base Scale (fullscreen is 10 divisions)	
			100 ps/div to 20 s/div 
			(in 1-2-5 or fine steps)

Time Base Position Range (auto sample rate and record length)
			Pretrigger: 0 to 10 s or one fullscreen width,
			whichever is larger. 	
			Posttrigger: 0 to 10 s or one fullscreen width,
			whichever is larger.

Trigger Interpolator Resolution: 1 ps

Time Base Window	
			Scale: 1 ps/div to the main time base scale 
			factor
			Position: The window must always stay in the 
			time window defined by the main sweep.

Typical Triggering Characteristics

Sources	
			All four input plug-in slots can be used for 
			triggering. See plug-in specifications for 
			more details.

Edge Slope		Positive/negative

Holdoff Range 		60 ns to 320 ms

Pattern Trigger		A pattern can be specified using any channel 
			or external trigger input (up to four bits 
			wide). Each of the inputs can be specified 
			as high, low, or don t care with respect to 
			the trigger level setting for that source. 
			Trigger occurs when that pattern is entered 
			or exited.

Glitch Trigger		This mode makes it easy to look for glitches 
			greater than or less than specified width on 
			a single source. You can distinguish glitches
			down to 3 ns ą1 ns in width and can capture 
			glitches as narrow as 500 ps in width.

Time-Qualified		A trigger will occur on the first edge to exit
Pattern Trigger		a pattern only if it meets one of these 3 
			criteria: 1) pattern present <[time]
				  2) pattern present >[time]	
				  3) pattern present in range 
				     >[time1] and <[time2]. 

			The time settings are adjustable from 20 ns 
			to 160 ms [ą(3% + 2 ns)] with 10 ns resolu-
			tion. Filter recovery time is <=12 ns.

State Trigger		A pattern is specified on any three ofthe 
			four inputs, with the fourth input used as a 
			clock. Trigger occurs on the rising or falling
			edge of the input specified as the clock, and
			when the pattern is present or is not present.
			Setup time for the pattern with respect to 
			the clock is 10 ns or less; hold time is zero.


TV Trigger		Standard TV systems: 525 lines 60 Hz
					     625 lines 50 Hz
					     875 lines 60 Hz
					     User defined

Event-Delayed Trigger	The trigger is qualified by an edge. The 
			delay can be specified as a number of 
			occurrences of a rising or falling edge of 
			any of the inputs. After the delay, an 
			occurrence of a rising or falling edge of 
			any of the inputs will generate the trigger. 
			The trigger occurrence value is selectable 
			from 1 to 16,000,000. The maximum edge 
			counting rate is 70 MHz. Edges occurring 
			<30 ns after the qualifying edge may not 
			be detected.

Time-Delayed Trigger 	The trigger is qualified by an edge.The 
			delay is selectable from 30 ns to 160 ms. 
			After the delay, an occurrence of a rising 
			or falling edge on any one selected input 
			will generate the trigger. 

Functions and Measurements

Functions		Magnify		Invert		Add
			Subtract	Multiply	Divide
			Versus		Integrate	Differentiate
			Min		Max		FFT (mag)
			Histograms	
			Measurement limit testing
			Waveform mask testing
			Color graded display

Measurements		V(ampltd)	V(base)		V(top)
			Preshoot	Overshoot	V p-p
			V(time)		V(min)		V(max)
			V(rms)		V(avg)		V(upper)
			V(middle)	V(lower)	FFT(freq)
			FFT(mag)	FFT(deltafreq)	FFT(deltamag)		
			Duty cycle	Delta time	Period
			Frequency	T(fall)		T(rise)
			T(max)		T(min)		T(volt)
			+ width		- width

Histograms		p-p		median		mean
			std dev		u ± 1 sigma	u ± 2 sigma
			u ± 3 sigma	hits 		peak

Autoscale		Can find repetitive signals:
				> 50 Hz
				< 1/2 max sample rate
 				duty cycle > 1 %
				amplitude> 50 mV p-p
				(HP 54722A > 150 mV p-p)

Display Update and HPIB Throughput

Maximum Display Update Rate: 550 Kpixels/s typical

Maximum HP-IB Transfer Rate: 500 Kbytes/s typical

Throughput		Waveforms/second	Measurements/second
-------------------------------------------------------------------
Measurement					Vpp	   Period
-------------------------------------------------------------------
Front Panel Capture     > 170			> 44       > 39
and Transfer Rate
-------------------------------------------------------------------
HP-IB Capture and	> 50			> 33       > 31
Transfer Rate
-------------------------------------------------------------------

This throughput data was taken in the real-time sampling mode (250
MSa/s) with 512-point records on screen, no measurements, no inter-
polation, fast draw mode, infinite persistence, markers off, math 
off, and one channel acquisition.  Vpp does not require threshold
detection, but Period does.

Effective Bits

Effective Bits	    1 MHz  10 MHz  100 MHz  250 MHz  500 MHz  1 GHz
(HP 54721A System)
-------------------------------------------------------------------
Real Time (4 GSa/s)
with fs/4 filter
interpolation        7.5    7.5     7.2      6.7      6.7      6.2
without fs/4 filter
interpolation        7.0    7.0     6.6      6.1      5.9      5.3
-------------------------------------------------------------------
Digital Bandwidth    
Limit (fs/20 FIR     8.0    7.9     8.2      7.8       -        -
Filter)
-------------------------------------------------------------------

Typical effective bits of resolution describes the dynamic perfor-
mance of an ADC sine wave curve fit test.  The inputs used are 90%
of full scale amplitude sine waves.

FFT

Update rate for 1024 point record is 70 ms.  Magnitude accuracy 
0.26 db (3%) near dc to -3 db at max bandwidth.

Environmental Characteristics

Temperature	Operating	+10° C to +40° C
		Nonoperating	-40° C to +70° C

Humidity	Operating	Up to 95% relative humidity
				(noncondensing) at +40° C
		Nonoperating	Up to 90% relative humidity
				at +65° C

Altitude	Operating	Up to 4,600 meters (15,000 feet)
		Nonoperating    Up to 15,300 meters (50,000 feet)

Voltage		90 to 132 or 198 to 264 VAC, 48 to 66 Hz

Power		1200 VA; 650 W

Weight		Net		26.4 kg (58 lbs)
		Shipping	33.6 kg (74 lbs)


[ Summary ][ Features ][ Specifications ][ Key Literature ][ Ordering ][ Assistance ][ Related ]

HP 54720D       Four-channel, 8-GSa/s real-time modular oscilloscope mainframe

   Opt 002      Training kit including a PC board, a demo guide,
	        and a power supply (HP P/N 54720-68701 + 9100-4503 USA only)

   Opt 907      Rackmount kit (handles only) (HP P/N 54710-68703) includes long screws

   Opt 908      Rackmount kit (ears only) (HP P/N 54710-68704) includes special long screws

   Opt 909      Rackmount kit with handles (HP P/N 54710-68705) includes long screws

   Opt 0B1      One additional User s and Programmer s Book Set (English only)

Plug-Ins

HP 54711A	50-W attenuator plug-in with external trigger
HP 54712A	50-W amplifier plug-in with internal trigger
HP 54713B	50-W/1-MW, amplifier plug-in with internal trigger
HP 54714A	2-channel plug-in
HP 54715A	Single channel differential probe
HP 54717A	cal plug-in (for yearly mainframe calibration)
HP 54721A	2-slot amplifier plug-in (4 GSa/s sample rate)
HP 54722A	4-slot attenuator plug-in (8 GSa/s sample rate)
HP 54700A	filler panel

Options Available for Each Plug-in:

   Opt 090 	Delete probe (HP 54713B plug-in only)
   Opt 0B1 	One additional User s and Programmer s Book Set (English only)
   Opt 1AK 	HP 54714A  & 54722A delete media option

Support Options

These support options are available at time of purchase. Yearly
contracts can be purchased through your local service center. Each
option applies to one specific model and serial number.

      +W30	Three years of return-to-HP service.

      +W32	Three years of HP Calibration service at HP service center.

   Opt 1BN	Mil-std calibration. Product calibration certificate in
		compliance with MIL-STD-45662A.

   Opt 1BP	Mil-std cal with data report.  Product calibration
		certificate and performance test data report in compliance
		with MIL-STD-45662A.

Probes and Probing Accessories

HP 54701A 2.5-GHz active probe

	Option 001 	Add APC 3.5(f) bulkhead to N-type(f) adapter
			to use with the HP 54120
	Option 0B1	One additional User and Service guide
			(English only)

HP 1141A Differential Probe
HP 1142A Probe Control and Power Module
HP 1143A Probe Power Supply

	Option 001 	One 1.5 meter probe power cable extension cord
			(HP P/N 01143-61602)
	Option 0B1 	One additional User and Service Guide
			(English only)

HP 54006A 6-GHz passive probe
HP 10430A 500-MHz, 6.5-pF passive probe (1 m)
HP 10441A 500-MHz, 9-pF passive probe (2 m)
HP 1141A 200-MHz differential probe (Order HP 1142A also)
HP 1142A probe power supply
HP 1137A 1000:1 high-voltage divider probe (500 MW, 3 pF, 1-MHz bandwidth)
HP 1133A TV/video sync pod
HP 54300A 16-to-2 probe multiplexer
HP 54002A 50 W input pod for HP 54300A

HP-IB Cables

HP 10833A 1 m cable
HP 10833B 2 m cable
HP 10833C 4 m cable
HP 10833D 0.5 m cable

Centronics Cables

HP 13242G 25-pin (m)  to 25-pin (m) Centronics cable (5 m)
HP 92284A 25-pin (m) to 36-pin (m) Centronics cable (2 m)
HP 92219Z 25-pin (m) to 15-pin (m) Centronics cable (1 m)

Rack Mounting Hardware

Support rail kit for all HP racks (HP 12679B)
Standard slide kit, nontilt (HP P/N 1494-0059)
Standard slide kit, tilting (HP P/N 1494-0063)
Slide end brackets for non-HP racks (HP P/N 1494-0061)
New slide cover required for slides (1 each) (HP P/N 5060-9948)

Testmobile

HP 1181A system testmobile
HP 35181A top-mounted printer stand for HP 1181A
HP 35181C 3.5-inch drawer for HP 1181A
HP 35181D Work Surface


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Page Updated: Wednesday January 14 23:52:27 UTC 1998