HP 70700A Digitizer Module

The HP 70700A digitizer adds precision digitizing capability to the modular measurement system. This 1-slot module has many features you may expect to find in a 20-M sample/s, 10-bit programmable waveform recorder, plus a full set of oscilloscope features, powerful analysis functions, and memory size of 256K samples.

Integrated into an HP 70000 modular spectrum analyzer, the digitizer module improves the system's ability to analyze signals in the time domain. The high sampling rate allows recovery of fast pulses, limited only by the bandwidth of the spectrum analyzer signal path. The digitizer module also functions as a self-contained instrument with data-acquisition and waveform analysis capabilities. This flexible module can be used as a precision digitizing oscilloscope, a transient analyzer, or a programmable waveform recorder.

In multichannel applications, up to eight HP 70700A modules can be operated synchronously without loss in performance. The HP 70700A provides a powerful transient analysis feature called Random Event Capture (REC). With this feature, randomly occurring events are stored sequentially in segmented memory as they happen, complete with pre-trigger data and timing information. REC makes efficient use of memory by eliminating dead time from the stored trace. This allows analysis of infrequent transient waveforms. REC requires no re-arm time, so multiple transients are captured with no loss of data.

[ Features ]

1-slot MMS module
20 M sample/s, 10 bits
256K memory
Waveform recorder and oscilloscope features
Faster spectrum analyzer sweeps
Menu-driven interface
Pre-trigger data

[ Specifications ]

Digitizing Performance

Maximum Sampling Rate:			20 M Sample/s
Available Sampling Rates Using Internal Clock:
					(2.0 x 10e7)/n Sa/s 
					where n = 1, 2, 3,...2e32, ą1%
Amplitude Resolution:			10 bits
Effective Number of Bits:		7.5 @ 1 MHz; 7.0 @ 10 MHz
Harmonic and Spurious Distortion:	50 dBc at 1 MHz; 45 dBc at 10 MHz
Gain Accuracy:				ą1%
Offset Accuracy:			ą1%

Bandwidth

Single-shot Bandwidth:			10 MHz
Analog (3 dB) Bandwidth:		>35MHz

Analog Input

Input Coupling:				Switchable:ac 1 M-ohm, dc 1 M-ohm, DC 	
					50-ohm (nominal); all with 60 pF 
					capacitance (nominal)
Input Voltage Ranges (full-scale):	ą0.3 V, ą1 V, ą3 V, ą10 V (nominal)

Data Acquisition

Waveform Memory:			262, 144 (256K) 10-bit words
Data Transfer Rate:			60 KB/s (nominal; depends on 
					speed of receiving instrument)

Special Features:
  Random Event Capture
  Built-in ocsilloscope
  Built-in analysis functions
  Interpolation of sparsely sampled waveforms
  Variable pre- and post-trigger data
  Adjustable fast Fourier transform (FFT)

Programmability:  		Fully programmable via HP-IB interface

[ Ordering ]

HP 70700A Digitizer Module Opt 098 Controller Board Upgrade Kit (required only if digitizer is being added to an existing system with HP 70900A/B local oscillator module firmware version 860203 or earlier) Opt 099 Firmware Upgrade Kit (not necessary if Ordering Opt 098: required only if digitizer is being added to an existing system with HP 70900A local oscillator module firmware version 861015) Opt 910 Extra User Manuals Opt 915 Extra Technical Reference Manual Opt 1BN Certificate of Calibration Opt 1BP Certificate of Calibration and Data

HP 10001A Probe 10:1 (10 Mohm) HP 10002A Probe 50:1 (9 Mohm) HP 10007B Probe 1:1 (1 Mohm) HP 10026A Probe 1:1 (50 Ohm)

[ Assistance ]

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[ Related ]

Related product families available online:

MMS Signal Analyzers

Modulation Measurement Systems Associated Equipment Required