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Digital Sampling Oscilloscope

11801C

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Features & Benefits

11801C
  • DC To 50-Ghz Bandwidth
  • 7-ps Rise Time
  • Eight Channels, Expandable to 136 (with SM-11 multichannel units)
  • High Resolution and Measurement Repeatability
  • 10-Femtosecond Sampling Interval (0.01 ps)
  • Modular Architecture
  • Dual-Timebase Allows Multiple Windows
  • FFT
  • Predefined Telecom Masks
  • True Dual-Step Differential TDR
  • Fully Automatic Jitter and Noise Measurements
  • Automatic Statistical Measurements, Histograms, and Mask Testing
  • Automatic Pulse Measurements with Statistics
  • Comprehensive Waveform Processing
  • Complete Programmability for ATE Applications
  • Color Display with Color Grading

Applications

  • Semiconductor Test
  • TDR Characterization
  • High-Speed Digital
  • Data Communication

The 11801C Digital Sampling Oscilloscope

The 11801C Digital Sampling Oscilloscope offers the widest range of on-board measurement and waveform processing capabilities of any multi-Gigahertz scope. With excellent measurement repeatability, exceptional vertical resolution, and fast display update rate, the 11801C is a powerful measurement tool for semiconductor testing, TDR characterization of circuit boards, IC packages and cables, and high-speed digital data communications.

Modularity Meets Your Needs Now and in the Future

The modular microprocessor-based architecture of the 11801C not only allows you to select the right configuration for your application, but also allows expandability to meet your future measurement needs. The 11801C accepts up to 4 dual-channel sampling heads and can be expanded through the SM-11 Multichannel Units to 136 channels. There are currently nine sampling heads to choose from:

SD-14 - 3-GHz high-impedance (100 kilohm/0.475 pF) dual-channel probe sampler

SD-20 - 20-GHz single-channel loop-through head

SD-22 - 12.5-GHz dual-channel low-noise head

SD-24 - 20-GHz dual-channel TDR/sampling head

SD-26 - 20-GHz dual-channel sampling head

SD-32 - 50-GHz, single-channel sampling head

SD-42 - 6.4-GHz O/E converter (55-ps optical pulse response FWHM)

SD-44 - 15-GHz O/E converter

SD-51 - 20-GHz trigger head

Characteristics

Vertical Systems

Rise Time/Bandwidth - Determined by the sampling head used*1

Vertical Resolution - 8-bit full screen (78 µV LSB at 2 mV/div deflection factor)

Amplifier Gain Accuracy - ±1% of all settings

Deflection Factors - 2 to 255 mV/div in 1 mV/div increments

Offset Range - ±2 V

Horizontal System

Main and Window Time Base - 1 ps/div to 5 ms/div, settable in 1-2-5 sequence or in 1-ps increments.

Time Interval Accuracy -

8 ps + 0.01% × (interval) + 0.001% × (position), guaranteed.

4 ps + 0.004% × (interval) + 0.0004% × (position), typical, where interval ≥1 ns.

2.5 ps + 0.0004% × (position), typical, where interval = 100 ps.

1 ps + 0.0004% × (position), typical, where intervals <10 ps.

Notes:

1) For intervals <100 ps, the above holds for time/div ≤20 ps/div.

2) For other intervals not listed above, linearity interpolate the cardinal points.

Record Length - 512, 1024, 2048, 4096, and 5120 samples.

Windows - Any number of window records may be placed on any number of main records, up to a maximum of 8 displayed traces. All window records have the same duration, but may be independently positioned on any main record. Windows may be set to automatically track a moving edge on the main record.

Maximum Sampling Rate - 200 ks/s.

Trigger System*2

Trigger Bandwidth - Direct 4 GHz typical, Prescaled 12.5 GHz typical

Trigger Sensitivity -

Direct DC to 4 GHz: 50 mV typical

Prescaled 2 to 10 GHz: 500 mV

10 to 12.5 GHz: 800 mV typical

Delay Jitter -

1.1 ps + 4 ppm of a position typical

2.0 ps + 5 ppm of position maximum (RMS)

Metastability -

Raw <0.005 ppm at 2.488 GHz with 200-mV input trigger voltage, typical

Enhanced is theoretically zero

Internal Clock - 100 kHz (drives TDR, Internal Clock Output, and Calibrator)

Trigger Level Range - ±1.0 V (±10 V with 10X trigger attenuator activated)

Trigger Input Range - ±1.5 V (±1.5 V, 5 VRMS maximum with 10X)

Trigger Holdoff - 5 µs to 2.5 s

Measurement System

Waveform Processing Functions - Add, subtract, multiply, divide, absolute, average, differentiate, envelope, exponent, integrate, natural log, log, signum, square root, smoothing, and filter.

Measurement Set - Max, min, mid, pk-pk, mean, RMS, amplitude, extinction ratio, overshoot, undershoot, noise*3, rise, fall, spectral magnitude, spectral frequency, THD, SNR, frequency, period, prop delay, cross, width, phase, duty cycle, jitter*3, area+, area-, and energy. Measurements are constantly updated; mean and standard deviation available on all measurements.

Measurement Parameters - (Proximal, mesial, distal, and start/stop levels): May be set to absolute levels.

Cursors - Paired or split dots, vertical bars, and horizontal bars.

TDR System (SD-24 Only)

Combined TDR/Acquisition Reflected Rise Time - 35 ps or less

TDR Step Amplitude - Adjustable to ±250 mV (polarity of either step may be inverted)

Time-Coincidence Between TDR Steps - Adjustable to less than 1 ps

Source Resistance - 50 ±0.5 ohm

Typical Aberrations (at ±250 mV Amplitude) -

10 ns to 20 ps before step: ±3% or less

Less than 300 ps after step: +10%, -5% or less

300 ps to 5 ns after step: ±3% or less; elsewhere: ±1% or less

CRT and Display Features

CRT - 9 in. diagonal, magnetic deflection, vertical raster scan orientation. Color.

Colors - Eight-color default color set included; or, colors are user-selectable from palette of 262, 144 colors.

Video Resolution - 552 horizontal by 704 vertical displayed pixels.

*1 Vertical system specifications of 11801C with SD-14 nonapplicable. See 11800 Series Sampling Head specifications.

*2 11801C has external trigger only; requires 23 ns pretrigger or DL-11 Delay Lines to view trigger point (45.5 ns with Option 1M).

*3 Available only in statistical measurement mode.

Power Requirements

Line-Voltage Ranges - 90 to 132 VRMS, 180 to 250 VRMS

Line Frequency - 48 to 440 Hz

Maximum Power Consumption - 214 W

Environmental and Safety

Temperature -

Operating: 0 °C to +50 °C

Nonoperating: -40 °C to +75 °C

Humidity -

Operating and nonoperating: up to 95% relative humidity, up to 50 °C. Per Mil-T-28800E, Type III, Class 5

Altitude, Vibration, Shock Nonoperating, Bench Handling - Meets MIL-T-28800E, Type III, Class 5

Electromagnetic Compatibility (with sampling heads or optional blank panels installed in all sampling-head compartments) - Meets the requirements of: MIL-STD-461B; FCC Part 15, sub-part J, Class A; VDE 0871/6.78 Class B

Safety - Listed UL 1244, CSA Bulletin 556B September 1973

Physical Characteristics

 

 

Cabinet

   

Rackmount

   

 

Dimensions

mm

in.

mm

in.

11801C

Width

448

17.6

483

19.0

   

Height

238

9.4

222

8.8

   

Depth

599

23.6

550

21.6

SM-11

Width

448

17.6

483

19.0

   

Height

238

9.4

222

8.8

   

Depth

558

22.0

550

21.6

 

Weights

kg

lbs.

kg

lbs.

11801C

Net

22.3

49.0

23.2

51.0

   

Shipping

25.9

57.0

26.8

59.0

SM-11

Net

20.0

44.0

20.9

46.0

   

Shipping

23.6

52.0

24.5

54.0