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11801B

Digital Sampling Oscilloscope

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Features & Benefits

  • DC to 50-GHz Bandwidth
  • 7-ps Rise Time
  • 8 Channels, Expandable to 136 (with SM-11)
  • 10-fs Sampling Interval (0.01 ps)
  • Modular Architecture
  • 200-kS/s Sample Rate
  • Dual Time Base
  • Nonvolatile Waveform and Setting Storage
  • FFT
  • Predefined Telecom Masks (Opt. 1T)
  • TDR
  • Automatic Measurements:
    • Jitter/Noise, Statistical
    • Histograms, Mask Testing
    • Pulse with Statistics
  • Programmable for ATE Applications
  • Comprehensive Waveform Processing
  • Color Display

Applications

  • Semiconductor Testing
  • TDR Characterization of Circuit Boards, IC Packages, and Cables

Sampling Heads

SD-14 - 2.5-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-30 - 40-GHz single-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-46 - 20-GHz O/E converter (22-ps optical pulse response FWHM)

SD-51 - 20-GHz trigger head

Characteristics

Vertical System*1

Rise Time/Bandwidth - Determined by the sampling head used.

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.

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

Horizontal System

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

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 eight 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 Sample Rate - 200 kS/s.

Trigger System*2

Trigger Bandwidth - 3 GHz.

Trigger Sensitivity -

DC, 1X ≤3 GHz: 100 mV.

AC, 1X 300 kHz to 3 GHz: 100 mV.

DC, 10X ≤3 GHz: 1 V.

AC, 10X 300 kHz to 3 GHz: 1 V.

Delay Jitter - 1.3 ps + 4 ppm of a position typical. 2.0 ps + 5 ppm of position maximum (RMS).

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 (+15 V, 5 VRMS maximum with 10X).

Trigger Holdoff - 5 µs to 2.5 seconds.

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

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.

*3 Available only in statistical measurement mode.

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-inch 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.

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 to +50 °C.

Nonoperating: -40 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, subpart J, Class A; VDE 0871/6.78 Class B.

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

Time Base Accuracy - Typical Specifications

Range*4, 5 = Interval ≥ 1 ns - Base: 4 ps + Interval Specification: 0.004%*4 Interval + Position Specification 0.0004%*4 Position

Range*4, 5 = Interval = 100 ps - Base: 2.5 ps + Position Specification: 0.0004%*4 Position

Range*4, 5 = Interval ≤ 10 ps - Base: 1 ps + Position Specification: 0.0004%*4 Position

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

*5 For other intervals not listed above, linearly interpolate the cardinal points.

Physical Characteristics

11801B Cabinet -

Width: 448 mm (17.6 in.)

Height: 238 mm (9.4 in.)

Depth: 599 mm (23.6 in.)

Net Weight: 22.3 kg (49 lbs.)

Shipping Weight: 25.9 kg (57 lbs.)

SM-11 Cabinet -

Width: 448 mm (17.6 in.)

Height: 238 mm (9.4 in.)

Depth: 558 mm (22.0 in.)

Net Weight: 20.0 kg (44 lbs.)

Shipping Weight: 23.6 kg (52 lbs.)

11801B Rackmount -

Width: 483 mm (19.0 in.)

Height: 222 mm (8.8 in.)

Depth: 550 mm (21.6 in.)

Net Weight: 23.2 kg (51 lbs.)

Shipping Weight: 26.8 kg (59 lbs.)

SM-11 Rackmount -

Width: 483 mm (19.0 in.)

Height: 222 mm (8.8 in.)

Depth: 550 mm (21.6 in.)

Net Weight: 20.9 kg (46 lbs.)

Shipping Weight: 24.5 kg (54 lbs.)