Tektronix MSO22, MSO24 Specification and Performance Verification
2 Series Mixed Signal Oscilloscopes
MSO22 and MSO24
Specifications and Performance Verification
Warning: The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified
to do so. Refer to all safety summaries prior to performing service.
Revision B. February, 2023.
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P.O. Box 500
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USA
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Table of Contents
Table of Contents
Important safety information..........................................................................................................................................................4
General safety summary........................................................................................................................................................4
To avoid fire or personal injury........................................................................................................................................4
Probes and test leads..................................................................................................................................................... 6
Service safety summary.........................................................................................................................................................7
Terms in this manual.............................................................................................................................................................. 7
Terms on the product............................................................................................................................................................. 7
Symbols on the product......................................................................................................................................................... 8
Specifications................................................................................................................................................................................ 9
Analog signal acquisition system......................................................................................................................................... 10
Analog bandwidth..........................................................................................................................................................11
Skew and delay............................................................................................................................................................ 12
Timebase system..........................................................................................................................................................12
Triggering system.................................................................................................................................................................13
Arbitrary function generator................................................................................................................................................. 14
Sine waveform.............................................................................................................................................................. 15
Square and pulse waveform......................................................................................................................................... 15
Ramp and triangle waveform........................................................................................................................................16
Digital channel acquisition................................................................................................................................................... 16
Digital pattern generator...................................................................................................................................................... 17
Processor system................................................................................................................................................................ 17
Display system.....................................................................................................................................................................17
Interfaces, input, and output ports....................................................................................................................................... 18
Video signal output....................................................................................................................................................... 18
Probe compensator output........................................................................................................................................... 18
Auxiliary output (Aux out)..............................................................................................................................................18
Data handling characteristics...............................................................................................................................................18
Power supply system........................................................................................................................................................... 19
Safety characteristics...........................................................................................................................................................19
Mechanical characteristics...................................................................................................................................................19
Electromagnetic compatibility.............................................................................................................................................. 20
Environmental compliance...................................................................................................................................................22
Environmental characteristics.............................................................................................................................................. 22
Dynamics...................................................................................................................................................................... 22
Performance verification procedures.......................................................................................................................................... 24
Test records......................................................................................................................................................................... 25
Check probe compensation................................................................................................................................................. 29
Check Aux In........................................................................................................................................................................30
Check DC gain accuracy..................................................................................................................................................... 30
Check analog bandwidth......................................................................................................................................................32
Check digital threshold accuracy with 2-MSO option...........................................................................................................34
Check long term sample rate............................................................................................................................................... 36
Check AFG DC offset accuracy........................................................................................................................................... 37
2 Series Mixed Signal Oscilloscopes MSO22 and MSO24 Specifications and Performance Verification 3
Important safety information
Important safety information
This manual contains information and warnings that must be followed by the user for safe operation and to keep the product in a safe
condition.
To safely perform service on this product, see the Service safety summary that follows the General safety summary.
General safety summary
Use the product only as specified. Review the following safety precautions to avoid injury and prevent damage to this product or any
products connected to it. Carefully read all instructions. Retain these instructions for future reference.
This product shall be used in accordance with local and national codes.
For correct and safe operation of the product, it is essential that you follow generally accepted safety procedures in addition to the safety
precautions specified in this manual.
The product is designed to be used by trained personnel only.
Only qualified personnel who are aware of the hazards involved should remove the cover for repair, maintenance, or adjustment.
Before use, always check the product with a known source to be sure it is operating correctly.
This product is not intended for detection of hazardous voltages.
Use personal protective equipment to prevent shock and arc blast injury where hazardous live conductors are exposed.
While using this product, you may need to access other parts of a larger system. Read the safety sections of the other component manuals
for warnings and cautions related to operating the system.
When incorporating this equipment into a system, the safety of that system is the responsibility of the assembler of the system.
To avoid fire or personal injury
Use proper power cord
Use only the power cord specified for this product and certified for the country of use. Do not use the provided power cord for other
products.
Ground the product
This product is grounded through the grounding conductor of the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output terminals of the product, ensure that the product is properly
grounded. Do not disable the power cord grounding connection.
Power disconnect
The power cord disconnects the product from the power source. See instructions for the location. Do not position the equipment so that it is
difficult to operate the power cord; it must remain accessible to the user at all times to allow for quick disconnection if needed.
Use proper AC adapter
Use only the AC adapter specified for this product.
Connect and disconnect properly
Do not connect or disconnect probes or test leads while they are connected to a voltage source.
Use only insulated voltage probes, test leads, and adapters supplied with the product, or indicated by Tektronix to be suitable for the
product.
4
Important safety information
Connect the probe output to the measurement instrument before connecting the probe to the circuit under test. Connect the probe
reference lead to the circuit under test before connecting the probe input. Disconnect the probe input and the probe reference lead from
the circuit under test before disconnecting the probe from the measurement instrument.
De-energize the circuit under test before connecting or disconnecting the current probe.
Observe all terminal ratings
To avoid fire or shock hazard, observe all rating and markings on the product. Consult the product manual for further ratings information
before making connections to the product.
Do not exceed the Measurement Category (CAT) rating and voltage or current rating of the lowest rated individual component of a product,
probe, or accessory. Use caution when using 1:1 test leads because the probe tip voltage is directly transmitted to the product.
Do not apply a potential to any terminal, including the common terminal, that exceeds the maximum rating of that terminal.
Do not float the common terminal above the rated voltage for that terminal.
The measurement terminals on this product are not rated for connection to Category III or IV circuits.
Do not connect a current probe to any wire that carries voltages above the current probe voltage rating.
Do not operate without covers
Do not operate this product with covers or panels removed, or with the case open. Hazardous voltage exposure is possible.
Avoid exposed circuitry
Do not touch exposed connections and components when power is present.
Do not operate with suspected failures
If you suspect that there is damage to this product, have it inspected by qualified service personnel.
Disable the product if it is damaged. Do not use the product if it is damaged or operates incorrectly. If in doubt about safety of the product,
turn it off and disconnect the power cord. Clearly mark the product to prevent its further operation.
Before use, inspect voltage probes, test leads, and accessories for mechanical damage and replace when damaged. Do not use probes or
test leads if they are damaged, if there is exposed metal, or if a wear indicator shows.
Examine the exterior of the product before you use it. Look for cracks or missing pieces.
Use only specified replacement parts.
Replace batteries properly
Replace batteries only with the specified type and rating.
Recharge batteries for the recommended charge cycle only.
Wear eye protection
Wear eye protection if exposure to high-intensity rays or laser radiation exists.
Do not operate in wet/damp conditions
Be aware that condensation may occur if a unit is moved from a cold to a warm environment.
Do not operate in an explosive atmosphere
Keep product surfaces clean and dry
Remove the input signals before you clean the product.
Provide proper ventilation
Refer to the installation instructions in the manual for details on installing the product so it has proper ventilation.
2 Series Mixed Signal Oscilloscopes MSO22 and MSO24 Specifications and Performance Verification 5
Important safety information
Slots and openings are provided for ventilation and should never be covered or otherwise obstructed. Do not push objects into any of the
openings.
Provide a safe working environment
Always place the product in a location convenient for viewing the display and indicators.
Avoid improper or prolonged use of keyboards, pointers, and button pads. Improper or prolonged keyboard or pointer use may result in
serious injury.
Be sure your work area meets applicable ergonomic standards. Consult with an ergonomics professional to avoid stress injuries.
Use only the Tektronix rackmount hardware specified for this product.
Probes and test leads
Before connecting probes or test leads, connect the power cord from the power connector to a properly grounded power outlet.
Keep fingers behind the protective barrier, protective finger guard, or tactile indicator on the probes. Remove all probes, test leads and
accessories that are not in use.
Use only correct Measurement Category (CAT), voltage, temperature, altitude, and amperage rated probes, test leads, and adapters for
any measurement.
Beware of high voltages
Understand the voltage ratings for the probe you are using and do not exceed those ratings. Two ratings are important to know and
understand:
• The maximum measurement voltage from the probe tip to the probe reference lead.
• The maximum floating voltage from the probe reference lead to earth ground.
These two voltage ratings depend on the probe and your application. Refer to the Specifications section of the manual for more
information.
WARNING:
oscilloscope input BNC connector, probe tip, or probe reference lead.
To prevent electrical shock, do not exceed the maximum measurement or maximum floating voltage for the
Connect and disconnect properly.
Connect the probe output to the measurement product before connecting the probe to the circuit under test. Connect the probe reference
lead to the circuit under test before connecting the probe input. Disconnect the probe input and the probe reference lead from the circuit
under test before disconnecting the probe from the measurement product.
De-energize the circuit under test before connecting or disconnecting the current probe.
Connect the probe reference lead to earth ground only.
Do not connect a current probe to any wire that carries voltages or frequencies above the current probe voltage rating.
Inspect the probe and accessories
Before each use, inspect probe and accessories for damage (cuts, tears, or defects in the probe body, accessories, or cable jacket). Do
not use if damaged.
Ground-referenced oscilloscope use
Do not float the reference lead of this probe when using with ground-referenced oscilloscopes. The reference lead must be connected to
earth potential (0 V).
Floating measurement use
Do not float the reference lead of this probe above the rated float voltage.
6
Important safety information
Service safety summary
The Service safety summary section contains additional information required to safely perform service on the product. Only qualified
personnel should perform service procedures. Read this Service safety summary and the General safety summary before performing any
service procedures.
To avoid electric shock
Do not touch exposed connections.
Do not service alone
Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is
present.
Disconnect power
To avoid electric shock, switch off the product power and disconnect the power cord from the mains power before removing any covers or
panels, or opening the case for servicing.
Use care when servicing with power on
Dangerous voltages or currents may exist in this product. Disconnect power, remove battery (if applicable), and disconnect test leads
before removing protective panels, soldering, or replacing components.
Verify safety after repair
Always recheck ground continuity and mains dielectric strength after performing a repair.
Terms in this manual
These terms may appear in this manual:
WARNING:
CAUTION: Caution statements identify conditions or practices that could result in damage to this product or other property.
Warning statements identify conditions or practices that could result in injury or loss of life.
Terms on the product
These terms may appear on the product:
• DANGER indicates an injury hazard immediately accessible as you read the marking.
• WARNING indicates an injury hazard not immediately accessible as you read the marking.
• CAUTION indicates a hazard to property including the product.
2 Series Mixed Signal Oscilloscopes MSO22 and MSO24 Specifications and Performance Verification 7
Important safety information
Symbols on the product
When this symbol is marked on the product, be sure to consult the manual to find out the nature of the potential
hazards and any actions which have to be taken to avoid them. (This symbol may also be used to refer the user to
ratings in the manual.)
The following symbols(s) may appear on the product.
CAUTION: Refer to
Manual
Standby Functional Earth
Protective Ground
(Earth) Terminal
Terminal
Earth Terminal Chassis Ground WARNING: High
Voltage
Use only on an
insulated wire.
Connection and
disconnection to
hazardous bare wire
permitted.
Do not connect
to or remove
from an uninsulated
conductor that is
HAZARDOUS LIVE.
Breakable. Do not
drop.
8
Specifications
Specifications
This chapter contains specifications for the instrument. All specifications are typical unless noted as guaranteed. Typical specifications are
provided for your convenience but are not guaranteed. Specifications that are marked with the symbol are guaranteed and checked in
Performance Verification.
To meet specifications, these conditions must first be met:
• The instrument must have been calibrated in an ambient temperature between 18 °C and 28 °C (64 °F and 82 °F).
• The instrument must be operating within the environmental limits. (See Environmental characteristics).
• The instrument must be powered from a source that meets the specifications. (See Power supply system on page 19).
• The instrument must have been operating continuously for at least 20 minutes within the specified operating temperature range.
• You must perform the Signal path compensation procedure after the warmup period. See the Signal path compensation procedure for
how to perform signal path compensation. If the ambient temperature changes more than 5 °C (9 °F), repeat the procedure.
2 Series Mixed Signal Oscilloscopes MSO22 and MSO24 Specifications and Performance Verification 9
Specifications
Analog signal acquisition system
Number of analog input
2 Series MSO offers 2 and 4 channel models.
channels
Input coupling AC, DC
Input termination selection 1 MΩ only
Input termination, 1 MΩ DC-
1 MΩ ± 1%
coupled
Input capacitance, 1 MΩ DC-
14 pF ± 3 pF
coupled
Number of digitized bits 8 bits
Displayed vertically with 25 digitization levels (DL1) per division, 10.24 divisions dynamic range.
Sensitivity range (coarse), 1MΩ1 mV/Div to 10 V/Div in a 1-2-5 sequence
Sensitivity range (fine) Continuous adjustment from 1 mV/DIV to 10 V/DIV, 1 MΩ 1x
Sensitivity resolution (fine) ≤10% of current setting
Maximum input voltage, 1 MΩ
DC-coupled
The maximum input voltage at the BNC, 300 V
. Installation category II
rms
Derate at 20 dB/decade between 4.5 MHz to 45 MHz
Derate at 14 dB between 45 MHz to 450 MHz; above 450 MHz, 5 V
rms
Maximum peak input voltage at the BNC: ± 424 V
DC gain accuracy Guaranteed for 2 mV/div and above, typical otherwise.
<2 mV/div: ±3.0%, typical, derated at 0.100%/°C above 30 °C
≥2 mV/div: ±2.0%, derated at 0.100%/°C above 30 °C
Offset ranges 1 mV/div to 63.8 mV/div : ±1 V
63.9 mV/div to 999.5 mV/div : ±10 V
1 V/div to 10 V/div : ±100 V
Position range ±5 divisions
Offset accuracy All terms must be converted to volts by multiplying by the current volts/div setting.
>2 mV/div: ± (0.005 X |offset – position | + 0.2 div)
≤2 mV/div: ± (0.005 X |offset – position | + 0.3 div)
Number of waveforms for
2 to 10.24 k waveforms, default of 16 waveforms
average acquisition mode
DC voltage measurement
accuracy, average acquisition
mode
The basic accuracy specification applies directly to any sample and to the following measurements: high,
low, maximum, minimum, mean, cycle mean, RMS, and cycle RMS. The delta volts accuracy specification
applies to subtractive calculations involving two of these measurements. The delta volts (difference
voltage) accuracy specification applies directly to the following measurements; positive overshoot, negative
overshoot, Pk-Pk, and amplitude.
Offset, position, and the constant offset term must be converted to volts by multiplying by the appropriate
volts/div term.
The limits are as follows:
1
DL is the abbreviation for digitization level. A converter can resolve the smallest voltage level change by using an 8-bit A–D converter. This value is also known as
the Least Significant Bit (LSB).
10
Specifications
Measurement type DC accuracy (in volts)
Average of > 16 waveforms ± ((DC Gain accuracy) X |reading -(offset - position)|
+ Offset accuracy + 0.1 div + 1 mV)
Delta volts between any two averages of ≥16
waveforms acquired with the same oscilloscope
setup and ambient conditions
± (DC Gain accuracy X |reading| + 0.08 div + 1.4
mV)
Analog bandwidth
Bandwidth selections 20 MHz, 70 MHz, 100 MHz, 200 MHz, 350 MHz, and 500 MHz (when equal to or less than instrument's
rated bandwidth)
Analog bandwidth Below 5 mV/div, 500 MHz bandwidth is specified as typical.
The limits stated below are for an ambient temperature of ≤30 °C. For each degree above 30 °C, reduce
the upper bandwidth frequency by 1%.
Instrument bandwidth Volts/div setting Bandwidth
70 MHz 1 mV/div – 10 V/div DC – 70 MHz
100 MHz 1 mV/div – 10 V/div DC – 100 MHz
200 MHz 1 mV/div – 10 V/div DC – 200 MHz
350 MHz 1 mV/div – 10 V/div DC – 350 MHz
500 MHz <5 mV/div DC – 500 MHz
500 MHz ≥5 mV/div - 10 V/div DC – 500 MHz
Lower frequency limit, ACcoupled
Upper frequency limit, 20 MHz
bandwidth-limited
Calculated rise time Measurements made using the oscilloscope's automated measurement feature may read slower rise time
<10 Hz
The AC-coupled lower frequency limits are reduced by a factor of 10 (<1 Hz) when 10X passive probes are
used.
20 MHz, ± 25%, DC-coupled
values than those determined by the above equation. This is because the automated measurements do
not take interpolation into account. Measuring using cursors on the interpolated waveform gives a more
accurate result.
The formula is calculated by measuring the –3 dB bandwidth of the oscilloscope. The formula accounts for
the rise time contribution of the oscilloscope independent of the rise time of the signal source.
Calculated rise time (10% to 90%, in ps) equals 0.35/BW except from 1000 to 2100 mentioned in below
table.
Bandwidth Rise time (ps)
500 MHz 1000
350 MHz 1400
200 MHz 2100
100 MHz 3500
70 MHz 5000
2 Series Mixed Signal Oscilloscopes MSO22 and MSO24 Specifications and Performance Verification 11
Specifications
Peak detect or envelope mode
pulse response
Peak detect response indicates how effective the oscilloscope is at picking up a single narrow pulse and
determining its amplitude.
The minimum single pulse widths for peak detect or envelope mode is at least:
Bandwidth (MHz) Minimum pulse width
500 > 2 ns
350 > 3 ns
200 > 5 ns
100 > 10 ns
70 > 14 ns
50 > 20 ns
Skew and delay
Deskew range -95 ns to +95 ns
Crosstalk (channel isolation)
1 MΩ 100:1 30:1
≤ 100 MHz > 100 MHz
Timebase system
Sample rate range Maximum 1.25 GS/s - All channels
Maximum 2.5 GS/s - Half channel
Record length range 10 M Standard
Seconds/Division range 1 ns/div to 1000 s/div when in half channel mode
2 ns/div to 1000 s/div when in full channel mode
Maximum triggered acquisition
rate
Timebase accuracy
Timebase delay time range -10 divisions to 5000 s
Delta time measurement
accuracy (DTA)
>5 k wfm/s
± 25 x 10-6 over any over any ≥1 ms interval
The formula to calculate delta-time measurement accuracy (DTA) for a given instrument setting and input
signal is as follows (assumes insignificant signal content above the Nyquist frequency).SR1 = Slew rate (1
Edge) around 1st point in measurement
SR2 = Slew rate (2nd Edge) around 2nd point in measurement
N = Input-referred noise (V
TBA = Timebase accuracy
tp = Delta-time measurement duration (sec)
RD = (Record length)/(Sample rate)
rms
)
st
12
(assume edge shape that results from Gaussian filter response)
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