Name: Tektronix Keithley 2601B-PULSE
Brand: Tektronix
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Model 2601B-PULSE System SourceMeter Instrument Reference Manual Section 4: Sourcing and measuring

2601B-PULSE-901-01A April 2020 4-15

Figure 44: Combining SMU outputs

Pulse region specification (pulser disabled)

Region

(quadrant

diagram)

Region

maximum

Maximum

pulse width

Maximum duty

cycle

1 A at 40 V

DC, no limit

100%

3 A at 6 V

DC, no limit

100%

1.5 A at 40 V

100 ms

25%

5 A at 35 V

4 ms

10 A at 20 V

1.8 ms

5 A at 6 V

10 ms

10%

Model 2601B-PULSE System SourceMeter Instrument Reference Manual1
Safety precautions4
Table of contents6
1 Introduction22
- Welcome22
- Extended warranty22
- Contact information22
- Customer documentation23
- Product software and drivers23
- Capabilities and features24
- Power and environmental ratings25
2 Installation26
- Introduction26
- 2601B-PULSE weights and dimensions26
  - Preparing the instrument for rack mounting30
  - 2601B-P-INT dimensions31
- Installing the 2601B-P-INT31
- Cooling vents33
- Turning the instrument on and off34
- Placing a 2601B-PULSE in standby35
- Warmup period35
- Line frequency configuration36
- Remote communications interfaces36
- Using the interlock67
  - Interlock operation68
- System information71
3 Instrument description72
- Controls, indicators, and connectors72
  - Front panel72
  - Rear panel76
- Menu overview78
- Beeper84
- Displayed error and status messages84
- Display operations85
- USB storage overview99
  - Connecting the USB flash drive99
  - File system navigation100
4 Sourcing and measuring101
- Operation overview101
- DUT test connections106
- DUT connection settings125
- Basic source-measure procedure130
- Operation considerations for the ADC141
  - Autozero141
    - Front-panel autozero141
    - Remote command autozero142
  - NPLC caching142
- Triggering in local mode142
- Configuring trigger attributes in local mode144
  - Front-panel triggering example144
- Configuring for measure-only tests using the MODE key145
- Voltmeter and ammeter measurements145
- Ohms measurements146
- Power measurements149
  - Basic power measurement procedure150
  - Power measurements using the remote interface150
    - Remote power reading command150
    - Power measurement programming example151
- Saved setups151
- Range154
- Digits159
  - Setting display resolution from the front panel159
  - Setting display resolution from a remote interface159
    - Digits commands159
    - Digits programming example159
- Speed when the pulser is disabled160
  - Setting speed160
    - Front-panel speed configuration160
    - Remote speed programming160
      - Speed command160
      - Speed programming example161
- Sweep operation161
- Relative offset175
  - Front panel relative offset175
    - Enabling and disabling relative offset175
    - Defining a relative offset value176
  - Remote relative offset programming176
    - Relative offset commands176
    - Relative offset programming example176
- Filters177
- High-capacitance mode180
  - Understanding high-capacitance mode180
    - Understanding source settling times181
    - Adjusting the voltage source181
      - Understanding the capacitor182
      - Charging the capacitor and making readings182
  - Enabling high-capacitance mode182
5 Reading buffers185
- Overview185
- Front-panel reading buffer control185
- Remote reading buffer programming190
6 Triggering199
- Triggering199
- Remote triggering overview199
  - Using the trigger model201
- SMU event detectors206
  - Clearing SMU event detectors206
  - Using the TRIG key to trigger a sweep206
- Using trigger events to start actions on trigger objects208
  - Action overruns208
- Digital I/O port and TSP-Link synchronization lines209
- Timers211
- Event blenders217
- LAN triggering overview218
- Command interface triggering220
- Trigger generator221
- Manual triggering221
- Interactive triggering221
- Hardware trigger modes226
- Understanding synchronous triggering modes230
- Digital I/O234
7 Theory of operation239
- Analog-to-digital converters239
- Source-measure concepts239
- Measurement settling time considerations264
  - Programming example for controlling settling time delay265
- Effects of load on current source settling time265
- Creating pulses with the 2601B-PULSE SMU266
  - Pulse rise and fall times266
    - Range and pulse settling267
    - SMU load and operating mode267
  - SMU pulse width268
8 Maintenance269
- Introduction269
- Displaying the serial number269
- Line fuse replacement270
- Front-panel tests271
  - Keys test271
  - Display patterns test272
- Upgrading the firmware273
  - Using TSB to upgrade the firmware274
9 Introduction to TSP operation275
- Introduction to TSP operation275
- About TSP commands277
- Factory scripts293
10 Instrument programming297
- Fundamentals of scripting for TSP297
- Fundamentals of programming for TSP309
- Test Script Builder326
- Password management330
- Advanced scripting for TSP332
- TSP-Link system expansion interface341
- TSP-Net354
11 TSP command reference359
- TSP command programming notes359
- Using the TSP command reference362
- TSP commands366
12 Troubleshooting guide753
- Introduction753
- Error levels753
- Effects of errors on scripts753
- Retrieving errors754
- Error summary list754
13 Calibration759
- Calibration759
- Adjustment777
14 Common commands805
- Command summary805
- Script command equivalents806
- Command reference807
15 Status model809
- Overview809
- Clearing registers821
- Programming enable and transition registers822
- Reading registers823
- Status byte and service request (SRQ)823
- Status register sets828
- TSP-Link system status833
  - Status model configuration example833
    - Status configuration (enable) commands834
16 Display character codes836
- 2601B-PULSE display character codes836
17 Frequently asked questions841
- How do I display the instrument's serial number?841
- How do I optimize performance?842
  - Disabling autozero to increase speed842
- How do I upgrade the firmware?842
- How do I use the digital I/O port?843
- How do I trigger other instruments?843
- How do I generate a GPIB service request?844
- How do I store measurements in nonvolatile memory?845
- When should I change the output-off state?846
- How do I make contact check measurements?846
- How can I change the line frequency or voltage?847
- Where can I get the LabVIEW driver?847
- What should I do if I get an 802 interlock error?847
- Why is the reading value 9.91e37?847
18 Next steps848
- Additional 2601B-PULSE information848
Contact information849

Tektronix Keithley 2601B-PULSE Reference Manual

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