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Keithley 3390 Adjustment Manual

50 khz arbitrary waveform / function generator
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Model 3390
50 MHz Arbitrary Waveform / Function Generator
Verification and Adjustment Manual
3390-905-01 Rev. B / May 2016
*P3390-905-01B*
3390-905-01
A Gr eat er M e as ure of Co nf i de nc e
www.tek.com/keithley

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  • Page 1 Model 3390 50 MHz Arbitrary Waveform / Function Generator Verification and Adjustment Manual 3390-905-01 Rev. B / May 2016 *P3390-905-01B* 3390-905-01 A Gr eat er M e as ure of Co nf i de nc e...
  • Page 2 Any unauthorized reproduction, photocopy, or use of the information herein, in whole or in part, without the prior written approval of Keithley Instruments is strictly prohibited. All Keithley Instruments product names are trademarks or registered trademarks of Keithley Instruments. Other brand names are trademarks or registered trademarks of their respective holders.

  • Page 3: Safety Precautions

    Keithley Instruments products are designed for use with electrical signals that are measurement, control, and data I/O connections, with low transient overvoltages, and must not be directly connected to mains voltage or to voltage sources with high transient overvoltages.
  • Page 4 (note that selected parts should be purchased only through Keithley Instruments to maintain accuracy and functionality of the product). If you are unsure about the applicability of a replacement component, call a Keithley Instruments office for information.

  • Page 5: Table Of Contents

    Table of Contents Verification procedures .................... 1-1 Verification and adjustment procedures ................1-1 Verification interval ....................... 1-1 Recommended adjustment ....................1-1 Recommended test equipment .................... 1-2 Optimal test conditions ......................1-2 Verification tests ........................1-3 Self Test ............................ 1-3 Performance verification tests ....................1-3 Amplitude and flatness verification procedures ..............

  • Page 6: Verification Procedures

    Recommended adjustment Whatever verification interval you select, Keithley Instruments recommends that complete readjustment should always be performed at the verification interval. This will assure that the Keithley Instruments 3390 will remain within specification for the next verification interval. This criterion for readjustment best provides long-term stability.

  • Page 7: Recommended Test Equipment

    Section 1: Verification procedures 3390 50 kHz Arbitrary Waveform / Function Generator Verification and Adjustment Manual Recommended test equipment The table below identifies the recommended equipment needed for completing the verification and adjustment procedures. In the case that the instrument listed is not available, you may substitute it for an instrument with similar specifications.

  • Page 8: Verification Tests

    3390 50 kHz Arbitrary Waveform / Function Generator Verification and Adjustment Manual Section 1: Verification procedures Verification tests Use the performance verification tests to verify the measurement performance of the instrument. The performance verification tests are based upon the instrument's specifications.

  • Page 9: Amplitude And Flatness Verification Worksheet

    Section 1: Verification procedures 3390 50 kHz Arbitrary Waveform / Function Generator Verification and Adjustment Manual Amplitude and flatness verification worksheet Enter the following measurements 1 KHz_0dB_reference 1 KHz_10dB_reference 1 KHz_20dB_reference Calculation of the dBm value of the RMS voltage 10 ×...

  • Page 10: Internal Timebase Verification

    Section 1: Verification procedures Internal timebase verification This test verifies the output frequency accuracy of the 3390. A single generated frequency provides all of the output frequencies. 1. Connect a frequency counter as shown below (the frequency counter input should be terminated at 50 Ω).

  • Page 11: Ac Amplitude Verification For High Impedance

    Section 1: Verification procedures 3390 50 kHz Arbitrary Waveform / Function Generator Verification and Adjustment Manual AC amplitude verification for high impedance This procedure checks the AC amplitude output accuracy at a frequency of 1 kHz, and establishes reference measurements for the higher frequency flatness verification procedures.

  • Page 12: Low Frequency Flatness Verification

    3390 50 kHz Arbitrary Waveform / Function Generator Verification and Adjustment Manual Section 1: Verification procedures 2. Set the outputs (found in the table below) and measure the output voltage with the DMM. Press Utility to set the output impedance to high–Z. Assure that the output is enabled.

  • Page 13: Checking 0 Db Range Flatness

    Section 1: Verification procedures 3390 50 kHz Arbitrary Waveform / Function Generator Verification and Adjustment Manual Checking 0 dB range flatness This test checks the high frequency AC amplitude flatness above 100 KHz on the 0 dB attenuator range. Flatness is relative to 1 KHz.
  • Page 14 This sets the power meter to directly read the flatness error specification relative to 1 KHz. 100 KHz_0dB_offset is calculated on the Amplitude and Flatness Verification Worksheet. 5. Set the 3390 to each output described in the following table and measure the output amplitude with the power meter (the relative measurement in dB.)

  • Page 15: Checking +10 Db Range Flatness

    1 kHz. 100kHz_10dB_offset is calculated on the Amplitude and Flatness Verification Worksheet. 6. Set the 3390 to each output described in the table below and measure the output amplitude with the power meter (the relative measurement in dB).

  • Page 16: Checking +20 Db Range Flatness

    3390 50 kHz Arbitrary Waveform / Function Generator Verification and Adjustment Manual Section 1: Verification procedures Checking +20 db range flatness This procedure checks the high frequency AC amplitude flatness above 100 kHz on the +20 dB attenuator range. Flatness is relative to 1 kHz.
  • Page 17 1 kHz. 100kHz_20dB_offset is calculated on the Amplitude and Flatness Verification Worksheet. 6. Set the 3390 to each output described in the table below and measure the output amplitude with the power meter.

  • Page 18: Verification And Adjustment Security

    3390 50 kHz Arbitrary Waveform / Function Generator Verification and Adjustment Manual Section 1: Verification procedures Verification and adjustment security This feature allows the user to enter a security code to prevent accidental or unauthorized adjustments of the instrument. When you first receive your instrument, it is secured. Before you adjust the instrument, unsecure it by inputting the correct security code.

  • Page 19: Verification Procedure And Verification Item Adjustment Tests

    Section 1: Verification procedures 3390 50 kHz Arbitrary Waveform / Function Generator Verification and Adjustment Manual Verification procedure and verification item adjustment tests self test 2-5 : Freq_10MHz : less : more : near : true : ADC_2V : Self-Cal Vos &...

  • Page 20: Equipment Setup

    3390 50 kHz Arbitrary Waveform / Function Generator Verification and Adjustment Manual Section 1: Verification procedures Equipment setup Required equipment Brand Equipment Description Keysight 3458A 8-1/2 Digit Multimeter Keysight 53132A Universal counter Keysight E4418B Power meter Keysight 8482A Power sensor...

  • Page 21: Manualadjustment.exe: Software Interface Introduction

    Section 1: Verification procedures 3390 50 kHz Arbitrary Waveform / Function Generator Verification and Adjustment Manual ManualAdjustment.exe: Software interface introduction Figure 6: ManualAdjustment.exe software interface 1-16 3390-905-01Rev. B / May 2016...
  • Page 22 3390 50 kHz Arbitrary Waveform / Function Generator Verification and Adjustment Manual Section 1: Verification procedures • Scan INSTR: Scan all of the connected equipment to see if all of the required instruments are set. • Zero/Cal: Power sensor calibration. Connect the power sensor to the POWER REF of E4418B and then execute.

  • Page 23: Manualadjustment.exe: Software Operation

    "Model Name" is not alphabetic, the system will pick the first and last letter of the company name for the header, plus "Model Name." For example, the Keithley 3390 would be "KY3390". Figure 8: ManualAdjustment.exe secure code box 2.
  • Page 24 3390 50 kHz Arbitrary Waveform / Function Generator Verification and Adjustment Manual Section 1: Verification procedures 3. An error message will display as shown below, during an calibration error. Figure 10: ManualAdjustment.exe calibration error occur box 4. If Secure AWG after calibrated was checked, the manual adjustment function will be locked by the secure code after calibration is completed.
  • Page 25 All other trademarks and trade names are the property of their respective companies. Keithley Instruments Corporate Headquarters • 28775 Aurora Road • Cleveland, Ohio 44139 • 440-248-0400 • Fax: 440-248-6168 • 1-800-935-5595 • www.tek.com/keithley A Gr eater M easur e of C onfi dence...

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