Rohde & Schwarz RT-ZS10 User Manual
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Rohde & Schwarz RT-ZS10 User Manual

Rohde & Schwarz RT-ZS10 User Manual

Active voltage probe
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R&S
RT-ZS10E/10/20/30
Active Voltage Probe
User Manual
(>:SO2)
1410353102

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  • Page 1 ® R&S RT-ZS10E/10/20/30 Active Voltage Probe User Manual (>:SO2) 1410353102...
  • Page 2 Rohde & Schwarz GmbH & Co. KG. Trade names are trademarks of the owners. ® 1410.3531.02 | Version 07 | R&S RT-ZS10E/10/20/30 Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol, e.g. ® R&S RT-ZS10/20/30 is indicated as R&S RT-ZS10/20/30.
  • Page 3 Safety Instructions Instrucciones de seguridad Risk of injury and instrument damage The instrument must be used in an appropriate manner to prevent personal injury or instrument damage. ● Do not open the instrument casing. ● Read and observe the "Basic Safety Instructions" delivered as printed brochure with the instrument.
  • Page 4 Safety Instructions - Informaciones de seguridad Safety Instructions for Active Voltage Probes When handling active voltage probes, the following basic rules must be observed. Prior to using an active voltage probe, read the applicable manual including the safety instructions. Keep the safety instructions and the product documentation in a safe place and pass them on to other users.
  • Page 5 Instructions - Instrucciones Instructions for Electrostatic Discharge Protection Risk of damaging electronic components To avoid damage of electronic components, the operational site must be protected against electrostatic discharge (ESD). Wrist strap with cord Floor mat Heel strap Ground connection of operational site The following two methods of ESD protection may be used together or separately: , Wrist strap with cord to ground connection...
  • Page 6 Customer Support Technical support – where and when you need it For quick, expert help with any Rohde & Schwarz equipment, contact one of our Customer Support Centers. A team of highly qualified engineers provides telephone support and will work with you to find a solution to your query on any aspect of the operation, programming or applications of Rohde &...

  • Page 7: Table Of Contents

    ® Contents R&S RT-ZS10E/10/20/30 Contents 1 Product Description.............. 5 1.1 Key Features and Key Characteristics..........5 1.1.1 Key Characteristics................. 5 1.1.2 Key Features...................6 1.1.3 R&S RT-ZS10E..................7 1.2 Unpacking....................7 1.2.1 Inspecting the Contents................8 1.3 Description of the Probe..............8 1.3.1 Probe Head.....................8 1.3.2 Probe Box....................
  • Page 8 ® Contents R&S RT-ZS10E/10/20/30 4.1 Signal Integrity of the Transferred Signal.........27 4.1.1 Bandwidth..................... 27 4.1.2 Connection Inductance................. 29 4.2 Signal Loading of the Input Signal............ 32 4.2.1 Input Impedance................... 32 4.3 Probing Philosophy................35 5 Maintenance and Service............37 5.1 Service Strategy..................37 5.2 Returning for Servicing..............

  • Page 9: Product Description

    ® Product Description R&S RT-ZS10E/10/20/30 Key Features and Key Characteristics Product Description Key Features and Key Characteristics The R&S RT‑ZS10/20/30 is a single-ended active voltage probe with high input impedance. It is used for ground-referenced voltage measurements from DC to 1.0 GHz, 1.5 GHz and 3 GHz, respectively.

  • Page 10: Key Features

    Product Description R&S RT-ZS10E/10/20/30 Key Features and Key Characteristics Bandwidth DC to 1 GHz (R&S RT-ZS10) DC to 1.5 GHz (R&S RT-ZS20) DC to 3 GHz (R&S RT-ZS30) Dynamic range ±8 V with ±12 V offset capability 16 V AC (V Maximum non-destructive input voltage ±30 V...

  • Page 11: R&S Rt-Zs10E

    In contrast to the R&S RT-ZS10, the R&S RT-ZS10E has a limited range of acces- sories, and does not offer offset compensation, micro button and R&S ProbeMe- ter.

  • Page 12: Inspecting The Contents

    ® Product Description R&S RT-ZS10E/10/20/30 Description of the Probe 1.2.1 Inspecting the Contents ● Inspect the package for damage. Keep the package and the cushioning material until the contents have been checked for completeness and the device has been tested. If the packaging material shows any signs of stress, notify the carrier and your Rohde &...

  • Page 13: Probe Box

    ® Product Description R&S RT-ZS10E/10/20/30 Description of the Probe (1) Signal socket (2) Ground socket (3) Micro button The accessories supplied for the probe head sockets are listed in Chapter 1.4.1, "Accesso- ries Supplied", on page 10. Signal and ground sockets are compatible with 0.64 mm (25 mil) square pins and 0.6 mm to 0.8 mm (24 mil to 35 mil) round pins.

  • Page 14: Accessories And Items

    ® Product Description R&S RT-ZS10E/10/20/30 Accessories and Items Accessories and Items The figure below shows all accessories that are available for the R&S RT‑ZS10/20/30 active voltage probe. Figure 1-1: Available accessories 1.4.1 Accessories Supplied The following table shows the accessories supplied with the R&S RT‑ZS10/20/30 active voltage probe.
  • Page 15 ® Product Description R&S RT-ZS10E/10/20/30 Accessories and Items Item Quantity Description Ground pin, pogo Ground pin, solderable, offset Ground adapter, square pin Lead, 6 cm / 2.4 in Lead, 15 cm / 5.9 in Mini clip Micro clip User Manual 1410.3531.02 ─ 07...

  • Page 16: Optional Accessories

    Ground adapter, square pin Marker band kit Mini clip Micro clip Lead, 6 cm / 2.4 in Lead, 15 cm / 5.9 in Accessory box and vials Carrying case with foam inlay R&S RT-ZS10/20/30 User Manual User Manual 1410.3531.02 ─ 07...

  • Page 17: Service Accessories

    ® Product Description R&S RT-ZS10E/10/20/30 Accessories and Items Table 1-3: R&S RT-ZA3 pin set Item Quantity Description Signal pin Contains the pins available for the R&S RT‑ZS10/20/30. Ground pin, pogo Ground pin, solderable, offset Ground adapter, square pin Marker band kit Table 1-4: R&S RT-ZA4 mini clips Item Quantity...
  • Page 18 ® Product Description R&S RT-ZS10E/10/20/30 Accessories and Items Table 1-8: Service accessories Item Description R&S RT-ZK1 The service kit is used to calibrate the probe, to do perform- ance tests, and for servicing. The service kit includes all adapters and accessories to connect the probe to the required measuring instruments.

  • Page 19: Putting Into Operation

    ® Putting into Operation R&S RT-ZS10E/10/20/30 Putting into Operation The probe is designed for usage with oscilloscopes that have a Rohde & Schwarz probe interface. Supported Rohde & Schwarz oscilloscopes are listed in the pro- be's data sheet. Read and observe the "Basic Safety Instructions" that are delivered with the probe as a printed brochure.

  • Page 20: Connecting The Probe To The Oscilloscope

    ® Putting into Operation R&S RT-ZS10E/10/20/30 Connecting the Probe to the Oscilloscope During usage, the probe slightly heats up. Warming is normal behavior and not a sign of malfunction. Damage caused by electrostatic discharge Electrostatic discharge (ESD) can damage the electronic components of the probe and the instrument, and also the device under test (DUT).

  • Page 21: Identification Of The Probe

    ® Putting into Operation R&S RT-ZS10E/10/20/30 Using the Probe ► To disconnect the probe: a) Press and hold the release button (3). b) Pull the probe box away from the oscilloscope. Identification of the Probe When the probe is connected to the oscilloscope, the oscilloscope recognizes the probe and reads out the probe-specific parameters.

  • Page 22: Micro Button

    ® Putting into Operation R&S RT-ZS10E/10/20/30 Using the Probe 4. Adjust the zero position of the waveform using the appropriate function of the oscilloscope ("AutoZero", "Zero Adjust" or similar). The waveform is set to 0 V on the horizontal centerline of the oscilloscope. 2.3.2 Micro Button The micro button provides easy and quick access to important functions of the...

  • Page 23: R&S Probemeter

    ® Putting into Operation R&S RT-ZS10E/10/20/30 Using the Probe Figure 2-2: Offset compensation voltage and dynamic range There are several ways to set the offset compensation: ● Use the vertical knob at the oscilloscope if its function is set to offset. ●...
  • Page 24 ® Putting into Operation R&S RT-ZS10E/10/20/30 Using the Probe When the R&S ProbeMeter is active, the measured values are displayed on the oscilloscope. The R&S ProbeMeter state is part of the probe settings of the chan- nel to which the probe is connected. For details, refer to the user manual of the Rohde &...

  • Page 25: Connecting The Probe To The Dut

    ® Connecting the Probe to the DUT R&S RT-ZS10E/10/20/30 Connecting the Probe to the DUT This chapter describes the different ways of connecting the probe to the DUT. In addition, the usage of the supplied accessories is explained. To achieve optimum RF performance, the connections must be as short as possi- ble.
  • Page 26 ® Connecting the Probe to the DUT R&S RT-ZS10E/10/20/30 Ground pin, pogo The spring-loaded ground pin allows handheld probing. Because this ground pin compen- sates for minor unevenness and movements, it can establish a firm contact with the test point. It fits into the ground socket of the probe head.
  • Page 27 ® Connecting the Probe to the DUT R&S RT-ZS10E/10/20/30 Ground adapter, square pin The ground adapter is used for plugging the probe onto pin strips with 0.64 mm square pins (typical pitch 2.54 mm, 100 mil). The adapter is plugged onto the ground and signal socket of the probe.
  • Page 28 ® Connecting the Probe to the DUT R&S RT-ZS10E/10/20/30 Clips Mini clip The mini clip is designed for probing large IC pins, wires and through-hole components. For probing, clamp the mini clip to a pin and connect it to the signal socket or the ground socket using a lead.

  • Page 29: Measurement Principles

    ® Measurement Principles R&S RT-ZS10E/10/20/30 Measurement Principles The R&S RT‑ZS10/20/30 active voltage probe provides an electrical connection between the DUT and the oscilloscope. The probe transfers the voltage of the electrical signal tapped off the DUT to the oscilloscope, where it is displayed graphically.
  • Page 30 ® Measurement Principles R&S RT-ZS10E/10/20/30 ‑ ZS10/20/30 probe Figure 4-1: Equivalent circuit model of the R&S RT Table 4-1: Designations Abbreviation Description Voltage at the test point without probe connected Voltage at the test point with probe connected, corresponds to the input voltage of the probe Source resistance of the DUT Load resistance of the DUT DC input resistance...

  • Page 31: Signal Integrity Of The Transferred Signal

    ® Measurement Principles R&S RT-ZS10E/10/20/30 Signal Integrity of the Transferred Signal Signal Integrity of the Transferred Signal The following sections describe the effect that bandwidth and connection induc- tance have on signal integrity. 4.1.1 Bandwidth The bandwidth BW of a probe is one of its specific parameters. The bandwidth of the probe and the bandwidth of the base unit together form the system band- width.
  • Page 32 ® Measurement Principles R&S RT-ZS10E/10/20/30 Signal Integrity of the Transferred Signal ● Determines the minimum measurable signal rise time. The rise time t of the rise probe is inversely proportional to its bandwidth. The following approximation applies:  rise In addition to bandwidth, a constant amplitude/frequency response of the probe is decisive for high signal integrity.

  • Page 33: Connection Inductance

    ® Measurement Principles R&S RT-ZS10E/10/20/30 Signal Integrity of the Transferred Signal 4.1.2 Connection Inductance The connection inductance L is caused by connecting the probe to the DUT. In contrast to the probe-specific bandwidth, the connection inductance mainly depends on the selected type. The connection inductance: ●...
  • Page 34 ® Measurement Principles R&S RT-ZS10E/10/20/30 Signal Integrity of the Transferred Signal User Manual 1410.3531.02 ─ 07...
  • Page 35 ® Measurement Principles R&S RT-ZS10E/10/20/30 Signal Integrity of the Transferred Signal Vout solderable pin Vout pogo pin 1000 Time in ps Figure 4-5: Step response of the R&S RT-ZS30 with a type 1 connection Vout ground lead 15 cm Vout ground lead 6 cm 900 1000 Time in ps Figure 4-6: Step response of the R&S RT-ZS30 with a type 2 connection...

  • Page 36: Signal Loading Of The Input Signal

    ® Measurement Principles R&S RT-ZS10E/10/20/30 Signal Loading of the Input Signal Vout signal clip Vout signal lead Time in ns Figure 4-7: Step response of the R&S RT-ZS30 with a type 3 connection Signal Loading of the Input Signal The previous section dealt with the transfer function and step response of the probe.
  • Page 37 ® Measurement Principles R&S RT-ZS10E/10/20/30 Signal Loading of the Input Signal The resulting input impedance versus frequency is indicated in Figure 4-8. The trace shows three characteristic areas that can be assigned to R and R The resulting loading of a step signal at the input of the probe is given in Fig- 4-9.
  • Page 38 ® Measurement Principles R&S RT-ZS10E/10/20/30 Signal Loading of the Input Signal init where   τ 3      init   1000 Time in ps ‑ ZS10/20/30 probe at an effective source Figure 4-9: Signal loading caused by the R&S RT impedance of 25 Ω...

  • Page 39: Probing Philosophy

    ® Measurement Principles R&S RT-ZS10E/10/20/30 Probing Philosophy 4.2.1.3 RF Resistance The RF resistance R determines the minimum input impedance and thus the maximum loading at high frequencies above 1.0 GHz. Thus, the measurement result depends on the source impedance of the DUT. The RF resistance prevents the input voltage from rising immediately to its final value for fast transients.
  • Page 40 ® Measurement Principles R&S RT-ZS10E/10/20/30 Probing Philosophy Figure 4-10: Unloaded and loaded input signal and step response (for RT-ZS30) User Manual 1410.3531.02 ─ 07...

  • Page 41: Maintenance And Service

    ® Maintenance and Service R&S RT-ZS10E/10/20/30 Returning for Servicing Maintenance and Service Service Strategy Like all Rohde & Schwarz products, Rohde & Schwarz probes and adapters are of high quality and require only minimum service and repair. However, if service is needed, contact your Rohde &...

  • Page 42: Cleaning

    ® Maintenance and Service R&S RT-ZS10E/10/20/30 Spare Parts Cleaning Product damage caused by cleaning agents Cleaning agents contain substances that can damage the product, for example, solvent can damage the labeling or plastic parts. Never use cleaning agents such as solvents (thinners, acetone, etc.), acids, bases or other substances.
  • Page 43 ® Maintenance and Service R&S RT-ZS10E/10/20/30 Spare Parts Table 5-1: Accessories spare parts Pos. Item Description Material number Signal pin 1416.0005.00 Ground pin, pogo 1416.0034.00 Ground pin, solderable, off- 1416.0040.00 Ground adapter, square pin 1416.0063.00 Lead, 6 cm / 2.4 in 1416.0128.00 Lead, 15 cm / 5.9 in 1416.0134.00...
  • Page 44 ® Maintenance and Service R&S RT-ZS10E/10/20/30 Spare Parts Pos. Item Description Material number Pogo pin Pogo pin connector, 6 pins 3584.6396.00 R&S RT-ZK1 R&S RT-ZK1 service kit 1410.5157.02 Table 5-2: Parts for ESD prevention Pos. Item Material number ESD wrist strap 0008.9959.00 ESD grounding cable 1043.4962.00...

  • Page 45: Functional Check

    ® Functional Check R&S RT-ZS10E/10/20/30 Functional Check The functional check confirms the basic operation of the R&S RT‑ZS10/20/30 active voltage probe. The functional check is not suitable for verifying compliance with the probe specifications. 1. Connect the R&S RT‑ZS10/20/30 probe to a Rohde & Schwarz oscilloscope as described in Chapter 2.1, "Connecting the Probe to the Oscilloscope",...

  • Page 46: Index

    ® Index R&S RT-ZS10E/10/20/30 Index Mini clip ........... 24 Accessories ..........10 Spare Parts ......... 38 N/USB adapter ........13 Usage ..........21 AutoZero ..........17 Offset compensation ....... 18 Bandwidth ..........6, 27 Pins Inserting and removing ....... 21 Cleaning ..........38 Usage ..........

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