Sensepeek 7011 SQG30-DC Probe

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Passive 3 GHz probe, DC-coupled, low impedance (500 Ω) with SMA connection The SQG probes enable hands-free high-frequency measurements without soldering and impress with their flat frequency response, low input capacitance and minimal signal distortion.

Attenuation	10:1
Input Impedance	500 Ω / 0.35 pF
Bandwidth	3 GHz
Rise Time	< 103 ps
Cable Length	1.2 m
Connection	SMA

1 year warranty

No.: 7011
EAN: 7350145660496

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Shipping costs outside EU

in Stock

€ 249.- net (VAT Details)

€ 296.31 incl. 19% VAT

Description

Model	SQG15-AC	SQG15-DC	SQG30-AC	SQG30-DC	SQG60-AC	SQG60-DC
Coupling	AC	DC	AC	DC	AC	DC
Divider Factor	10:1	10:1	10:1	10:1	10:1	10:1
Bandwidth (-3dB)	1.5 GHz	1.5 GHz	3 GHz	3 GHz	6 GHz	6 GHz
Output Connector	BNC	BNC	SMA	SMA	SMA	SMA
Maximum Usable Data Rate (Fundamental)	3 Gbps	3 Gbps	6 Gbps	6 Gbps	12 Gbps	12 Gbps
Transition Time	< 190 ps	< 190 ps	< 103 ps	< 103 ps	< 52 ps	< 52 ps
Probe Tip Impedance	500 Ω	500 Ω	500 Ω	500 Ω	333 Ω	333 Ω
Probe tip capacitance, typical	0.35 pF	0.35 pF	0.35 pF	0.35 pF	0.35 pF	0.35 pF
Continuous voltage	6.6 V AC RMS	16.4 V RMS	6.0 V AC RMS	15.2 V RMS	6.3 V AC RMS	13.0 V RMS

Instruments

The SQG-series is suitable for use with any measurement instrument featuring a 50 Ω input impedance, making them versatile across various applications, including:

Oscilloscopes
Sampling Oscilloscopes
Network Analyzers
Spectrum and Modulation Analyzers
Receivers
Power Meters
Millivoltmeters

Unlike many other probes on the market, all performance data is delivered straight out of the box, eliminating the need for extra accessories or soldering attachments, saving you time and hassle

Reliable contact

The SQG-series includes exchangeable fine-pitch spring-tipped test needles, ensuring reliable contact with small or delicate components.

Dual ground

The dual ground options, a dual needle ground with a 2.3mm tip pitch, perfect for PCB-mounted RF connectors, and a solid single ground with a 6.5mm tip pitch, designed for when ground points are farther away, make this probe adaptable to a wide variety of setups, offering flexibility no engineer should be without.

AC-or DC coupling

Sensepeek provides both AC and DC-coupled probes, designed for engineers who need precise signal integrity across a wide range of applications. Low-impedance probes inherently load the signal being probed, slightly reducing its amplitude. In the case of signals with a DC bias, these probes may source or sink current from the signal source, potentially affecting the operating bias of sensitive devices. AC-coupled probing is particularly advantageous when working with DC-biased data streams, such as those found in high-speed interfaces like USB, HDMI, and SATA, or differential signaling standards like ECL and PECL. AC-coupled probes are also ideal for examining small, high-frequency signals on supply lines or control circuits, critical for diagnosing issues such as power supply noise, current ripple, or decoupling inefficiencies.

Compatibility with the PCBite-series

Both the length and weight of the SQG probes are perfectly balanced for use with PCBite holders, ensuring optimal performance for handsfree applications. The SQG-series probes are designed for superior stability with a low point of gravity, enhancing reliability. All probes are insulated and can be used handheld like traditional probes, but they truly excel when utilized in handsfree mode. Additionally, the probe and its accessories are delivered in a specially designed case for safe transport and storage. The SQG-series is the ideal solution for engineers looking for precision, stability, and ease of use in high-frequency measurements. Whether you're troubleshooting power integrity problems or analyzing signal fidelity in high-speed digital designs, Sensepeek’s range of AC and DC-coupled probes offers the versatility and precision that high-frequency and electronics engineers demand.

Minimizing Signal Disruption in High-Frequency Probing

Probing microwave transmission lines presents a significant challenge, as adding conductor material can introduce capacitance and disrupt the line's geometry and impedance. This interference can lead to inaccuracies at the contact point. However, by reducing the probe’s loading effect and ensuring consistent performance across all relevant frequencies, the primary impact is a slight reduction in signal amplitude at the probe tip. Importantly, this reduction doesn’t alter the waveform or its spectral content and phases. By adjusting the probe or instrument gain, or scaling the measurement data, the small amplitude loss can be compensated for, ensuring precise and accurate measurements.