Keysight Agilent DSO1102B Analog Digital Oscilloscope 100 MHz 2 Analog Channels

Description of Keysight Agilent DSO1102B

• Digital storage oscilloscopes (DSO) are the primary tools used today by digital designers to perform signal integrity measurements such as setup/hold times, eye margin, and rise/fall times. The two key banner specifications that affect an oscilloscope’s signal integrity measurement accuracy, are bandwidth and sample rate. Most engineers have a good idea of how much bandwidth they need for their digital measurements. However, there is often a lot of confusion about required sample rates—and engineers often assume that scopes with the highest sample rates produce the most accurate digital measurements. But is this true?
• Interleaved Real-Time Sampling
• When ADC technology has been stretched to its limit in terms of maximum sample rate, how do oscilloscope vendors create scopes with even higher sample rates? The drive for higher sample rates may be simply to satisfy scope users’ perception that “more is better” or higher sample rates may actually be required to produce higher-bandwidth real-time oscilloscope measurements. But producing higher sample rates in oscilloscopes is not as easy as simply selecting a higher sample rate off-the-shelf analog-to-digital converter.
• A common technique adopted by all major scope vendors is to interleave multiple real-time ADCs. But don’t confuse this sampling technique with interleaving samples from repetitive acquisitions, which we call “equivalent-time” sampling.
• Scopes with real-time interleaved sampling must adhere to two requirements. For accurate distortion-free interleaving, each ADC’s vertical gain, offset and frequency response must be closely matched. Secondly, the phase-delayed clocks must be aligned with high precision in order to satisfy Nyquist’s rule #2 which dictates equally-spaced samples. In other words, the sample clock for ADC #2 must be delayed precisely 180 degrees after the clock that samples ADC #1. Both of these criteria are important for accurate interleaving.

Feature:

• 100 MHz
• 2 analog channels
• Capture long time periods with high resolution and 16 kpts memory
• See signals more clearly with a 5.7-inch color LCD display
• Speed analysis with 23 auto measurements and waveform math, including FFT
• Simplify testing with go/no go mask testing, sequence mode (1000 trigger events), and digital filters
• Increase productivity with built-in help in 11 languages, USB connectivity, and free student lab guide

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