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Solutions Search - PScope

The PScope System is a USB-based product demonstration and data acquisition system for use with Linear Technology’s high performance ADCs and signal chain receiver family. The system consists of a USB Data Acquisition Controller board that connects to individual daughter cards for specific Linear Technology ADCs. The software collects and analyzes data from the ADC in both the time and frequency domains and displays relevant parameters for the device being evaluated. PScope allows users to evaluate the SNR, SFDR, THD, as well as other key parameters, quickly and easily. PScope can also perform more complicated calculations such as intermodulation distortion from a 2-tone test, or adjacent channel power ratios (ACPR) from a spread spectrum signal, and supports simultaneous evaluation of multiple channel ADCs.

The software also provides an automatic update feature to keep the software current with the latest set of device drivers.

Use PScope software with the DC718, DC890 and DC1371 Data Collection Boards.

Send comments or questions to quikeval@linear.com

Increase Spectral Resolution for the LTC2387-18 Demo Board - Part 1

Doug Stuetzle - Senior Analog Applications Engineer Oct 14th 2016
Introduction The LTC2387-18 is a low noise, high speed, 18-bit 15Msps successive approximation register (SAR) ADC. The combination of excellent linearity and wide dynamic range makes the LTC2387-18 ideal for high speed imaging and instrumentation applications. No latency operation provides a unique solution ...

Blog Post PScope 

 

Increase Spectral Resolution for the LTC2387-18 Demo Board - Part 2

Doug Stuetzle - Senior Analog Applications Engineer Oct 14th 2016
Introduction In Part 1 we designed and tested a lowpass + downsample structure that increased the spectral resolution of the DC2290A-A demonstration circuit for the LTC2387-18 high speed successive approximation register (SAR) ADC from 114Hz to 0.596Hz per bin. The average noise level per bin was ...

Blog Post PScope 

 

Using the Averaging Functions of PScope

Clarence Mayott - Applications Engineer Jul 18th 2016
When looking at the sampled output data from an analog to digital converter (ADC) it is often desirable to average blocks of samples from cycle to cycle.  This will reveal more details about the ADC’s characteristics, like the true shape of the noise floor, and may reveal low level spurs as well. PScope, Linear Technology’s ...

Blog Post PScope 

 

A Low Jitter Clock is Required to Evaluate High Resolution ADCs

Guy Hoover - Applications Engineer Mar 3rd 2014
“How bad can the ADC clock be and still get good SNR results?” I’ve never been asked this question directly by a customer but I do periodically get asked about using clock sources that are not appropriate for high resolution ADCs. Usually it involves a function generator which can have jitter up to 1nsRMS. ...

Blog Post PScope 

 

Coherent Sampling with PScope

Clarence Mayott - Applications Engineer Nov 22nd 2013
The most common problem we encounter in interpreting data from PScope is non-coherent sampling. A non-coherent signal is one in which a complete period is not sampled in the data record.   This means there is a partial period that is sampled (Figure 1).  The non-complete period is translated into frequency spreading ...

Blog Post PScope 

 

PScope Basics

Clarence Mayott - Applications Engineer Nov 8th 2013
Introduction When Linear Technology sends out a high speed ADC demo board we also provide the tools to evaluate that demo board. PScope is Linear Technology’s data collection software—it’s as simple as it is powerful. In order to get the demo board working you need to apply power to the demo board, a clock ...

Blog Post PScope 

 

PScope: High-Speed ADC Data Collection Software

Clarence Mayott - Applications Engineer Jan 4th 2011
When Linear Technology provides a customer with a high speed ADC demo board we also provide PScope, the software to evaluate the demo board. PScope is a simple software package that can collect, and display data from high speed ADC demo boards. It will also provide a simple and easy way to measure the key performance parameters ...

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