DC890B - Fast DAACS USB Controller for QuickEval-II Evaluation Kits

Features

  • USB Serial Controller for QuickEval II™ Evaluation Kits
  • For CMOS/LVDS output ADCs with data output rate above 130Msps
  • Automatically Detects which Evaluation Kit is Connected
  • Disclaimer: Linear Technology cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Linear Technology product. No circuit patent licenses are implied. Linear Technology reserves the right to change the circuitry and specifications without notice at any time.

     

Typical Application

DC890
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Description

Demonstration circuit DC890B along with QuickEval- II™ software provides a USB based Windows PC hosted digital data acquisition system supporting CMOS/LVDS output ADCs up to 250Msps. The DC890B must be powered from an external 6±0.5VDC power supply when operating in LVDS mode. When operating in CMOS mode, the external power supply is optional. The Linear Technology supplied QuickEval-II evaluation software automatically detects the DC890B and can also detect many of the standard ADC demonstration circuits boards. The DC890B will not enable LVDS mode unless an external 6.0VDC power source is available. The QuickEval-II system provides for fast and easy performance evaluation of high speed ADCs. FastDAACS collects up to 256K word samples and then performs various analyses on the data including calculating SNR, SINAD, THD, SFDR and ENOB. The digitized input, an FFT of the collected data, the Primitive Wave of the sample set or a IFFT of modified frequency domain data is plotted to a display window to facilitate analyzing distortion products and sources. Figure 1 shows a picture of the DC890B. The DC890B is connected to the ADC demonstration circuit via a 100 pin edge connector, to the PC by a USB A-B cable and to an optional power supply either by a 5mm power plug or optionally by turrets. Figure 2 details the connections.
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Packaging

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Order Info

Evaluation Kits

Part Number Description Price
DC890B High Speed USB Data Collection Board $300.00
DC890_LVDS_XFMR LVDS Power Transformer, goes with DC890B/ ADC LVDS demoboards $0.00
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Applications

 
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Simulate

The QuickEval-II System is a USB-based product demonstration and data acquisition system for use with Linear Technology’s high performance ADC's. 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. The software also provides an automatic update feature to keep the software current with the latest set of device drivers.

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