This reference design, provided by Dallas Logic Corp, uses the ADC34J22 12b 50MSPS JESD204B data converter and the THS4541 fully differential amplifier to show how to design a high-performance active interface for high speed ADCs. This type of circuit can be used in sensor front end, motor control, and test and measurement applications. The circuit model and derivation of the design equations is presented along with the actual implementation on a PCB. Results of this implementation are presented to show very similar performance as compared to a passive AC coupled transformer interface.
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Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
The DEV-ADC34J22 is a four-channel, 50MSPS ADC Module designed to integrate with Altera’s HSMC standard. The DEV-ADC34J22 features TI’s new JESD204B compliant ADC34J22 Analog Digital Converter (ADC), with clocking conditioning using TI’s LMK04828 jitter cleaner. It provides (...)
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | High-Performance Single-Ended to Differential Active IF for High-Speed ADCs | Aug. 20, 2014 | |
| Technical article | Go differential to differentiate your precision design | PDF | HTML | Aug. 11, 2016 |
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