High Perf Single Ended to Diff Active Interface for High Speed ADC Developed by Dallas Logic Corp

(ACTIVE) TIDA-00294

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Key Document

Description

This reference design uses the ADC34J22 12b 50Msps JESD204B data converter and the THS4541 fully differential amplifer to demonstrate 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.

Features
  1. Provide a circuit model and schematic for the implementation of a single to differential active interface using a Fully Differential Amplifier
  2. Derive the design equations used to solve for the surrounding components around the circuit implementation
  3. Compare results obtained with the passive AC coupled transformer interface and the active DC fully differential amplifier interface.


  




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Part Number Buy from Texas Instruments or Third Party Status

DEV-ADC34J22:
DEV-ADC34J22 4-channel 50MSPS ADC Evaluation Module

Go to Dallas Logic Corporation
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TI Devices (12)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADC32J22  Dual Channel 12-bit 50 MSPS Analog to Digital Converter with JESD204B Interface  Analog to Digital Converter  Sample & Buy View Design Kits & Evaluation Modules
ADC32J23  Dual Channel 12-bit 80 MSPS Analog to Analog to Digital Converter with JESD204B Interface  Analog to Digital Converter  Sample & Buy View Design Kits & Evaluation Modules
ADC32J24  Dual Channel 12-bit 125 MSPS Analog to Digital Converter with JESD204B Interface  Analog to Digital Converter  Sample & Buy View Design Kits & Evaluation Modules
ADC32J25  Dual Channel 12-bit 160 MSPS Analog to Digital Converter with JESD204B Interface  Analog to Digital Converter  Sample & Buy View Design Kits & Evaluation Modules
ADC32J42  Dual Channel 14-bit 50 Msps Analog to Digital Converter with JESD204B Interface  Analog to Digital Converter  Sample & Buy View Design Kits & Evaluation Modules
ADC32J43  Dual Channel 14-bit 80 Msps Analog to Digital Converter with JESD204B Interface  Analog to Digital Converter  Sample & Buy View Design Kits & Evaluation Modules
ADC32J44  Dual Channel 14-bit 125 Msps Analog to Digital Converter with JESD204B Interface  Analog to Digital Converter  Sample & Buy View Design Kits & Evaluation Modules
ADC32J45  Dual Channel 14-bit 160 Msps Analog to Digital Converter with JESD204B Interface  Analog to Digital Converter  Sample & Buy View Design Kits & Evaluation Modules
ADC34J22  Quad 12-bit 50 MSPS Analog to Digital Converter with JESD204B Interface  Analog to Digital Converter  Sample & Buy View Design Kits & Evaluation Modules
THS4541  High-Speed Differential I/O Amplifier  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
THS4541-Q1  Automotive High-Speed Differential I/O Amplifier  Operational Amplifiers (Op Amps)  Sample & Buy View Design Kits & Evaluation Modules
TPS7A8101  Low-Noise, High-Bandwidth PSRR, Low-Dropout 1-A Linear Regulator  Linear Regulator (LDO)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 560 20 Aug 2014 793
Design files (3)
Title Abstract Type Size (KB) Date Views
PDF 3003 20 Aug 2014 147
PDF 87 20 Aug 2014 233
PDF 298 20 Aug 2014 366

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