TIDA-01036

High-Q Active Differential Bandpass Filter Reference Design for Instrumentation Qualification

TIDA-01036

Design files

Overview

The TIDA-01036 reference design demonstrates a high quality factor (Q factor) active differential bandpass filter. Such filters improve signal source SNR and may be used for data acquisition (DAQ) module testing. This filter may also be used to design a signal conditioning circuit in a DAQ system analog front end.

Features
  • Differential input filter supports up to 100 KHz center frequency with high quality factor
  • Designed fully differential amplifier (FDS) for low distortion and high SNR
  • Multiple feedback topology (MFT) is used for high quality factor
  • High performance device characterization (A/D and D/A) and validation
  • Compact solution that replaces bulky high order passive filter

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUCC9A.PDF (1847 K)

Reference design overview and verified performance test data

TIDRNX5.PDF (617 K)

Detailed schematic diagram for design layout and components

TIDRNX6.PDF (92 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRNX7.PDF (605 K)

Detailed overview of design layout for component placement

TIDRNX8.ZIP (4058 K)

Files used for 3D models or 2D drawings of IC components

TIDCCQ1.ZIP (2268 K)

Design file that contains information on physical board layer of design PCB

TIDRNX9.PDF (3814 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Fully differential amplifiers

THS4551Low Noise, Precision, 150MHz, Fully Differential Amplifier

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision op amps (Vos<1mV)

OPA376Precision (0.025mV), low noise (7.5nV/rtHz), low quiescent current (760uA) op amp

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Design guide High-Q Active Differential Band-Pass Filter Reference Design (Rev. A) Mar. 28, 2016
Application note Fully-Differential Amplifiers (Rev. E) Sep. 19, 2016
Application note Noise Analysis In Operational Amplifier Circuits (Rev. B) May 23, 2007

Related design resources

Hardware development

EVALUATION BOARD
ADS9110EVM-PDK ADS9110 18-Bit, 2MSPS, 15mW SAR ADC EVM Performance Demonstration Kit (PDK)

Reference designs

REFERENCE DESIGN
TIDA-00732 18-bit, 2-Msps Isolated Data Acquisition Reference Design to Achieve Maximum SNR and Sampling Rate TIDA-01035 20-bit Isolated Data Acquisition Reference Design Optimizing Jitter for Max SNR and Sample Rate TIDA-01037 20-bit, 1-MSPS Isolator Optimized Data Acquisition Reference Design Maximizing SNR and Sample Rate

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