Bandpass-filtered -40-dB attenuator, less than 0.1-dB error reference design


Design files


This verified design is a -40dB band-pass filtered inverting attenuator. The circuit creates a filtered, inverted, and attenuated output from a single-ended input signal that can be used for test and measurement, or other waveform generation applications. A single low-noise OPA1611 op amp is used to invert, attenuate, and filter the input signal. The low-noise and low-distortion performance of the OPA1611 allows for a very accurate and clean output signals.

  • -40dB Filtered signal output
  • 0.1dB Flatband Accuracy
  • Low-Noise output from OPA1611
This verified design includes:
  • Theory
  • Component Selection
  • TINA-TI Simulation
  • Schematics and PCB Layout
  • Verification and Measured Performance
  • Modification Options
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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.

TIDR215.PDF (123 K)

Detailed schematic diagram for design layout and components

SLAC588.ZIP (730 K)

Detailed schematic diagram for design layout and components

TIDR216.PDF (72 K)

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

TIDC164.ZIP (289 K)

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

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Technical documentation

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Type Title Date
* User guide TIPD118 Verified Design Reference Guide Jun. 18, 2013

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Design tools & simulation

TINA-TI SPICE-based analog simulation program

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