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Low noise and low Cost Neural Amplifiers

Abstract : Extracellular neural signal acquisition requires low noise, high gain, low power, and low cost amplifiers. This pa- per presents amplifiers with a simple architecture that ensures a good compromise among these characteristics. We present three amplifiers based on the same architecture, in which the first stage is a differential pair, respectively based on HBT, NMOS or PMOS transistors. The HBT-based solution presents the lowest intrinsic noise, followed by the NMOS solution. We use Monte Carlo simulation to validate the robustness of am- plifiers' characteristics of technological dispersions.
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Submitted on : Monday, June 16, 2008 - 5:13:14 PM
Last modification on : Thursday, January 11, 2018 - 6:21:07 AM


  • HAL Id : hal-00288402, version 1


Guilherme Bontorin, Jean Tomas, Sylvie Renaud. Low noise and low Cost Neural Amplifiers. Int. Conf. on Electronics, Circuits and Systems (ICECS'2007),, Dec 2007, Marrakech, Morocco. pp.1324-1327. ⟨hal-00288402⟩



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