類比前端

類比前端（analog front-end，簡稱AFE），也稱為類比前端控制器（analog front-end controller，簡稱AFEC）是為了特定應用所開發的類比信號調整電路，其中包括感測用的類比放大器（多半是運算放大器）、濾波電路，也有可能有針對感測器的特殊應用積體電路、射頻接收器，其目的是提供可以組態，可調整的電子功能方塊，可以做為天線感測器、類比數位轉換器甚至是单片机的界面電路。

無線電接收器中的射頻類比前端有時也會稱為射頻前端（英语：RF front end）^[1]。

在許多的類比系統和數位系統中，會使用類比前端硬體模組做為介面電路，提供硬體的模組化。有許多IC廠商有針對不同的應用製作類比前端晶片，例如德州仪器針對健康監控的類比前端晶片ADS1298、AFE4400和AFE4490^[2]^[3]。Atmel有針對智慧型電表的類比前端晶片^[4]。亚德诺半导体也針對測試和量測應用開發了CN0209類比前端晶片^[5]。

[1]
Christopher Bowick. What's in an RF Front End?. EE Times. February 4, 2008 [October 3, 2013].
[2]
Treena Grevatt. Inside TI's ADS1298 analog front end for health monitoring. EE Times. August 9, 2012 [October 3, 2013].
[3]
AFE4400: Integrated Analog Front End for Heart Rate Monitors and Low Cost Pulse Oximeters. Product web page. Texas Instruments. [October 3, 2013].
[4]
Atmel Acquires IDT's Smart Metering Product Line. Product web page. Atmel. [October 3, 2013].
[5]
CN0209: Fully Programmable Universal Analog Front End for Process Control Applications. Product web page. Analog Devices. [October 3, 2013].

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[1] [1]
Christopher Bowick. What's in an RF Front End?. EE Times. February 4, 2008 [October 3, 2013].

[2] [2]
Treena Grevatt. Inside TI's ADS1298 analog front end for health monitoring. EE Times. August 9, 2012 [October 3, 2013].

[3] [3]
AFE4400: Integrated Analog Front End for Heart Rate Monitors and Low Cost Pulse Oximeters. Product web page. Texas Instruments. [October 3, 2013].

[4] [4]
Atmel Acquires IDT's Smart Metering Product Line. Product web page. Atmel. [October 3, 2013].

[5] [5]
CN0209: Fully Programmable Universal Analog Front End for Process Control Applications. Product web page. Analog Devices. [October 3, 2013].

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類比前端

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參考資料