ADS821中文資料10 位、40MSPS 模數(shù)轉(zhuǎn)換器 (ADC)數(shù)據(jù)手冊TI規(guī)格書

描述 Description

The ADS821 is a low-power, monolithic 10-bit, 40MHz Analog-to-Digital (A/D) converter utilizing a small geometry CMOS process. This complete converter includes a 10-bit quantizer with internal track-and-hold, reference, and a power down feature. It operates from a single +5V power supply and can be configured to accept either differential or single-ended input signals. The ADS821 employs digital error correction to provide excellent Nyquist differential linearity performance for demanding imaging applications. Its low distortion, high SNR, and high oversampling capability give it the extra margin needed for telecommunications and video applications. This high-performance converter is specified for ac and DC performance at a 40MHz sampling rate. The ADS821 is available in an SO-28 package.

特性 Features

? NO MISSING CODES
? INTERNAL REFERENCE
? LOW POWER: 380mW
? HIGH SNR: 58dB
? INTERNAL TRACK-AND-HOLD
? APPLICATIONS
? VIDEO DIGITIZING
? ULTRASOUND IMAGING
? GAMMA CAMERAS
? SET-TOP BOXES
? CABLE MODEMS
? CCD IMAGING
? Color Copiers
? Scanners
? Camcorders
? Security Cameras
? Fax Machines

? IF AND BASEBAND DIGITIZATION
? TEST INSTRUMENTATION

簡介

ADS821屬于集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）。由TI制造生產(chǎn)的ADS821模數(shù)轉(zhuǎn)換器（ADC）模數(shù)轉(zhuǎn)換器（ADC、A/D 或 A 轉(zhuǎn) D）對模擬信號進(jìn)行采樣，例如由麥克風(fēng)采集的聲音或傳感器的輸出，然后將其轉(zhuǎn)換為數(shù)字信號。一般來說，數(shù)字輸出是二進(jìn)制補碼二進(jìn)制數(shù)，與輸入成比例。輸入類型可能是差分、偽差分或單端輸入。模數(shù)轉(zhuǎn)換器可按照位數(shù)、采樣率、輸入數(shù)、接口、轉(zhuǎn)換器數(shù)和架構(gòu)（例如自適應(yīng)增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進(jìn)行選擇。