ADS823中文资料10 位、60MSPS 模数转换器 (ADC)数据手册TI规格书

描述 Description

The ADS823 and ADS826 are pipeline, CMOS Analog-to-Digital Converters (ADCs) that operate from a single +5V power supply. These converters provide excellent performance with a single-ended input and can be operated with a differential input for added spurious performance. These high-performance converters include a 10-bit quantizer, high-bandwidth track-and-hold, and a high-accuracy internal reference. They also allow for disabling the internal reference and utilizing external references. This external reference option provides excellent gain and offset matching when used in multi-channel applications or in applications where full-scale range adjustment is required.

The ADS823 and ADS826 employ digital error correction techniques to provide excellent differential linearity for demanding imaging applications. Their low distortion and high SNR give the extra margin needed for medical imaging, communications, video, and test instrumentation. The ADS823 and ADS826 offer power dissipation of 265mW and also provide a power-down mode, thus reducing power dissipation to only 20mW.

The ADS823 and ADS826 are specified at a maximum sampling frequency of 60MHz and a single-ended input range of 1.5V to 3.5V. The ADS823 and ADS826 are available in an SSOP-28 package and are pin-compatible with the 10-bit, 40MHz ADS822 and ADS825, and the 10-bit, 75MHz ADS828.

特性 Features

• HIGH SNR: 60dB
• HIGH SFDR: 74dBFS
• LOW POWER: 265mW
• INTERNAL/EXTERNAL REFERENCE OPTION
• SINGLE-ENDED OR DIFFERENTIAL ANALOG INPUT
• PROGRAMMABLE INPUT RANGE
• LOW DNL: 0.25LSB
• SINGLE +5V SUPPLY OPERATION
• +3V/+5V LOGIC I/O COMPATIBLE (ADS826)
• POWER DOWN: 20mW
• SSOP-28 PACKAGE
• APPLICATIONS
• MEDICAL IMAGING
• COMMUNICATIONS
• CCD IMAGING
• VIDEO DIGITIZING
• TEST EQUIPMENT

简介

ADS823属于集成电路（IC）的模数转换器（ADC）。由TI制造生产的ADS823模数转换器（ADC）模数转换器（ADC、A/D 或 A 转 D）对模拟信号进行采样，例如由麦克风采集的声音或传感器的输出，然后将其转换为数字信号。一般来说，数字输出是二进制补码二进制数，与输入成比例。输入类型可能是差分、伪差分或单端输入。模数转换器可按照位数、采样率、输入数、接口、转换器数和架构（例如自适应增量、双斜率、折叠、流水线、SAR、三角积分、两步式）进行选择。