ADS822E/1K集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

ADS822E/1K属于集成电路（IC）的模数转换器（ADC）。由美国德州仪器公司制造生产的ADS822E/1K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。

FEATURES

HIGH SNR: 60dB

HIGH SFDR: 72dBFS

LOW POWER: 190mW

INTERNAL/EXTERNAL REFERENCE OPTION

SINGLE-ENDED OR

FULLY DIFFERENTIAL ANALOG INPUT

PROGRAMMABLE INPUT RANGE

LOW DNL: 0.5LSB

SINGLE +5V SUPPLY OPERATION

+3V OR +5V LOGIC I/O COMPATIBLE (ADS825)

POWER DOWN: 20mW

SSOP-28 PACKAGE

APPLICATIONS

MEDICAL IMAGING

TEST EQUIPMENT

COMPUTER SCANNERS

COMMUNICATIONS

VIDEO DIGITIZING

DESCRIPTION

The ADS822 and ADS825 are pipeline, CMOS Analog-to-Digital

Converters (ADC) 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 the user to disable the internal

reference and utilize external references. This external reference

option provides excellent gain and offset matching when used in

multichannel applications, or in applications where full-scale range

adjustment is required.

The ADS822 and ADS825 employ digital error correction techniques

to provide excellent differential linearity for demanding imaging applications.

Its low distortion and high SNR give the extra margin needed

for medical imaging, communications, video, and test instrumentation.

The ADS822 and ADS825 offer power dissipation of 190mW and also

provide a power-down mode, thus reducing power dissipation to only

20mW. The ADS825 is +3V or +5V logic I/O compatible.

The ADS822 and ADS825 are specified at a maximum sampling

frequency of 40MSPS and a single-ended input range of 1.5V to 3.5V.

The ADS822 and ADS825 are available in an SSOP-28 package and

are pin-for-pin compatible with the 10-bit, 60MSPS ADS823 and

ADS826, and the 10-bit, 75MSPS ADS828, providing an upgrade

path to higher sampling frequencies.