ADS7822UC/2K5集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

ADS7822UC/2K5属于集成电路（IC）的模数转换器（ADC）。由德州仪器制造生产的ADS7822UC/2K5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。

1FEATURES

2· 200kHz Sampling Rate

· microPower:

1.6mW at 200kHz

0.54mW at 75kHz

0.06mW at 7.5kHz

· Power Down: 3μA max

· Mini-DIP-8, SO-8, and MSOP-8 Packages

· Pseudo-Differential Input

· Serial Interface

APPLICATIONS

· Battery-Operated Systems

· Remote Data Acquisition

· Isolated Data Acquisition

· Simultaneous Sampling, Multichannel Systems

DESCRIPTION

The ADS7822 is a 12-bit sampling analog-to-digital

(A/D) converter with ensured specifications over a

2.7V to 5.25V supply range. It requires very little

power even when operating at the full 200kHz rate. At

lower conversion rates, the high speed of the device

enables it to spend most of its time in the

power-down mode—the power dissipation is less

than 60μW at 7.5kHz.

The ADS7822 also features operation from 2.0V to

5V, a synchronous serial interface, and a

pseudo-differential input. The reference voltage can

be set to any level within the range of 50mV to VCC.

Ultra low power and small size make the ADS7822

ideal for battery-operated systems. It is also a perfect

fit for remote data-acquisition modules, simultaneous

multichannel systems, and isolated data acquisition.

The ADS7822 is available in a plastic mini-DIP-8, an

SO-8, or an MSOP-8 package.