ADS7808U/1K集成电路（IC）的模数转换器（ADC）规格书PDF中文资料

ADS7808U/1K属于集成电路（IC）的模数转换器（ADC）。由德州仪器制造生产的ADS7808U/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

100kHz SAMPLING RATE

72dB SINAD WITH 45kHz INPUT

±1/2 LSB INL AND DNL

SIX SPECIFIED INPUT RANGES

SERIAL OUTPUT

SINGLE +5V SUPPLY OPERATION

PIN-COMPATIBLE WITH 16-BIT ADS7809

USES INTERNAL OR EXTERNAL

REFERENCE

100mW MAX POWER DISSIPATION

0.3 SO-20

SIMPLE DSP INTERFACE

DESCRIPTION

The ADS7808 is a complete 12-bit sampling analog-to-digital

using state-of-the-art CMOS structures. It contains a 12-bit

capacitor-based SAR A/D with S/H, reference, clock, and a

serial data interface. Data can be output using the internal

clock, or can be synchronized to an external data clock. The

ADS7808 also provides an output synchronization pulse for

ease of use with standard DSP processors.

The ADS7808 is specified at a 100kHz sampling rate, and

specified over the full temperature range. Laser-trimmed

scaling resistors provide various input ranges including ±10V

and 0V to 5V, while an innovative design operates from a

single +5V supply, with power dissipation under 100mW.

The ADS7808 is available in a 0.3 SO-20, fully specified for

operation over the industrial –40°C to +85°C range.