AD679AJ数据手册集成电路（IC）的模数转换器（ADC）规格书PDF

描述 Description

The AD679 is a complete, multipurpose 14-bit monolithic analog-to-digital converter, consisting of a sample-and-hold amplifier (SHA), a microprocessor-compatible bus interface, a voltage reference, and clock generation circuitry.

The AD679 is specified for ac (or dynamic) parameters such as S/N+D ratio, THD, and IMD, which are important in signal processing applications. In addition, the AD679K, B, and T
grades are fully specified for dc parameters that are important in measurement applications.

The 14 data bits are accessed in two read operations (8 + 6), with left justification. Data format is straight binary for unipolar mode and twos complement binary for bipolar mode. The input has a full-scale range of 10 V with a full power bandwidth of 1 MHz and a full linear bandwidth of 500 kHz. High input impedance (10 MΩ) allows direct connection to unbuffered
sources without signal degradation. Conversions can be initiated either under microprocessor control or by an external clock asynchronous to the system clock.

简介

AD679AJ属于集成电路（IC）的模数转换器（ADC）。由制造生产的AD679AJ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。