MCP4822数据手册集成电路（IC）的数模转换器（DAC）规格书PDF

描述 Description

MCP4822 is a dual channel 12-bit Digital-to-Analog converter (DAC) with internal voltage reference. This device offers high accuracy and low power consumption, and is available in various packages. Communication with the device is accomplished via a simple serial interface using SPI protocols. This device is a part of the MCP4802/MCP4812/MCP4822 product family, which are dual channel 8-bit/10-bit/12-bit DACs with internal voltage reference (VREF). These devices provide very high accuracy and low noise performance, and are suitable for consumer and industrial applications, such as set point control, offset adjustment and sensor calibration applications. The low power consumption and small package options make these devices very attractive for many portable and battery-powered applications. If one output is needed then the MCP4801/4811/4821 single channel product family can be used.

特性 Features

12-bit Resolution
Dual Channel Voltage Output
2.7V to 5.5V Operation
Operating Current 415 µA (typ)
Internal Voltage Reference 2.048V
Selectable Unity or 2x Gain Output
INL ±2 LSB (typ)
DNL ±0.75 LSB (max)
Output Settling Time 4.5 µs
SPI Interface
8-pin PDIP, SOIC, MSOP packages
Temperature Range -40°C to +125°C
AEC-Q100 Grade 1 qualified

简介

MCP4822属于集成电路（IC）的数模转换器（DAC）。由制造生产的MCP4822数模转换器（DAC）数模转换器（DAC、D/A、D2A 或 D 转 A）可将数字信号转换为缓冲或无缓冲的模拟电压或电流。DAC 架构是否适合特定应用，要取决于分辨率和采样频率。DAC 通常用于音乐播放器，将数字数据流转换为模拟音频流。它们还用于电视和手机，将数字视频数据转换为模拟视频信号，再连接到屏幕驱动器，以显示单色或彩色图像。