MCP4921中文资料12-Bit Single Output DAC with SPI数据手册Microchip规格书

描述 Description

MCP4921 is a single channel, 12-bit DAC with an external voltage reference pin and SPI interface. It offers high accuracy and low power consumption and is available in various packages. This device is a part of the MCP4901/MCP4911/MCP4921 product family, which are single channel 8-bit/10-bit/12-bit DACs which use an external 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 two outputs are needed then the MCP4902/4912/4922 dual channel product family can be used.

特性 Features

12-bit Resolution
Single Channel Voltage Output
2.7V to 5.5V Operation
Operating Current 175µA (typ)
External Voltage Reference Pin
INL ±2 LSB (typ)
DNL ±0.75 LSB (max)
Output Settling Time 4.5 µs
SPI Interface
8-pin PDIP, SOIC, MSOP and 2x3 DFN packages
Temperature Range -40°C to +125°C
AEC-Q100 Grade 1 qualified

简介

MCP4921属于集成电路（IC）的数模转换器（DAC）。由制造生产的MCP4921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。