MCP48FVB22中文资料12-Bit Dual Output DAC with SPI数据手册Microchip规格书

描述 Description

MCP48FVB22 is a dual channel 12-bit, voltage output Digital-to-Analog Converter with volatile memory and an SPI compatible serial interface. This device provides four different voltage reference options: device VDD, external VREF (buffered or unbuffered) and internal bandgap. It offers high AC performance, low power consumption and fast settling time, which makes it suitable for consumer and industrial applications, such as set point control, offset adjustment and sensor calibration applications, and portable instruments. For different resolutions and number of output channels, please check out our other parts in the MCP48FVBxx family.

特性 Features

12-bit Resolution
Rail-to-Rail Output
Fast Settling Time: 7.8 µs (typ)
Single-Supply Operation: 2.7V to 5.5V
SPI Interface
10-lead MSOP Package
Power On/Brown-out Reset Protection
Extended Temperature Range: -40°C to +125°C
Voltage Reference Options:
Device VDD
External VREF (buffered or unbuffered)
Internal Bandgap (1.22V typ)
Output Gain Options
Unity (1x)
2x
Power Down Modes
Disconnects output buffer (High Impedance)
Selection of VOUT pull-down resistors (100 kΩ or 1 kΩ)
Low Power Consumption
Normal Operation: 380µA
Power Down Operation: 650nA (typ)

简介

MCP48FVB22属于集成电路（IC）的数模转换器（DAC）。由制造生产的MCP48FVB22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。