MAX514中文资料CMOS、四路、12位、串行输入乘法DAC数据手册ADI规格书

描述 Description

The MAX514 contains four 12-bit R-2R multiplying digital-to-analog converters (DACs), each with a serial-in parallel-out shift register, a DAC register, and control logic. The MAX514’s 3-wire serial interface design minimizes the number of package pins and internal level translators, so it uses less board space and dissipates less power (10mW max) than parallel-interface devices.
When used with microprocessors (µPs) with a serial port, the MAX514 minimizes digital-noise feedthrough from its logic input pins to its analog output. To further reduce noise, the µP serial port can be used as a dedicated analog bus and kept inactive while the MAX514 is in use. Serial interfacing also simplifies opto-coupler or transformer-isolated applications. This device uses low-tempco thin-film resistors, laser trimmed to ±1 LSB linearity, with gain accuracy better than ±1½ LSB. The MAX514 is specified with a +5V power supply. All logic inputs are TTL and CMOS compatible. It comes in space-saving 24-pin DIP and 28-pin SO packages.

特性 Features

• Four 12-Bit Accurate DACs
• Fast 3-Wire Serial Interface
• Low Differential Nonlinearity: at ±½ LSB Max
• Low Integral Nonlinearity: at ±1 LSB Max
• Gain Accuracy to at ±1½ LSB Max
• Low Gain Tempco: 5ppm/°C Max
• Operates from a Single +5V Power Supply
• TTL/CMOS Compatible
• Available in 24-Pin DIP and 28-Pin SO Packages

应用 Application

• µP控制系统
• 任意波形发生器(AWG)
• 自动测试设备
• 数字增益/失调调节
• 工业过程控制
• 运动控制系统
• 可编程放大器/衰减器

简介

MAX514属于集成电路（IC）的数模转换器（DAC）。由ADI制造生产的MAX514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。