MAX5270B中文资料八通道、13位、电压输出DAC，并行接口数据手册ADI规格书

描述 Description

The MAX5270 contains eight 13-bit, voltage-output digital-to-analog converters (DACs). On-chip precision output amplifiers provide the voltage outputs. The device operates from +12V/-12V supplies. Its output voltage swing ranges from 0V to +8.192V and is achieved with no external components. The MAX5270 has three pairs of differential reference inputs; two of these pairs are connected to two DACs each, and a third pair is connected to four DACs. The references are independently controlled, providing different full-scale output voltages to the respective DACs. The MAX5270 operates within the following voltage ranges: VDD = +11.4V to +12.6V, VSS = -11.4V to -12.6V, and VCC = +4.75V to +5.25V.
The MAX5270 features double-buffered interface logic with a 13-bit parallel data bus. Each DAC has an input latch and a DAC latch. Data in the DAC latch sets the output voltage. The eight input latches are addressed with three address lines. Data is loaded to the input latch with a single write instruction. An asynchronous load input (active-low LD) transfers data from the input latch to the DAC latch. The active-low LD input controls all DACs; therefore, all DACs can be updated simultaneously by asserting the LD-bar pin. An asynchronous active-low CLR input sets the output of all eight DACs to the respective DUTGND input of the op amp. Note that active-low CLR is a CMOS input, which is powered by VDD. All other logic inputs are TTL/CMOS compatible. The \"A\" grade of the MAX5270 has a maximum INL of ±2LSBs, while the \"B\" grade has a maximum INL of ±4LSBs. Both grades are available in 44-pin MQFP packages.

特性 Features

• 8 DACs in a Single Package
• Voltage Swing Between 0V and 8.192V
• Drives up to 10,000pF Capacitive Load
• Low Power Consumption: 10mA (typ)
• Double-Buffered Digital Inputs
• Asynchronous CLR-bar Forces All DACs to DUTGND Potential

应用 Application

• 任意函数发生器
• 航空电子与军用系统
• 工业过程控制
• SONET应用

简介

MAX5270B属于集成电路（IC）的数模转换器（DAC）。由制造生产的MAX5270B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。