MAX513中文资料低成本、3通道、8位、电压输出DAC，串行接口数据手册ADI规格书

描述 Description

The MAX512/MAX513 contain three 8-bit, voltage-output digital-to-analog converters (DAC A, DAC B, and DAC C). Output buffer amplifiers for DACs A and B provide voltage outputs while reducing external component count. The output buffer for DAC A can source or sink 5mA to within 0.5V of VDD or VSS. The buffer for DAC B can source or sink 0.5mA to within 0.5V of VDD or VSS. DAC C is unbuffered, providing a third voltage output with increased accuracy. The MAX512 operates with a single +5V ±10% supply, and the MAX513 operates with a +2.7V to +3.6V supply. Both devices can also operate with split supplies.
The 3-wire serial interface has a maximum operating frequency of 5MHz and is compatible with SPI™, QSPI™, and Microwire™. The serial input shift register is 16 bits long and consists of 8 bits of DAC input data and 8 bits for DAC selection and shutdown. DAC registers can be loaded independently or in parallel at the positive edge of CS. A latched logic output is also available for auxiliary control.
Ultra-low power consumption and small packages (14-pin DIP/SO) make the MAX512/MAX513 ideal for portable and battery-powered applications. Supply current is only 1mA, dropping to less than 1µA in shutdown. Any of the three DACs can be independently shut down. In shutdown mode, the DAC's R-2R ladder network is disconnected from the reference input, minimizing system power consumption.

特性 Features

• Operate from a Single +5V (MAX512) or +3V (MAX513) Supply, or from Bipolar Supplies
• Low Power Consumption
• 1mA Operating Current•
• Unipolar or Bipolar Outputs
• 5MHz, 3-Wire Serial Interface
• SPI, QSPI, and Microwire Compatible
• Two Buffered, Bipolar-Output DACs (DACs A/B)
• Independently Programmable Shutdown Mode
• Space-Saving 14-Pin SO/DIP Packages
• Pin and Software Reset

应用 Application

• 数字增益与失调控制
• 可编程衰减器
• 可编程电流源
• 可编程电压源
• 射频数字调节偏置电路
• VCO调谐

简介

MAX513属于集成电路（IC）的数模转换器（DAC）。由制造生产的MAX513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。