MAX5175数据手册集成电路（IC）的数模转换器（DAC）规格书PDF

描述 Description

The MAX5175/MAX5177 low-power, serial, voltage-output, 12-bit digital-to-analog converters (DACs) feature a precision output amplifier in a space-saving 16-pin QSOP package. The MAX5175 operates from a single +5V supply, and the MAX5177 operates from a single +3V supply. The output amplifier's inverting input is available to allow specific gain configurations, remote sensing, and high output current capability. This makes the MAX5175/MAX5177 ideal for a wide range of applications, including industrial process control. Both devices draw only 260µA of supply current, which reduces to 1µA in shutdown mode. In addition, the programmable power-up reset feature allows for a user-selectable output voltage state of either 0 or midscale.
The 3-wire serial interface is compatible with SPI™, QSPI™, and MICROWIRE™ standards. An input register followed by a DAC register provides a double-buffered input, allowing the registers to be updated independently or simultaneously with a 16-bit serial word. Additional features include software and hardware shutdown, shutdown lockout, a hardware reset pin, and a reference input capable of accepting DC and offset AC signals. These devices provide a programmable digital output pin for added functionality and a serial-data output pin for daisy-chaining. All logic inputs are TTL/CMOS compatible and are internally buffered with Schmitt triggers to allow direct interfacing to optocouplers.
The MAX5175/MAX5177 incorporate a proprietary on-chip circuit that keeps the output voltage virtually \"glitch free,\" limiting the glitches to a few millivolts during power-up.Both devices come in 16-pin QSOP packages and are specified for the extended (-40°C to +85°C) temperature range. The MAX5171/MAX5173 are 14-bit pin-compatible upgrades to the MAX5175/MAX5177. For pin-compatible DACs with an internal reference, see the 13-bit MAX5132/MAX5133 and 12-bit MAX5122/MAX5123.

特性 Features

• ±1 LSB INL
• 1µA Shutdown Current
• \"Glitch Free\" Output Voltage at Power-Up
• Single-Supply Operation
• +5V (MAX5175)
• +3V (MAX5177)
• Full-Scale Output Range
• +2.048V (MAX5177, VREF = +1.25V)
• +4.096V (MAX5175, VREF = +2.5V)
• Rail-to-Rail Output Amplifier
• Adjustable Output Offset
• Low THD (-80dB) in Multiplying Operation
• SPI/QSPI/MICROWIRE-Compatible 3-Wire Serial Interface
• Programmable Shutdown Mode and Power-Up Reset (0 or midscale)
• Buffered Output Capable of Driving 4-20mA or 5kΩ || 100pF Loads
• User-Programmable Digital Output Pin Allows Serial Control of External Components
• 14-Bit Upgrades Available (MAX5171/MAX5173)

应用 Application

• 数字增益与失调控制
• 数字可编程4mA至20mA电流环
• 通用产品
• 工业过程控制
• 运动控制
• 远端工业控制

简介

MAX5175属于集成电路（IC）的数模转换器（DAC）。由制造生产的MAX5175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。