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Maxim产品 - MAX5172介绍

MAX5172 - 低功耗、串行、14位DAC，电压输出

MAX5172是Maxim美信半导体公司的一款数据转换器和采样-保持电路产品，MAX5172是低功耗、串行、14位DAC，电压输出，本站介绍了MAX5172的封装应用图解、特点和优点、功能等，并给出了与MAX5172相关的Maxim元器件型号供参考。

MAX5172 - 低功耗、串行、14位DAC，电压输出 - 数据转换器和采样-保持电路 - 性能最佳的14位DAC，上电干扰最小，具有1 LSB INL - 美信半导体

产品概述

The MAX5170/MAX5172 low-power, serial, voltage-output, 14-bit digital-to-analog converters (DACs) feature a precision output amplifier in a space-saving 16-pin QSOP package. The MAX5170 operates from a +5V single supply and the MAX5172 operates from a +3V single supply. Both devices draw only 280µA of supply current, which reduces to 1µA in shutdown. In addition, the programmable power-up reset feature allows for a user-selectable power-up output voltage 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 input and DAC registers to be updated independently or simultaneously with a 16-bit serial word. Additional features include software and hardware shutdown, shutdown lockout, a hardware clear 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 MAX5170/MAX5172 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 are available in 16-pin QSOP packages and are specified for the extended (-40°C to +85°C) temperature range. For 100% pin-compatible Dacs with internal reference, see the 13-bit MAX5130/MAX5131 and the 12-bit MAX5120/MAX5121 data sheets.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • ±1 LSB INL
  • 1µA Shutdown Current
  • "Glitch Free" Output Voltage at Power-Up
  • Single-Supply Operation
  • +5V (MAX5170)
  • +3V (MAX5172)
  • Full-Scale Output Range
  • +2.048V (MAX5172, VREF = +1.25V)
  • +4.096V (MAX5170, 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 5kΩ || 100pF Loads
  • User-Programmable Digital Output Pin Allows Serial Control of External Components
  • Pin-Compatible Upgrade to the 12-Bit MAX5174/MAX5176
    • 热门应用
  • µP控制系统
  • 自动测试设备(ATE)
  • 数字增益与失调调节
  • 工业过程控制
  • 运动控制
  • 远端工业控制
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