返回Analog Devices Inc.

Analog Devices Inc. AD5689 双通道16位nanoDAC+

Analog Devices AD5689双通道16位nanoDAC+ 属于 nanoDAC+™ 系列产品，是一款低功耗、双通道、16位缓冲电压输出数模转换器（DAC）。内置增益选择引脚，满量程输出为2.5V（增益 = 1）或5V（增益 = 2）。它采用2.7V至5.5V单电源供电，通过设计保证单调性，并具有小于0.1%FSR的增益误差和1.5mV的失调误差性能。AD5689还内置有一个上电复位电路和一个RSTSEL引脚，确保DAC输出上电至零电平或中量程，直到执行一次有效的写操作为止。此外所有器件均具有各通道独立掉电特性，在掉电模式下，器件在3 V时的功耗降至4μA。

The AD5689/AD5689R DAC also incorporates a power-on reset circuit and a RSTSEL pin to ensure the DAC outputs power up to zero scale or midscale and remain there until a valid write takes place. Analog Devices AD5689/AD5689R Dual 16-Bit nanoDAC+ contain a per-channel power-down feature that reduces the current consumption of the device to 4μA at 3V while in power-down mode.

特性

  • High relative accuracy (INL): ±2LSB maximum at 16 bits
  • Tiny package: 3mm × 3mm, 16-lead LFCSP
  • TUE: ±0.1% of FSR maximum
  • Offset error: ±1.5mV maximum
  • Gain error: ±0.1% of FSR maximum
  • High drive capability: 20mA, 0.5V from supply rails
  • User-selectable gain of 1 or 2 (GAIN pin)
  • Reset to zero scale or midscale (RSTSEL pin)
  • 1.8V logic compatibility
  • 50kHz SPI with readback or daisy chain
  • Low glitch: 0.5nV-sec
  • Robust 4kV HBM and 1.5 kV FICDM ESD ratings
  • Low power: 3.3mW at 3V
  • 1.8V to 5.5V power supply
  • −40°C to +105°C temperature range

应用

  • Optical transceivers
  • Base station power amplifiers
  • Process control (PLC I/O cards)
  • Industrial automation
  • Data acquisition system
发布日期: 2013-08-05 | 更新日期: 2022-03-11