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产品分类
热卖产品

2.5 V 至 5.5 V、230 µA、双轨至轨电压输出 10 位 DAC
特价: 0
$3.60 - $6.40
/ 件
|
1 件(Min. Order)
1-99 件 $6.40
100-499 件 $6.20
500-999 件 $5.80
>=1000 件 $4.80
数量
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+
(1000 库存)
描述 常见问题 评价
描述

特点和优势

  • AD5313:1 个封装中的 2 个缓冲 10 位 DAC
    A版:±4 LSB INL
    B 版本:±2 LSB INL
  • AD5323:1 个封装中的 2 个缓冲 12 位 DAC
    版本:±16 LSB INL
    B 版:±8 LSB INL
  • 微功耗运行:5 V 时为 300 μA(包括参考电流)
  • 16 引脚 TSSOP 封装
  • 5 V 时断电至 200 nA,3 V 时为 50 nA
  • 2.5 V 至 5.5 V 电源
  • 双缓冲输入逻辑
  • 通过设计保证所有代码的单调性
  • 缓冲/非缓冲参考输入选项
  • 输出范围:0 V 至 V REF或 0 7 V 至 2 V REF
  • 上电复位至 0 V

产品详情

AD5313/AD5323 是双通道 8 位/10 位/12 位缓冲电压输出 DAC,采用 16 引脚 TSSOP 封装,采用 2.5 V 至 5.5 V 单电源供电,在 3 V 时消耗 230 μA。它们的片上输出放大器允许输出以 0.7 V/μs 的压摆率摆动轨到轨。 AD5313/AD5323 采用多功能 3 线串行接口,时钟频率高达 30 MHz,兼容标准 SPI、QSPI 、MICROWIRE 和 DSP 接口标准。

两个 DAC 的参考来自两个参考引脚(每个 DAC 一个)。这些参考输入可以配置为缓冲或非缓冲输入。这些部件包含一个上电复位电路,可确保 DAC 输出高达 0 V 的电源并保持该电压,直到对器件进行有效写入。还有一个异步低电平有效 CLR 引脚可将两个 DAC 清零至 0 V。两个 DAC 的输出可以使用异步 LDAC 输入同时更新。该器件包含断电功能,可将器件的电流消耗降低至 5 V 时 200 nA(3 V 时为 50 nA),并在断电模式下提供软件可选的输出负载。这些部件也可用于使用 SDO 引脚的菊花链应用。

这些部件在正常运行中的低功耗使其非常适合便携式电池供电设备。功耗在 5 V 时为 1.5 mW,在 3 V 时为 0.7 mW,在掉电模式下降至 1 μW。

应用

  • 便携式电池供电仪器
  • 数字增益和偏移调整
  • 可编程电压和电流源
  • 可编程衰减器
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