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MAX1368
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Category:Step-down DC/DC conversion
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Product Name:Interface of microcontroller, 4.5-/3.5-Digit panel meter 4-20mA output
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Manufacturers:MAXIM
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Production Batch Number:11+
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Encapsulation:QFP48
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Stock Status:There is stock
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Stock Quantity:9000
- Minimum order quantity: 1
- Details:
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MAX1368 微控制器的接口，4.5-/3.5-Digit面板仪表4-20mA输出
description
MAX1366/MAX1368低功耗，4.5和3.5位面板米，设有一个集成的Σ-Δ模拟到数字转换器（ADC），LED显示驱动器，电压数字 - 模拟转换器（DAC），以及4-20mA（或0到16毫安），电流驱动器。
MAX1366/MAX1368的模拟输入电压范围为±2V或±200mV可编程。 MAX1368驱动3.5位（±1999计数）显示和MAX1366驱动4.5位（±19,999计数）显示。 ADC输出直接驱动LED显示屏，以及电压的DAC，这反过来，驱动4-20mA（或0到16毫安），电流环路输出。
在正常操作中，在0至16mA/4-20mA电流环路输出±2V或±200mV模拟输入驱动远程面板表显示，数据记录器，以及其他工业控制器。 为了增加灵活性，MAX1366/MAX1368允许直接访问ADC结果，DAC输出的V / I转换器输入。
Σ-ΔADC不需要外部精密积分电容，自动调零电容，晶体振荡器，电荷泵，或其他电路常用的双斜率ADC面板表电路的要求。 芯片上的模拟输入和参考缓冲器，允许使用高阻抗信号源直接接口。 出色的共模抑制和数字滤波提供大于100dB的同时50Hz和60Hz电源噪声排斥。 Other features include data hold, peak detection, and overrange/underrange detection.
MAX1366/MAX1368需要一个2.7V至5.25V的电源，以5.75VV 4.75V /我的供应，并在7V至30V回路供电。 他们是在节省空间（采用7mm x 7mm），48引脚TQFP封装，并在扩展操作（-40℃至+85℃）温度范围。
Key features
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微控制器（μC）接口，数字面板表
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20位Σ-Δ型ADC
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4.5位分辨率（±19,999计数，MAX1366）
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3.5位分辨率（±1999计数，MAX1368）
- 没有整合/自动调零电容
- 100MΩ输入阻抗
- ±200mV或±2.000V的输入范围
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LED显示屏
- 共阴极7段LED驱动器
- 可编程LED电流（0至20mA）
- 2.5赫兹更新率
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输出DAC和电流驱动器
- ±15位DAC，14位线性V / I转换
- 可选择0至16毫安或4-20mA电流输出
- 单极/双极模式
- ±50μA零刻度，±40ppmFS /°C（典型值）
- ±0.5％的增益误差，±25ppmFS /°C（典型值）
- 单独7V至30V的电源电流环路输出
- 2.7V至5.25V ADC / DAC的电源
- 4.75V至5.25VV / I转换器供应
- 2.048V的内部基准或外部基准
- SPI™-/QSPI™-/MICROWIRE™兼容的串行接口
- 48引脚，7mm x 7mm TQFP封装
Application/Purpose
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Automatic Test Equipment (ATE)
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Data acquisition system
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Digital multimeter
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Digital panel table
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Digital voltmeter
- Industrial process control
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