20-Bit, Pin-Programmable, Low Power Sigma-Delta ADC

GENERAL DESCRIPTION The AD7781 is a complete, low power front-end solution for bridge sensor products, including weigh scales, strain gages, and pressure sensors. It contains a precision, low power, 20-bit sigma-delta (Σ-Δ) ADC, an on-chip, low noise programmable gain amplifier (PGA), and an on-c

文件：394.33 Kbytes 页数：16 Pages

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20-Bit, Pin-Programmable Low Power Sigma-Delta ADC

文件：326.94 Kbytes 页数：17 Pages

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20位、引脚可编程的超低功耗Σ−Δ型ADC

AD7781是一款完整的低功耗前端解决方案，适用于桥式传感器产品，包括电子秤、应变计和压力传感器。它内置一个精密、低功耗、20位Σ-Δ型ADC，一个片内低噪声可编程增益放大器(PGA)，以及一个片内振荡器。\n\n AD7781功耗仅为330 μA，因此特别适合要求极低功耗的便携式或电池供电产品。该器件还提供省电模式，不执行转换时，用户可以切断对桥式传感器的供电，并使该器件进入省电模式，从而延长产品的电池使用时间。\n\n 为便于使用，AD7781的所有特性均由专用引脚控制。每次发生数据读取操作时，8个状态位便会附加到20位转换结果上。这些状态位含有一个码序列，可用来确认串 • 引脚可编程的滤波器响应\n更新速率：10 Hz或16.7 Hz \n\n• 引脚可编程的仪表放大器增益\n\n• 引脚可编程省电和复位功能 \n\n• 状态功能 \n\n\n\n• 内部时钟振荡器\n\n• 内部电桥关断开关 \n\n• 电流:\n115 μA（典型值，G = 1）\n330 μA（典型值，G = 128）\n\n• 50 Hz/60 Hz同时抑制 \n\n• 欲了解更多特性，请参考数据手册;

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20-Bit, Pin-Programmable, Low Power Sigma-Delta ADC

GENERAL DESCRIPTION The AD7781 is a complete, low power front-end solution for bridge sensor products, including weigh scales, strain gages, and pressure sensors. It contains a precision, low power, 20-bit sigma-delta (Σ-Δ) ADC, an on-chip, low noise programmable gain amplifier (PGA), and an on-c

文件：394.33 Kbytes 页数：16 Pages

AD

亚德诺

20-Bit, Pin-Programmable, Low Power Sigma-Delta ADC

GENERAL DESCRIPTION The AD7781 is a complete, low power front-end solution for bridge sensor products, including weigh scales, strain gages, and pressure sensors. It contains a precision, low power, 20-bit sigma-delta (Σ-Δ) ADC, an on-chip, low noise programmable gain amplifier (PGA), and an on-c

文件：394.33 Kbytes 页数：16 Pages

AD

亚德诺

20-Bit, Pin-Programmable, Low Power Sigma-Delta ADC

GENERAL DESCRIPTION The AD7781 is a complete, low power front-end solution for bridge sensor products, including weigh scales, strain gages, and pressure sensors. It contains a precision, low power, 20-bit sigma-delta (Σ-Δ) ADC, an on-chip, low noise programmable gain amplifier (PGA), and an on-c

文件：394.33 Kbytes 页数：16 Pages

AD

亚德诺

20-Bit, Pin-Programmable, Low Power Sigma-Delta ADC

GENERAL DESCRIPTION The AD7781 is a complete, low power front-end solution for bridge sensor products, including weigh scales, strain gages, and pressure sensors. It contains a precision, low power, 20-bit sigma-delta (Σ-Δ) ADC, an on-chip, low noise programmable gain amplifier (PGA), and an on-c

文件：394.33 Kbytes 页数：16 Pages

AD

亚德诺

20-Bit, Pin-Programmable, Low Power Sigma-Delta ADC

GENERAL DESCRIPTION The AD7781 is a complete, low power front-end solution for bridge sensor products, including weigh scales, strain gages, and pressure sensors. It contains a precision, low power, 20-bit sigma-delta (Σ-Δ) ADC, an on-chip, low noise programmable gain amplifier (PGA), and an on-c

文件：394.33 Kbytes 页数：16 Pages

AD

亚德诺

20-Bit, Pin-Programmable, Low Power Sigma-Delta ADC

GENERAL DESCRIPTION The AD7781 is a complete, low power front-end solution for bridge sensor products, including weigh scales, strain gages, and pressure sensors. It contains a precision, low power, 20-bit sigma-delta (Σ-Δ) ADC, an on-chip, low noise programmable gain amplifier (PGA), and an on-c

文件：394.33 Kbytes 页数：16 Pages

AD

亚德诺

20-Bit, Pin-Programmable, Low Power Sigma-Delta ADC

GENERAL DESCRIPTION The AD7781 is a complete, low power front-end solution for bridge sensor products, including weigh scales, strain gages, and pressure sensors. It contains a precision, low power, 20-bit sigma-delta (Σ-Δ) ADC, an on-chip, low noise programmable gain amplifier (PGA), and an on-c

文件：394.33 Kbytes 页数：16 Pages

AD

亚德诺