24-Bit Capacitance-to-Digital Converter with Temperature Sensor

GENERAL DESCRIPTION The AD7745/AD7746 are a high resolution, Σ-Δ capacitance-to-digital converter (CDC). The capacitance to be measured is connected directly to the device inputs. The architecture features inherent high resolution (24-bit no missing codes, up to 21-bit effective resolution), high

24位、单通道电容数字转换器

AD7745/AD7746均为高分辨率、Σ-Δ电容数字转换器（CDC），可直接与电容传感器的电容连接进行测量。该芯片还具有高分辨率（24位无失码、最高21位有效分辨率）、高线性度（±0.01%）和高精度（±4 fF工厂校准）等固有特性。AD7745/AD7746的电容输入范围是±4 pF（可变），同时可接受最大17 pF共模电容（不可变），后者可以通过一个可编程片内数字电容转换器（CAPDAC）来平衡。 AD7745拥有一个电容输入通道，AD7746则拥有两个通道。每个通道均可配置为单端输入或差分输入方式。AD7745/AD7746针对浮动式电容传感器而设计。若需一块极板接地 • 采用单芯片解决方案的新标准\n\n• 可与单一或差分浮动式传感器接口\n\n• 分辨率：最低4 aF（即最高21 ENOB）\n\n• 精度：4 fF\n\n• 线性度：0.01%\n\n• 共模（不可变）电容最大可达17 pF\n\n• 满量程（可变）电容范围：±4 pF\n\n• 耐受对地寄生电容：最大60 pF\n\n\n\n• 更新速率：10 Hz～90 Hz\n\n• 16 Hz时，50 Hz、60 Hz同时抑制\n\n• 片内温度传感器\n▪ 分辨率：0.1°C，精度：±2°C\n\n• 电压输入通道\n\n• 内部时钟振荡器\n\n• 双线式串行接口（I2C®兼容）\;

24-Bit Capacitance-to-Digital Converter with Temperature Sensor

GENERAL DESCRIPTION The AD7745/AD7746 are a high resolution, Σ-Δ capacitance-to-digital converter (CDC). The capacitance to be measured is connected directly to the device inputs. The architecture features inherent high resolution (24-bit no missing codes, up to 21-bit effective resolution), high

24-Bit Capacitance-to-Digital Converter with Temperature Sensor

GENERAL DESCRIPTION The AD7745/AD7746 are a high resolution, Σ-Δ capacitance-to-digital converter (CDC). The capacitance to be measured is connected directly to the device inputs. The architecture features inherent high resolution (24-bit no missing codes, up to 21-bit effective resolution), high

24-Bit Capacitance-to-Digital Converter with Temperature Sensor

GENERAL DESCRIPTION The AD7745/AD7746 are a high resolution, Σ-Δ capacitance-to-digital converter (CDC). The capacitance to be measured is connected directly to the device inputs. The architecture features inherent high resolution (24-bit no missing codes, up to 21-bit effective resolution), high

24-Bit Capacitance-to-Digital Converter with Temperature Sensor

GENERAL DESCRIPTION The AD7745/AD7746 are a high resolution, Σ-Δ capacitance-to-digital converter (CDC). The capacitance to be measured is connected directly to the device inputs. The architecture features inherent high resolution (24-bit no missing codes, up to 21-bit effective resolution), high

24-Bit Capacitance-to-Digital Converter with Temperature Sensor

GENERAL DESCRIPTION The AD7745/AD7746 are a high resolution, Σ-Δ capacitance-to-digital converter (CDC). The capacitance to be measured is connected directly to the device inputs. The architecture features inherent high resolution (24-bit no missing codes, up to 21-bit effective resolution), high

24-Bit Capacitance-to-Digital Converter with Temperature Sensor

GENERAL DESCRIPTION The AD7745/AD7746 are a high resolution, Σ-Δ capacitance-to-digital converter (CDC). The capacitance to be measured is connected directly to the device inputs. The architecture features inherent high resolution (24-bit no missing codes, up to 21-bit effective resolution), high

24-Bit Capacitance-to-Digital Converter with Temperature Sensor

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封装/外壳：16-TSSOP（0.173"，4.40mm 宽） 包装：管件 描述：IC CAP TO DGT CONV 24BIT 16TSSOP 集成电路（IC） ADC/DAC - 特殊用途

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