WebAD7745 and AD7746 are designed for floating capacitive sensors, meaning neither trace on the capacitive sensor input pins is grounded. Of these, the AD7745 allows for one channel of conversion, while the AD7746 allows for two (identical otherwise). Either channel can be setup as a single-ended or differential input channel. WebAD7705模数芯片原理详解. AD7705是AD公司的一款新型16位AD转换器。. 该器件包括由放大器(PGA)和缓冲器组成的前端模拟调节电路、可编程数字滤波器、调制器。. 可以通过传感器直接测量多通道小信号进行AD转换,适用于直流和低频交流信号测量应用。. …
AD7745-7746中文数据手册.pdf - 原创力文档
WebThe AD7745 / AD7746 are designed for floating capacitive sensors. For capacitive sensors with one plate connected to ground, the AD7747 is recommended. The parts have an on-chip temperature sensor with a resolution of 0.1°C and accuracy of ±2°C. The on-chip voltage reference and the on-chip clock generator eliminate the need for any external ... WebThe 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 fea-tures inherent high resolution (24-bit no missing codes, up to 21-bit effective resolution), high linearity (±0.01%), and high accuracy (±4 fF factory calibrated). hong minyoung architecture
请问如何用stm32获取AD7746数据 - STM32/STM8技术论坛 - 电 …
WebJan 24, 2024 · AD7705模数转换芯片工作原理. AD7705是AD公司的一款新型16位AD转换器。. 该器件包括由放大器(PGA)和缓冲器组成的前端模拟调节 电路 、可编程数字滤波器、调制器。. 可以通过传感器直接测量多通道小信号进行AD转换,适用于直流和低频交流信号测量应用。. 它 ... Webad7745容性输入经过出厂校准,因此输入范围为0 pf至4.096 pf(单端模式),以及±4.096 pf(差分模式)。ad7745集成内部capdac,允许调节输入共模电容。 capdac用作负电容,通过内部连接至cin1±引脚。有两个独立的capdac,一个连接到cin1(+),另一个连接到cin1(−)。 Web输出数据速率可以从9.1 sps调节到90.9 sps,在16.1 sps设置速率下提供对50Hz和60Hz电力线噪声的高度抑制。. CDC还提供分辨率为0.1°C、精度为±2°C的温度测量,以执行温度补偿和系统校准。. CN0552兼容I 2 C Pmod平台板,具有2.7 V至5.5 V I/O电压。. 图 1. CN0552 … hongmoon training uniform