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设置ldc1312_4_ldc1612_4和ldc1101传感器驱动器配置
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2016-12-05
张瑾
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TI’s multichannel inductance-to-digital converters (LDCs) LDC1612, LDC1614, LDC1312 and LDC1314 feature an adjustable sensor current-drive to set the sensor amplitude. The LDC1101, a high-speed
device, also has an equivalent set of controls. The optimal current-drive of these devices is sensordependent and is based on the sensor parallel resistance at the sensor resonant frequency, RP. A sensor
with a lower RP needs a higher current-drive than one with a higher RP. This application note explains how an appropriate IDRIVE setting can be selected by analyzing the sensor signal with an oscilloscope, which is usually the most straight-forward method.
device, also has an equivalent set of controls. The optimal current-drive of these devices is sensordependent and is based on the sensor parallel resistance at the sensor resonant frequency, RP. A sensor
with a lower RP needs a higher current-drive than one with a higher RP. This application note explains how an appropriate IDRIVE setting can be selected by analyzing the sensor signal with an oscilloscope, which is usually the most straight-forward method.
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