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ADS121x ANALOG-DIGITAL CONVERT
消耗积分:2 |
格式:rar |
大小:433 |
2009-09-08
吴藩
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ADS121x ANALOG-DIGITAL CONVERTER APPLICATIONS PRIMER:The analog portion of these delta-sigma converters includes
the signal input, the bias voltage, and the voltage reference.
The input stage is differential with an absolute range from
GND to AVDD at the device input pins. VBIAS is a voltage
generated by the device to allow the input signal range to be
extended to ±10V by adding an external resistor network.
VREF is the voltage that determines the device full-scale
range and, therefore, the voltage of the least significant bit (LSB).
the signal input, the bias voltage, and the voltage reference.
The input stage is differential with an absolute range from
GND to AVDD at the device input pins. VBIAS is a voltage
generated by the device to allow the input signal range to be
extended to ±10V by adding an external resistor network.
VREF is the voltage that determines the device full-scale
range and, therefore, the voltage of the least significant bit (LSB).
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