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Low-Power 3V ADC is 0.05% Linear

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Abstract: This application note describes using a microcontroller (µC) with integrated digital-to-analog converter (DAC) and comparators to create a low cost ADC that is 0.05% linear.
Maxim > App Notes > A/D and D/A Conversion/Sampling Circuits Amplifier and Comparator Circuits

Keywords: PWM, DAC, ADC, PIC, microcontroller, uc, MCU, low power, analog digital converter, digital analog Jul 09, 1998
converters, a/d d/a converter

APPLICATION NOTE 1031
Low-Power 3V ADC is 0.05% Linear


Abstract: This application note describes using a microcontroller (C) with integrated digital-to-analog
converter (DAC) and comparators to create a low cost ADC that is 0.05% linear.

The simple 3V analog-to-digital converter (ADC) shown in Figure 1 is very small, requires no negative supply or
expensive precision components, and draws minimal supply current (10A). A single conversion consists of
12,000 comparisons and takes about 300ms. The circuit operates as described below.




Fi……
标签:MaximPWMDACADCPICmicrocontrollerucMCUlowpoweranalogdigitalconverterdigitalanalogconvertersaddaconverter
Low-Power 3V ADC is 0.05% Linear
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