AN2834 Application note How to optimize the ADC accuracy in the STM32 MCUs Introduction STM32 MCUs embed advanced 12-bit to 16-bit ADCs depending on the device. A self- calibration feature is provided to enhance ADC accuracy versus environmental condition changes. In applications involving...
The measured accuracy error of the device improved tremendously to -0.04% as if the input had a low-impedance source (Figure 6) by installing a high external capacitance at channel 2 (CEXT = 0.1µF) at the analog input of the MAX11613 ADC. The high capacitance of ...
A total of 50 data points are gathered to calculate the rms noise.The ADR1001 serves as the reference for this experiment.Table 1 shows the measured noise of the four boards.The ADA4523-1 board has a lower noise performance than the ADA4522 board. The noise of the ADA4523-1 board ...
the meter is expected to display a reading of 1.00 V ±1 %, or 0.99 V to 1.01 V. However, basic accuracy does not take into account the inner workings of the ADC (that is at the heart
ADC.The aim of this application note is to help understand ADC errors and how to enhance ADC accuracy. The document is divided into two main parts:■ in the first, it gives the different types and sources of ADC errors related to the ADC design and to external ADC parameters such as ...
When the requested frequency is reached, the automatic calibration can be activated for further smooth calibration (for example to compensate temperature changes). Figure 9. HSI48 trimming algorithm Start CRS init, start Measure frequency error End No CRS error or warning signaled Yes ...
Using equation, you can calculate the total unadjusted error of the current-sense amplifiers shown in Table 1. The error from the common-noise rejection ratio is relatively small, and you can ignore it. The INA188 has the least error among the amplifie...
The most common factors contributing to the inaccuracy of any measuring system are gain errors, offset errors, and temperature drift errors in the analog domain and the time base accuracy of the ADC (analog-to-digital converter) and digital counters. ...
Cost TMP6x Linear Thermistors Jesse Baker Temperature and Humidity Sensing ABSTRACT Achieving high accuracy across temperature with traditional negative temperature coefficient (NTC) thermistors requires calibration at at least three different temperatures due to the non-linearity of NTCs across temperature. ...
Get ADC value for pin */ analogRead(36); /* Set the resolution of analogRead return values. Default is 12 bits (range from 0 to 4096). If between 9 and 12, it will equal the set hardware resolution, else value will be shifted. ...