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 invo...
/1000pF, VIN = 1.0004V, VADC(CH0) = 1.0004V (Error=0%), VADC(CH1) = 0.9973V (Error = 0.27%), fSCL= 90kHz. Conclusion This document illustrates three methods to improve the measured accuracy of the MAX11163 with high-input source impedance. The buffer amplifier met...
November 2008 Rev 11/28AN2834Application noteHow to get the best ADC accuracyin STM32F10xxx devicesIntroductionThe STM32F10xxx microcontroller family embeds up to three advanced 12-bit ADCs (depending on the device) with a conversion time down to 1 µs. A self-calibration feature is provid...
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 amplifier...
–5 V, and –9 V through DC source and read the ADC data from the ACE software. After 24 hours, repeat this test. Calculating gain error and offset error for 24-hour accuracy is akin to determining temperature coefficient error, with the sole distinction being the absence of temperatu...
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. ...
2.3.1. Reference voltage The ADC requires a reference voltage to which the analog input is compared to produce the digital output. The digital output is the ratio of the analog input with respect to this reference voltage. How to Increase the Analog-to-Digital Converter Accuracy in an ...
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. ...
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 ...
1. Using the equation below, calculate the AUX2MON OFFSET value (Table 04h, address ACh). The resulting calculation will be a decimal, so conversion to a hexadecimal must be done before the value is entered into the DS1862. Moreover, if the decimal value is negative, then the two's ...