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STM32MP151AAB3 数据表(PDF) 194 Page - STMicroelectronics |
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STM32MP151AAB3 数据表(HTML) 194 Page - STMicroelectronics |
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194 / 253 page  Electrical characteristics STM32MP151A/D 194/253 DS12500 Rev 3 Table 76. ADC accuracy(1)(2)(3)(4)(5)(6)(7) Symbol Parameter Conditions(8) Min Typ(9) Max Unit ET(10) Total unadjusted error Single ended BOOST = 1 - ±5 - ±LSB BOOST = 0 - ±7 - Differential BOOST = 1 - ±6 - BOOST = 0 - ±5 - ED Differential linearity error Single ended BOOST = 1 - 3 - BOOST = 0 - 1 - Differential BOOST = 1 - 8 - BOOST = 0 - 2 - EL Integral linearity error Single ended BOOST = 1 - ±6 - BOOST = 0 - ±4 - Differential BOOST = 1 - ±6 - BOOST = 0 - ±4 - ENOB(11) Effective number of bits (2 MSPS) Single ended BOOST = 1 - 12.5 - bits BOOST = 0 - 12.75 - Differential BOOST = 1 - 13.3 - BOOST = 0 - 13.7 - SINAD(11) Signal-to- noise and distortion ratio (2 MSPS) Single ended BOOST = 1 - 77.5 - dB BOOST = 0 - 78.75 - Differential BOOST = 1 - 82 - BOOST = 0 - 84.2 - SNR(11) Signal-to- noise ratio (2 MSPS) Single ended BOOST = 1 - 77.6 - BOOST = 0 - 79 - Differential BOOST = 1 - 82.4 - BOOST = 0 - 84.3 - THD(11) Total harmonic distortion Single ended BOOST = 1 - -85 - BOOST = 0 - -88 - Differential BOOST = 1 - -90 - BOOST = 0 - -93 - 1. Guaranteed by characterization. 2. ADC DC accuracy values are measured after internal calibration. 3. ADC accuracy versus negative injection current: injecting negative current on any analog input pins should be avoided as this significantly reduces the accuracy of the conversion being performed on another analog input. It is recommended to add a Schottky diode (pin to ground) to analog pins which may potentially inject negative current. 4. The above table gives the ADC performance in 16-bit mode. 5. Dual Simultaneous mode is limited to 12-bit. 6. Dual mode consisting in an injected conversion (reset) occurring during another (regular) conversion is forbidden. 7. Dual Interleaved 16-bit/14-bit/12-bit modes can work if the delay between the 2 ADCs is as specified in Table 77. |
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