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STM32H747AI Folha de dados(PDF) 188 Page - STMicroelectronics |
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STM32H747AI Folha de dados(HTML) 188 Page - STMicroelectronics |
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188 / 252 page  Electrical characteristics STM32H747xI/G 178/242 DS12930 Rev 1 6.3.23 16-bit ADC characteristics Unless otherwise specified, the parameters given in Table 98 are derived from tests performed under the ambient temperature, fPCLK2 frequency and VDDA supply voltage conditions summarized in Table 22: General operating conditions. Table 98. ADC characteristics(1)(2) Symbol Parameter Conditions Min Typ Max Unit VDDA Analog supply voltage for ADC ON -1.62 - 3.6 V VREF+ Positive reference voltage -1.62 - VDDA V VREF- Negative reference voltage -VSSA V fADC ADC clock frequency 1.62 V ≤ VDDA ≤ 3.6 V BOOST = 11 0.12 - 50 MHz BOOST = 10 0.12 - 25 BOOST = 01 0.12 - 12.5 BOOST = 00 - - 6.25 fs(3) Sampling rate for Direct channels(4) Resolution = 16 bits, VDDA >2.5 V TJ = 90 °C fADC=36 MHz SMP = 1.5 - - 3.60 MSps Resolution = 16 bits fADC=37 MHz SMP = 2.5 - - 3.35 Resolution = 14 bits TJ = 125 °C fADC = 50 MHz SMP = 2.5 - - 5.00 Resolution = 12 bits fADC = 50 MHz SMP = 2.5 - - 5.50 Resolution = 10 bits fADC = 50 MHz SMP = 1.5 - - 7.10 Resolution = 8 bits fADC = 50 MHz SMP = 1.5 - - 8.30 Sampling rate for Fast channels Resolution = 16 bits, VDDA >2.5 V TJ = 90 °C fADC=32 MHz SMP = 2.5 - - 2.90 Resolution = 16 bits fADC=31 MHz SMP = 2.5 - - 2.80 Resolution = 14 bits TJ = 125 °C fADC = 33 MHz SMP = 2.5 - - 3.30 Resolution = 12 bits fADC = 39 MHz SMP = 2.5 - - 4.30 Resolution = 10 bits fADC = 48 MHz SMP = 2.5 - - 6.00 Resolution = 8 bits fADC = 50 MHz SMP = 2.5 - - 7.10 Sampling rate for Slow channels Resolution = 16 bits TJ = 90 °C fADC = 10 MHz SMP = 1.5 -- 1.00 resolution = 14 bits TJ = 125 °C -- resolution = 12 bits - - resolution = 10 bits - - resolution = 8 bits - - tTRIG External trigger period Resolution = 16 bits - - 10 1/ fADC VAIN(5) Conversion voltage range -0 - VREF+ V VCMIV Common mode input voltage - VREF/2 − 10% VREF/ 2 VREF/2 + 10% V |
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