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STM32U545NET3QTR 数据表(PDF) 224 Page - STMicroelectronics |
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STM32U545NET3QTR 数据表(HTML) 224 Page - STMicroelectronics |
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224 / 283 page  Electrical characteristics STM32U545xx 224/283 DS14216 Rev 1 tCONV Total conversion time (including sampling time) Resolution = N bits, VREFPROTEN = 0 ts + N + 0.5 1/fADC Resolution = N bits, VREFPROTEN = 1 VREFSECSMP = 0 ts + N + 0.5 - ts + N + 1.5 Resolution = N bits, VREFPROTEN = 1 VREFSECSMP = 1 ts + N + 0.5 - ts + N + 2.5 IDDA(ADC) ADC consumption on VDDA fs = 2.5 Msps - 360 - µA fs = 1 Msps - 180 - fs = 10 ksps - 10 - AUTOFF = 1, DPD = 0, no conversion -9 - AUTOFF = 1, DPD = 1, no conversion -0.1 - IDDV(ADC) ADC consumption on VREF+ fs = 2.5 Msps - 18 - fs = 1 Msps - 10.2 - fs = 10 ksps - 0.12 - AUTOFF = 1, DPD = 0, no conversion -0.01 - AUTOFF = 1, DPD = 1, no conversion -0.01 - 1. Specified by design. Not tested in production. 2. The voltage booster on the ADC switches must be used when VDDA < 2.4 V (embedded I/O switches). 3. Depending on the package, VREF+ can be internally connected to VDDA and VREF- can be internally connected to VSSA. 4. The tolerance is 2 LSBs. Table 106. 12-bit ADC4 characteristics(1)(2) (continued) Symbol Parameter Conditions Min Typ Max Unit |
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