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STM32F107VC 数据表(PDF) 79 Page - STMicroelectronics |
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STM32F107VC 数据表(HTML) 79 Page - STMicroelectronics |
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79 / 108 page  DocID15274 Rev 10 79/108 STM32F105xx, STM32F107xx Electrical characteristics 107 5.3.18 DAC electrical specifications Table 56. DAC characteristics Symbol Parameter Min Typ Max Unit Comments VDDA Analog supply voltage 2.4 - 3.6 V - VREF+ Reference supply voltage 2.4 - 3.6 V VREF+ must always be below VDDA VSSA Ground 0 - 0 V - RLOAD(1) Resistive load with buffer ON 5 - - k Ω - RO(1) Impedance output with buffer OFF - - 15 k Ω When the buffer is OFF, the Minimum resistive load between DAC_OUT and VSS to have a 1% accuracy is 1.5 M Ω CLOAD(1) Capacitive load - - 50 pF Maximum capacitive load at DAC_OUT pin (when the buffer is ON). DAC_OUT min(1) Lower DAC_OUT voltage with buffer ON 0.2 - - V It gives the maximum output excursion of the DAC. It corresponds to 12-bit input code (0x0E0) to (0xF1C) at VREF+ = 3.6 V and (0x155) to (0xEAB) at VREF+ = 2.4 V DAC_OUT max(1) Higher DAC_OUT voltage with buffer ON - - VDDA – 0.2 V DAC_OUT min(1) Lower DAC_OUT voltage with buffer OFF - 0.5 - mV It gives the maximum output excursion of the DAC. DAC_OUT max(1) Higher DAC_OUT voltage with buffer OFF - - VREF+ – 1LSB V IDDVREF+ DAC DC current consumption in quiescent mode (Standby mode) - - 220 µA With no load, worst code (0xF1C) at VREF+ = 3.6 V in terms of DC consumption on the inputs IDDA DAC DC current consumption in quiescent mode (Standby mode) - - 380 µA With no load, middle code (0x800) on the inputs - - 480 µA With no load, worst code (0xF1C) at VREF+ = 3.6 V in terms of DC consumption on the inputs DNL(2) Differential non linearity Difference between two consecutive code-1LSB) - - ±0.5 LSB Given for the DAC in 10-bit configuration. - - ±2 LSB Given for the DAC in 12-bit configuration. INL(2) Integral non linearity (difference between measured value at Code i and the value at Code i on a line drawn between Code 0 and last Code 1023) - - ±1 LSB Given for the DAC in 10-bit configuration. - - ±4 LSB Given for the DAC in 12-bit configuration. |
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