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STM8L151M8 Datasheet(PDF) 114 Page - STMicroelectronics |
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STM8L151M8 Datasheet(HTML) 114 Page - STMicroelectronics |
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114 / 134 page ![]() Electrical parameters STM8L15xx8, STM8L15xR6 114/134 DocID17943 Rev 6 tS Sampling time VAIN PF0/1/2/3 fast channels VDDA < 2.4 V 0.43(3)(4) µs VAIN PF0/1/2/3 fast channels 2.4 V ≤VDDA≤ 3.6 V 0.22(3)(4) VAIN on slow channels VDDA < 2.4 V 0.86(3)(4) VAIN on slow channels 2.4 V ≤VDDA≤ 3.6 V 0.41(3)(4) tconv 12-bit conversion time 12 + tS 1/fADC 16 MHz 1(3) µs tWKUP Wakeup time from OFF state 3µs tIDLE(5) Time before a new conversion ∞ s tVREFINT Internal reference voltage startup time refer to Table 46 ms 1. The current consumption through VREF is composed of two parameters: - one constant (max 300 µA) - one variable (max 400 µA), only during sampling time + 2 first conversion pulses. So, peak consumption is 300+400 = 700 µA and average consumption is 300 + [(4 sampling + 2) /16] x 400 = 450 µA at 1Msps 2. VREF- must be tied to ground. 3. Minimum sampling and conversion time is reached for maximum RAIN= 0.5 kΩ.. 4. Value obtained for continuous conversion on fast channel. 5. The time between 2 conversions, or between ADC ON and the first conversion must be lower than tIDLE. Table 53. ADC1 characteristics (continued) Symbol Parameter Conditions Min. Typ. Max. Unit |
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