12.07.2015 Views

Ultralow power ARM-based 32-bit MCU with 384 Kbytes Flash ... - Keil

Ultralow power ARM-based 32-bit MCU with 384 Kbytes Flash ... - Keil

Ultralow power ARM-based 32-bit MCU with 384 Kbytes Flash ... - Keil

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STM<strong>32</strong>L162VD, STM<strong>32</strong>L162ZD, STM<strong>32</strong>L162QD, STM<strong>32</strong>L162RDElectrical characteristicsFigure <strong>32</strong>.Maximum dynamic current consumption on V REF+ supply pin during ADCconversionSampling (n cycles)Conversion (12 cycles)ADC clock700µAI ref+300µATable 61. R AIN max for f ADC = 16 MHz (1)Ts(cycles)Ts(µs)R AIN max (kΩ)Multiplexed channelsDirect channels2.4 V < V DDA < 3.6 V 1.8 V < V DDA < 2.4 V 2.4 V < V DDA < 3.3 V 1.8 V < V DDA < 2.4 V4 0.25 Not allowed Not allowed 0.7 Not allowed9 0.5625 0.8 Not allowed 2.0 1.016 1 2.0 0.8 4.0 3.024 1.5 3.0 1.8 6.0 4.548 3 6.8 4.0 15.0 10.096 6 15.0 10.0 30.0 20.0192 12 <strong>32</strong>.0 25.0 50.0 40.0<strong>384</strong> 24 50.0 50.0 50.0 50.01. Guaranteed by design, not tested in production.General PCB design guidelinesPower supply decoupling should be performed as shown in Figure 33 or Figure 34,depending on whether V REF+ is connected to V DDA or not. The 10 nF capacitors should beceramic (good quality). They should be placed as close as possible to the chip.Doc ID 022268 Rev 2 105/124

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