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STR910FAM32 数据表(PDF) 87 Page - STMicroelectronics |
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STR910FAM32 数据表(HTML) 87 Page - STMicroelectronics |
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87 / 99 page  STR91xFAx32 STR91xFAx42 STR91xFAx44 Electrical characteristics 87/99 7.13 ADC electrical characteristics VDDQ = 2.7 - 3.6V, VDD = 1.65 - 2V, TA = -40 / 85 °C unless otherwise specified. Table 46. General ADC electrical characteristics Symbol Parameter(1) Test Conditions Value Unit Min Typ Max VAIN Input Voltage Range 0 AVREF V RES Resolution 10 Bits NCH Number of Input Channels 8 N fADC ADC Clock Frequency 25 MHz tPOR(ADC) POR bit set to Standby mode 500 ms tck_off(ADC) ADC clock disabled before conversion (2) 1ms tSTAB Stabilization time 15 µs CIN Input Capacitance 5 pF ED Differential Non-Linearity (3) (4) 13 LSB(5) EL Integral Non-Linearity (3) 36 LSB(5) EO Offset Error (3) 36 LSB(5) EG Gain Error (3) 0.5 2 LSB(5) ET Total Unadjusted Error (3) 46 LSB(5) IADC Power Consumption 4.6 mA 1. Guaranteed by design, not tested in production. 2. The ADC clock can be disabled by setting the ADC bit in the SCU_PCGR1 register or by setting the ACG bit in the SCU_GPIOANA register (for Rev H only) 3. Conditions: AVSS = 0 V, AVDD = 3.3 V fADC = 25 MHz. 4. The A/D is monotonic, there are no missing codes. 5. 1 LSB = (AVDD - AVSS)/1024 Table 47. ADC conversion time (silicon Rev H) Symbol Parameter(1) (2) Test Conditions Value Unit Min Typ Max tCONV(S] Single mode conversion time 1*16/fADC 2*16/fADC µs fADC = 24 MHz 0.66 1.33 TR(S) Single mode throughput rate (3) fADC = 24 MHz 750 ksps tCONV(C] Continuous mode conversion time (4) 1*16/fADC µs fADC = 24 MHz 0.66 µs TR(C) Continuous mode throughput rate fADC = 24 MHz 1500 ksps |
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