전자부품 데이터시트 검색엔진 |
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Q67127-C2057 데이터시트(PDF) 66 Page - Siemens Semiconductor Group |
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Q67127-C2057 데이터시트(HTML) 66 Page - Siemens Semiconductor Group |
66 / 85 page Semiconductor Group 66 1997-12-01 C505 / C505C C505A / C505CA A/D Converter Characteristics of C505A and C505CA V CC = 5 V + 10%, – 15%; VSS = 0 V T A = 0 to 70 °C for the SAB- versions T A = – 40 to 85 °C for the SAF- versions T A = – 40 to 110 °C for the SAH- versions T A = – 40 to 125 °C for the SAK- versions 4 V ≤ V AREF ≤ VCC + 0.1 V; VSS – 0.1 V ≤ VAGND ≤ V SS + 0.2 V Notes see next page. Clock calculation table: Further timing conditions : tADC min = 500 ns tIN = 1 / fOSC = tCLP Parameter Symbol Limit Values Unit Test Condition min. max. Analog input voltage V AIN V AGND V AREF V 1) Sample time t S – 64 × t IN 32 × t IN 16 × t IN 8 × t IN ns Prescaler ÷ 32 Prescaler ÷ 16 Prescaler ÷ 8 Prescaler ÷ 4 2) Conversion cycle time t ADCC – 384 × t IN 192 × t IN 96 × t IN 48 × t IN ns Prescaler ÷ 32 Prescaler ÷ 16 Prescaler ÷ 8 Prescaler ÷ 4 3) Total unadjusted error TUE – ± 2 LSB V SS + 0.5 V ≤ VAIN ≤ VCC-0.5 V 4) – ± 4 LSB V SS < VAIN < VCC + 0.5 V V CC - 0.5 V < VAIN < VCC 4) Internal resistance of reference voltage source R AREF – t ADC / 250 - 0.25 k Ω t ADC in [ns] 5) 6) Internal resistance of analog source R ASRC – t S / 500 - 0.25 k Ω t S in [ns] 2) 6) ADC input capacitance C AIN –50 pF 6) Clock Prescaler Ratio ADCL1, 0 tADC tS tADCC ÷ 32 1 1 32 × t IN 64 × t IN 384 × t IN ÷ 16 1 0 16 × t IN 32 × t IN 192 × t IN ÷ 8 0 1 8 x tIN 16 × t IN 96 × t IN ÷ 4 0 0 4 x tIN 8 × t IN 48 × t IN |
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