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BCM20730 Fiches technique(PDF) 45 Page - Cypress Semiconductor |
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BCM20730 Fiches technique(HTML) 45 Page - Cypress Semiconductor |
45 / 62 page Electrical Characteristics BROADCOM September 9, 2013 • 20730-DS108-R Page 44 ® BCM20730 Data Sheet BROADCOM CONFIDENTIAL Table 12: ADC Specifications Parameter Symbol Conditions Min Typ Max Unit ADC Characteristics Number of Input channels –– – 28 – – Channel switching rate fch – – – 133.33 kch/s Input signal range Vinp –0 – 3.63 V Reference settling time – Changing refsel 7.5 – – μs Input resistance Rinp Effective, single-ended – 500 – k Ω Input capacitance Cinp –– – 5 pF Conversion rate fC –5.859 – 187 kHz Conversion time TC – 5.35 – 170.7 μs Resolution R – – 16 – bits Effective number of bits –– – See Table 1 on page 18 – Absolute voltage measurement error – Using on-chip ADC firmware driver –±2 – % Current I Iavdd1p2 + Iavdd3p3 –– 1 mA Power P – – 1.5 – mW Leakage current Ileakage T = 25°C – – 100 nA Power-up time Tpowerup – – – 200 μs Integral nonlinearity3 INL – –1 – 1 LSBa a. LSBs are expressed at the 10-bit level. Differential nonlinearitya DNL – –1 – 1 LSBa Table 13: Digital Levela a. This table is also applicable to VDDMEM domain. Characteristics Symbol Min Typ Max Unit Input low voltage VIL –– 0.4 V Input high voltage VIH 0.75 × VDDO – – V Input low voltage (VDDO = 1.62V) VIL –– 0.4 V Input high voltage (VDDO = 1.62V) VIH 1.2 – – V Output low voltageb b. At the specified drive current for the pad. VOL –– 0.4 V Output high voltageb VOH VDDO – 0.4 – – V Input capacitance (VDDMEM domain) CIN –0.12 – pF |
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