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7477 Datasheet(PDF) 207 Page - Renesas Technology Corp |
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7477 Datasheet(HTML) 207 Page - Renesas Technology Corp |
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207 / 354 page  1-190 HARDWARE 1.20 Electrical characteristics 7470/7471/7477/7478 GROUP USER’S MANUAL Table 1.20.4 A-D converter characteristics (7470 group) (VCC = 2.7 V to 5.5 V, VSS = 0 V, Ta = –20 °C to +85 °C, f(XIN) = 4 MHz, unless otherwise noted) Symbol Parameter Unit Limits Max. Typ. Min. bits LSB LSB LSB LSB LSB LSB µs µs V k Ω V 8 ±2 ±0.9 2 3 4 7 12.5 25 VCC 10 VREF Test conditions Resolution Non-linearity error Differential non-linearity error Zero transition error Full scale transition error Conversion time Reference input voltage Ladder resistance value Analog supply voltage VCC = VREF = 5.12 V, IOL(sum) = 0 mA VCC = VREF = 3.072 V, IOL(sum) = 0 mA VCC = VREF = 5.12 V VCC = VREF = 3.072 V 0.5VCC (Note) 2 0 5 — — — VOT VFST TCONV VREF RLADDER VIA f(XIN) = 8 MHz f(XIN) = 4 MHz Note: Set the VREF voltage to 0.5 VCC or more and 2 V or more. When using no A-D converter, connect it to VCC. |
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