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MAX71020AEUI+R Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX71020AEUI+R Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 37 page 3 MAX71020 Single-Chip Electricity Meter AFE ELECTRICAL CHARACTERISTICS (continued) PARAMETER CONDITIONS MIN TYP MAX UNITS Temperature Measurement Equation Temp = 0.33 x STEMP + 21.77 N C Temperature Error (Note 2) TA = -40NC to +85NC -6 +6 N C TA = -20NC to +60NC -4.8 +4.8 Duration of Temperature Measurement After Setting TEMP_START TEMP_PER = 0 15 60 ms SUPPLY CURRENT PERFORMANCE SPECIFICATIONS V3P3A + V3P3SYS Current (Note 2) VV3P3A = VV3P3SYS = 3.3V, CE_E = 1, ADC_E = 1 4.3 mA INTERNAL POWER-FAULT COMPARATOR SPECIFICATIONS Overall Response Time 100mV overdrive, falling 20 200 µs 100mV overdrive, rising 8 200 Falling Threshold 3.0V comparator 2.83 2.93 3.03 V 2.8V comparator 2.75 2.81 2.89 V Difference 3.0V and 2.8V comparators 50 136 220 mV Hysteresis (Rising Threshold - Falling Threshold) 3.0V comparator, TA = +22NC 17 45 74 mV 2.8V comparator, TA = +22NC 15 42 70 PLL PERFORMANCE SPECIFICATIONS PLL Power-Up Settling Time VV3P3A = 0 to 3.3V step, measured from first edge of MCK 75 µs PLL_FAST Settling Time VV3P3A = 3.3V, PLL_FAST rise 10 µs VV3P3A = 3.3V, PLL_FAST fall 10 PLL Lock Frequency at XOUT VV3P3A = 3.3V, MCK frequency error < 1% 7 9.8 13 MHz VREF PERFORMANCE SPECIFICATIONS VREF Output Voltage, VREF (22) TA = +22NC 1.200 1.205 1.210 V VREF Power-Supply Sensitivity (DVREF/DV3P3A) V3P3A = 3.0V to 3.6V -1.5 +1.5 mV/V VNOM Definition VNOM(T) = VREF(22) + TC1(T - 22) + TC2(T - 22)2 V VNOM Temperature Coefficient TC1 29.32 - 1.05 x TRIMT µV/NC VNOM Temperature Coefficient TC2 -0.56 - 0.004 x TRIMT µV/NC2 VREF(T) Deviation from VNOM(T): (Note 2) -40 +40 ppm/NC ADC CONVERTER PERFORMANCE SPECIFICATIONS Recommended Input Range (With Respect to GNDA) VA, VB, IBP, IBN -250 +250 mV peak 6 VREF(T) - VNOM(T)10 VNOM(T) 62 |
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