MAX71020 查看數據表（PDF） - Maxim Integrated
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MAX71020 Datasheet PDF : 35 Pages
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MAX71020
Single-Chip Electricity Meter AFE
ELECTRICAL CHARACTERISTICS (continued)
PARAMETER
TEMPERATURE MONITOR
CONDITIONS
TNOM (Nominal Value at 22°C)
Temperature Measurement
Equation
VV3P3A = 3.3V
Temperature Error (Note 4)
TA = -40°C to +85°C
TA = -20°C to +60°C
Duration of Temperature
Measurement After Setting
TEMP_START
TEMP_PER = 0
SUPPLY CURRENT PERFORMANCE SPECIFICATIONS
V3P3A + V3P3SYS Current
(Note 4)
VV3P3A = VV3P3SYS = 3.3V, CE_E = 1,
ADC_E = 1
INTERNAL POWER-FAULT COMPARATOR SPECIFICATIONS
Overall Response Time
100mV overdrive, falling
100mV overdrive, rising
3.0V comparator
Falling Threshold
2.8V comparator
Difference 3.0V and 2.8V comparators
Hysteresis (Rising Threshold - 3.0V comparator, TA = +22°C
Falling Threshold)
2.8V comparator, TA = +22°C
PLL PERFORMANCE SPECIFICATIONS
PLL Power-Up Settling Time
VV3P3A = 0 to 3.3V step, measured from first edge
of MCK
PLL_FAST Settling Time
VV3P3A = 3.3V, PLL_FAST rise
VV3P3A = 3.3V, PLL_FAST fall
PLL Lock Frequency at XOUT VV3P3A = 3.3V, MCK frequency error < 1%
VREF PERFORMANCE SPECIFICATIONS
VREF Output Voltage, VREF (22)
VREF Power-Supply Sensitivity
(DVREF/DVV3P3A)
TA = +22°C
VV3P3A = 3.0V to 3.6V
VNOM Definition
VNOM Temperature Coefficient
TC1
VNOM Temperature Coefficient
TC2
VREF(T) Deviation from
VNOM(T):
VREF(T) - VNOM(T)106
VNOM(T)
62
(Note 4)
Maxim Integrated
MIN
TYP
MAX UNITS
956
LSB
Temp = 0.33 x STEMP +
21.77
°C
-6
+6
°C
-4.8
+4.8
15
60
ms
3
4.3
mA
20
200
Fs
8
200
2.83
2.93
3.03
V
2.75
2.81
2.89
V
50
136
220
mV
17
45
74
mV
15
42
70
75
Fs
10
Fs
10
7
9.8
13
MHz
1.200
1.205 1.210
-1.5
+1.5
VNOM(T) = VREF(22) +
TC1(T - 22) + TC2(T - 22)2
29.32 - 1.05 x TRIMT
V
mV/V
V
FV/°C
-0.56 - 0.004 x TRIMT
FV/°C2
-40
+40 ppm/°C
3
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