MAX71020AEUIR 查看數據表（PDF） - Maxim Integrated
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MAX71020AEUIR Datasheet PDF : 35 Pages
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MAX71020
Single-Chip Electricity Meter AFE
ELECTRICAL CHARACTERISTICS (continued)
PARAMETER
CONDITIONS
ADC CONVERTER PERFORMANCE SPECIFICATIONS
Recommended Input Range
(with Respect to GNDA)
VA, VB, IBP, IBN
Recommended Input Range
(with Respect to GNDA)
IAP, IAN: preamplifier enabled
IAP, IAN: preamplifier disabled
Input Impedance, No
Preamplifier
fIN = 65Hz
ADC Gain Error vs Percentage
Power-Supply Variation
10 6 ∆NoutPK 357nV VIN
100∆V3P3A 3.3
VIN = 200mV peak, 65Hz; VV3P3A = 3.0V, 3.6V
Input Offset
IAP = IAN = GNDA
Total Harmonic Distortion at
250mVpk
VIN = 55Hz, 250mVpk, 64kpts FFT,
Blackman Harris Window
Total Harmonic Distortion at
20mVpk
VIN = 55Hz, 20mVpk, 64kpts FFT,
Blackman Harris Window
LSB Size (LSB Values Do Not
Include the 9-Bit Left Shift at
the CE Input)
VIN = 55Hz, 20mVpk,
64kpts FFT, Blackman-
Harris window, 10MHz
ADC clock
Digital Full Scale
VIN = 55Hz, 400mVpk,
10MHz ADC clock
PREAMPLIFIER PERFORMANCE SPECIFICATIONS
FIRLEN = 15
FIRLEN = 14
FIRLEN = 13
FIRLEN = 12
FIRLEN = 11
FIRLEN = 10
FIRLEN = 15
FIRLEN = 14
FIRLEN = 13
FIRLEN = 12
FIRLEN = 11
FIRLEN = 10
Differential Gain,
(VIN = 28mV Differential)
Differential Gain
(VIN = 15mV Differential)
Gain Variation vs. V3P3A
(VIN = 28mV Differential)
Gain Variation vs. Temperature
(VIN = 28mV Differential)
Phase Shift (VIN = 28mV
Differential)
TA = +25°C, VV3P3A = 3.3V, preamplifier enabled
VV3P3A = 3.0V, 3.6V
TA = -40°C to +85°C
TA = +25°C, VV3P3A = 3.3V (Note 4)
Preamplifier Input Current (IIAP) Preamplifier enabled, IADC0 = IADC1 = GNDA
Preamplifier Input Current (IIAN)
Maxim Integrated
MIN
TYP
MAX UNITS
-250
-27.78
-250
50
+250 mVpk
+27.78
mVpk
+250
100
kω
81 ppm/%
-10
+10
mV
-85
dB
-90
dB
120.46
146.20
179.82
nV
224.59
285.54
370.71
Q2621440
Q2160000
Q1756160
LSB
Q1406080
Q1105920
Q851840
8.9
V/V
-72
ppm/%
-45
ppm/°C
0
8
milli-
degree
9
15
20
µA
4
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