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MAX71020
Single-Chip Electricity Meter AFE
ELECTRICAL CHARACTERISTICS (continued)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ADC CONVERTER PERFORMANCE SPECIFICATIONS
Recommended Input Range
(with Respect to GNDA)
Recommended Input Range
(with Respect to GNDA)
Input Impedance, No
Preamplifier
VA, VB, IBP, IBN
IAP, IAN: preamplifier enabled
IAP, IAN: preamplifier disabled
f IN = 65Hz
-250
-27.78
-250
50
+250
+27.78
+250
100
mVpk
mVpk
kω
ADC Gain Error vs Percentage
Power-Supply Variation
10 6 ? Nout PK 357nV V IN
100 ? V3P3A 3.3
V IN = 200mV peak, 65Hz; V V3P3A = 3.0V, 3.6V
81
ppm/%
Input Offset
Total Harmonic Distortion at
250mVpk
Total Harmonic Distortion at
20mVpk
IAP = IAN = GNDA
V IN = 55Hz, 250mVpk, 64kpts FFT,
Blackman Harris Window
V IN = 55Hz, 20mVpk, 64kpts FFT,
Blackman Harris Window
-10
-85
-90
+10
mV
dB
dB
FIRLEN = 15
120.46
LSB Size (LSB Values Do Not
Include the 9-Bit Left Shift at
the CE Input)
V IN = 55Hz, 20mVpk,
64kpts FFT, Blackman-
Harris window, 10MHz
ADC clock
FIRLEN = 14
FIRLEN = 13
FIRLEN = 12
FIRLEN = 11
146.20
179.82
224.59
285.54
nV
FIRLEN = 10
FIRLEN = 15
FIRLEN = 14
370.71
Q 2621440
Q 2160000
Digital Full Scale
V IN = 55Hz, 400mVpk,
10MHz ADC clock
FIRLEN = 13
FIRLEN = 12
Q 1756160
Q 1406080
LSB
PREAMPLIFIER PERFORMANCE SPECIFICATIONS
Differential Gain,
FIRLEN = 11
FIRLEN = 10
Q 1105920
Q 851840
(V IN = 28mV Differential)
Differential Gain
T A = +25°C, V V3P3A = 3.3V, preamplifier enabled
8.9
V/V
(V IN = 15mV Differential)
Gain Variation vs. V 3P3A
(V IN = 28mV Differential)
Gain Variation vs. Temperature
(V IN = 28mV Differential)
V V3P3A = 3.0V, 3.6V
T A = -40°C to +85°C
-72
-45
ppm/%
ppm/°C
Phase Shift (V IN = 28mV
Differential)
T A = +25°C, V V3P3A = 3.3V (Note 4)
0
8
milli-
degree
Preamplifier Input Current (I IAP )
Preamplifier Input Current (I IAN )
Preamplifier enabled, IADC0 = IADC1 = GNDA
9
15
20
μA
Maxim Integrated
4
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相关代理商/技术参数
MAX71020AEUI+R 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Single-Chip Electricity Meter AFE
MAX710C/D 功能描述:直流/直流开关转换器 3.3V/5V or Adjustable Step-Up Step-Down DC-DC Converters RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
MAX710C/D DIE 制造商:Maxim Integrated Products 功能描述:
MAX710ESE 功能描述:直流/直流开关转换器 3.3/5V or Adjustable Step-Up Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
MAX710ESE+ 功能描述:直流/直流开关转换器 3.3/5V or Adjustable Step-Up Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
MAX710ESE+ 制造商:Maxim Integrated Products 功能描述:CONVERTOR DC/DC ((NW))
MAX710ESE+T 功能描述:直流/直流开关转换器 3.3/5V or Adjustable Step-Up Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
MAX710ESE-T 功能描述:直流/直流开关转换器 3.3/5V or Adjustable Step-Up Step-Down RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT