MAX71020(2012) 查看數據表（PDF） - Maxim Integrated

零件编号

产品描述 (功能)

比赛名单

MAX71020
(Rev.:2012)

Single-Chip Electricity Meter AFE

Maxim Integrated 

MAX71020

Single-Chip Electricity Meter AFE

ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

Recommended Input Range

(With Respect to GNDA)

Input Impedance, No Preamplifier

CONDITIONS

IAP, IAN (preamplifier enabled)

fIN = 65Hz

ADC Gain Error vs Percentage Power-

Supply Variation

106 ∆NoutPK 357nV VIN

VIN = 200mV peak, 65Hz

VV3P3A = 3.0V, 3.6V

100∆V3P3A 3.3

MIN

-27.78

50

TYP MAX UNITS

+27.78 mV peak

100

kI

81 ppm/%

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

FIRLEN = 15

FIRLEN = 14

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 CKADC

FIRLEN

FIRLEN

=

=

13

12

FIRLEN = 11

FIRLEN = 10

FIRLEN = 15

FIRLEN = 14

Digital Full Scale

VIN = 55Hz, 400mVpk, FIRLEN = 13

10MHz CKADC

FIRLEN = 12

FIRLEN = 11

FIRLEN = 10

PREAMPLIFIER PERFORMANCE SPECIFICATIONS

Differential Gain,

(VIN = 28mV Differential)

Differential Gain

(VIN = 15mV Differential)

Gain Variation vs. V3P3

(VIN = 28mV Differential)

Gain Variation vs. Temperature

(VIN = 28mV Differential) (Note 4)

TA = +25NC, VV3P3A = 3.3V, PRE_E = 1,

DIFF0_E = 1

VV3P3A = 3.0V, 3.6V

TA = -40NC to +85NC

-10

+10

-85

-85

120.46

146.20

179.82

224.59

285.54

370.71

±2621440

±2160000

±1756160

±1406080

±1105920

±851840

8.9

-72

-45

mV

dB

dB

nV

LSB

V/V

ppm/%

ppm/NC

  4

Share Link: