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MSP430F677X1_16 Datasheet, PDF (88/162 Pages) Texas Instruments – Polyphase Metering SoCs
MSP430F677x1, MSP430F676x1, MSP430F674x1
SLAS815C – NOVEMBER 2012 – REVISED DECEMBER 2013
110.0
100.0
theoretical limit
(2nd order)
90.0
80.0
70.0
60.0
50.0
10
100
1000
OSR
Figure 19. SINAD vs OSR
(fSD24 = 1MHz, SD24REFON = 1, SD24GAIN: 1)
100.0
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80.0
60.0
40.0
20.0
0.0
0
0.2
0.4
0.6
0.8
1
Vpp/Vref/Gain
Figure 20. SINAD vs VPP
SD24_B External Reference Input
ensure correct input voltage range according to VREF
PARAMETER
TEST CONDITIONS
VCC
VREF(I) Input voltage
SD24REFS = 0
3V
IREF(I) Input current
SD24REFS = 0
3V
MIN TYP MAX UNIT
1.0 1.20 1.5 V
50 nA
88
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