MSP430F673X Datasheet, PDF (77/121 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

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MSP430F673x
MSP430F672x
SLAS731A – DECEMBER 2011 – REVISED APRIL 2012
90
85
80
75
70
65
60
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Vpp/Vref/Gain
Figure 20. SINAD vs V_PP
SD24_B, External Reference Input
ensure correct input voltage range according to V_REF
PARAMETER
TEST CONDITIONS
V_REF(I) Input voltage
I_REF(I) Input current
SD24REFS = 0
SD24REFS = 0
V_CC
MIN TYP MAX UNIT
3V
1.0 1.20 1.5 V
3V
50 nA
10-Bit ADC, Power Supply and Input Range Conditions
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
AV_CC
V_(Ax)
PARAMETER
TEST CONDITIONS
Analog supply voltage
Analog input voltage range⁽¹⁾
AV_CC and DV_CC are connected together,
AV_SS and DV_SS are connected together,
V_(AVSS) = V_(DVSS) = 0 V
All ADC10_A pins
Operating supply current into f_ADC10CLK = 5 MHz, ADC10ON =1, REFON = 0,
AV_CC terminal, REF module SHT0 = 0, SHT1 = 0, ADC10DIV = 0, ADC10SREF
and reference buffer off
= 00
V_CC
2.2 V
3V
MIN TYP MAX UNIT
1.8
3.6 V
0
AV_CC V
70 105
µA
80 115
I_{ADC10_A}
Operating supply current into fADC10CLK = 5 MHz, ADC10ON = 1, REFON = 1,
AV_CC terminal, REF module SHT0 = 0, SHT1 = 0, ADC10DIV = 0, ADC10SREF 3 V
on, reference buffer on
= 01
Operating supply current into fADC10CLK = 5 MHz, ADC10ON = 1, REFON = 0,
AV_CC terminal, REF module SHT0 = 0, SHT1 = 0, ADC10DIV = 0, ADC10SREF 3 V
off, reference buffer on
= 10, VEREF = 2.5 V
130 185 µA
108 160 µA
Operating supply current into fADC10CLK = 5 MHz, ADC10ON = 1, REFON = 0,
AV_CC terminal, REF module SHT0 = 0, SHT1 = 0, ADC10DIV = 0, ADC10SREF 3 V
off, reference buffer off
= 11, VEREF = 2.5 V
74 105 µA
C_I
Input capacitance
Only one terminal Ax can be selected at one time
from the pad to the ADC10_A capacitor array
including wiring and pad.
2.2 V
3.5
pF
R_I
Input MUX ON resistance
AV_CC > 2 V, 0 V ≤ V_Ax ≤ AV_CC
1.8 V < AV_CC < 2 V, 0 V ≤ V_Ax ≤ AV_CC
36
kΩ
96
(1) The analog input voltage range must be within the selected reference voltage range V_R+ to V_R– for valid conversion results. The external
reference voltage requires decoupling capacitors. Two decoupling capacitors, 10 µF and 100 nF, should be connected to VREF to
decouple the dynamic current required for an external reference source if it is used for the ADC10_A. Also see the MSP430x5xx and
MSP430x6xx Family User's Guide (SLAU208).
Copyright © 2011–2012, Texas Instruments Incorporated
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