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MSP430F247TRGC Datasheet

  • MSP430F247TRGC

  • Texas Instruments [MIXED SIGNAL MICROCONTROLLER]

  • 1652.55KB

  • TI

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MSP430x23x, MSP430x24x(1), MSP430x2410
MIXED SIGNAL MICROCONTROLLER
SLAS547A -- JUNE 2007 -- REVISED NOVEMBER 2007
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
12-bit ADC, power supply and input range conditions
PARAMETER
AV
CC
Analog supply voltage
TEST CONDITIONS
AV
CC
and DV
CC
are connected together
AV
SS
and DV
SS
are connected together
V
(AVSS)
= V
(DVSS)
= 0 V
All P6.0/A0 to P6.7/A7 terminals. Analog
inputs selected in ADC12MCTLx register,
P6Sel.x = 1, 0
鈮?/div>
x
鈮?/div>
7,
V
(AVSS)
鈮?/div>
V
P6.x/Ax
鈮?/div>
V
(AVCC)
f
ADC12CLK
= 5 MHz, ADC12ON = 1,
REFON = 0 SHT0 = 0, SHT1 = 0,
0,
0
0
ADC12DIV = 0
f
ADC12CLK
= 5 MHz, ADC12ON = 0,
REFON = 1, REF2_5V = 1
f
ADC12CLK
= 5 MHz, ADC12ON = 0,
REFON = 1, REF2_5V = 0
Only one terminal can be selected at one
time, P6.x/Ax
0V
鈮?/div>
V
Ax
鈮?/div>
V
AVCC
2.2 V
3V
3V
2.2 V
3V
2.2 V
3V
VCC
MIN
2.2
TYP
MAX
3.6
UNIT
V
V
(P6.x/Ax)
Analog input voltage
range (see Note 2)
Operating supply current
into AV
CC
terminal
(see Note 3)
Operating supply current
p
g pp y
into AV
CC
terminal
i
i l
(see Note 4)
Input capacitance
Input MUX ON resistance
0
V
AVCC
0.65
0.8
0.5
0.5
0.5
0.8
1.0
0.7
0.7
0.7
40
2000
V
I
ADC12
mA
mA
mA
pF
鈩?/div>
I
REF+
C
I 鈥?/div>
R
I鈥?/div>
鈥?/div>
Not production tested, limits verified by design
NOTES: 1. The leakage current is defined in the leakage current table with P6.x/Ax parameter.
2. The analog input voltage range must be within the selected reference voltage range V
R+
to V
R--
for valid conversion results.
3. The internal reference supply current is not included in current consumption parameter I
ADC12
.
4. The internal reference current is supplied via terminal AV
CC
. Consumption is independent of the ADC12ON control bit, unless a
conversion is active. The REFON bit enables to settle the built-in reference before starting an A/D conversion.
12-bit ADC, external reference (see Note 1)
PARAMETER
V
eREF+
V
REF-- /
V
eREF--
(V
eREF+
--
V
REF--/
V
eREF--
)
I
VeREF+
I
VREF--/VeREF--
Positive external
reference voltage input
Negative external
reference voltage input
Differential external
reference voltage input
Static input current
Static input current
TEST CONDITIONS
V
eREF+
> V
REF--
/V
eREF--
(see Note 2)
V
eREF+
> V
REF--
/V
eREF--
(see Note 3)
V
eREF+
> V
REF--
/V
eREF--
(see Note 4)
0V
鈮?/div>
V
eREF+
鈮?/div>
V
AVCC
0V
鈮?/div>
V
eREF--
鈮?/div>
V
AVCC
2.2 V/3 V
2.2 V/3 V
VCC
MIN
1.4
0
1.4
MAX
V
AVCC
1.2
V
AVCC
鹵1
鹵1
UNIT
V
V
V
渭A
渭A
NOTES: 1. The external reference is used during conversion to charge and discharge the capacitance array. The input capacitance, C
i
, is also
the dynamic load for an external reference during conversion. The dynamic impedance of the reference supply should follow the
recommendations on analog-source impedance to allow the charge to settle for 12-bit accuracy.
2. The accuracy limits the minimum positive external reference voltage. Lower reference voltage levels may be applied with reduced
accuracy requirements.
3. The accuracy limits the maximum negative external reference voltage. Higher reference voltage levels may be applied with reduced
accuracy requirements.
4. The accuracy limits minimum external differential reference voltage. Lower differential reference voltage levels may be applied with
reduced accuracy requirements.
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
63

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