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| 型号： | MSP430F439IPN |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, FLASH, RISC MICROCONTROLLER, PQFP80 |
| 封装： | GREEN. PLASTIC, LQFP-80 |
| 文件页数： | 28/67页 |
| 文件大小： | 1105K |
| 代理商： | MSP430F439IPN |
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MSP430F43x
MIXED SIGNAL MICROCONTROLLER
SLAS713 -- JUNE 2010
34
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
12-bit ADC, power supply and input range conditions (see Note 1)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
AVCC
Analog supply voltage
AVCC and DVCC are connected together
AVSS and DVSS are connected together
V(AVSS) =V(DVSS) =0V
2.2
3.6
V
V(P6.x/Ax)
Analog input voltage
range (see Note 2)
All external Ax terminals. Analog inputs
selected in ADC12MCTLx register and P6Sel.x=1
V(AVSS) ≤ VAx ≤ V(AVCC)
0
VAVCC
V
I
Operating supply current
into AV
terminal
fADC12CLK =5.0 MHz
ADC12ON 1 REFON 0
VCC =2.2 V
0.65
1.3
mA
IADC12
into AVCC terminal
(see Note 3)
ADC12ON = 1, REFON = 0
SHT0=0, SHT1=0, ADC12DIV=0
VCC =3V
0.8
1.6
mA
I
Operating supply current
i t AV
t
i l
fADC12CLK =5.0 MHz
ADC12ON = 0,
REFON = 1, REF2_5V = 1
VCC =3V
0.5
0.8
mA
IREF+
into AVCC terminal
(see Note 4)
fADC12CLK =5.0 MHz
ADC12ON 0
VCC =2.2 V
0.5
0.8
mA
(see Note 4)
ADC12ON = 0,
REFON = 1, REF2_5V = 0
VCC =3V
0.5
0.8
mA
CI
Input capacitance
Only one terminal can be selected
at one time, Ax
VCC =2.2 V
40
pF
RI
Input MUX ON resistance
0V ≤ VAx ≤ VAVCC
VCC =3V
2000
NOTES: 1. The leakage current is defined in the leakage current table with Ax parameter.
2. The analog input voltage range must be within the selected reference voltage range VR+ to VR-- for valid conversion results.
3. The internal reference supply current is not included in current consumption parameter IADC12.
4. The internal reference current is supplied via terminal AVCC. 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
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VeREF+
Positive external
reference voltage input
VeREF+ >VREF--/VeREF--
(see Note 2)
1.4
VAVCC
V
VREF-- /VeREF--
Negative external
reference voltage input
VeREF+ >VREF--/VeREF--
(see Note 3)
0
1.2
V
(VeREF+ --
VREF--/VeREF--)
Differential external
reference voltage input
VeREF+ >VREF--/VeREF--
(see Note 4)
1.4
VAVCC
V
IVeREF+
Static input current
0V ≤VeREF+ ≤ VAVCC
VCC =2.2 V/3V
±1
A
IVREF--/VeREF--
Static input current
0V ≤ VeREF-- ≤ VAVCC
VCC =2.2 V/3V
±1
A
NOTES: 1. The external reference is used during conversion to charge and discharge the capacitance array. The input capacitance, CI,isalso
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.
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