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参数资料
型号： MSP430F1232IRHBT
厂商： TEXAS INSTRUMENTS INC
元件分类： 微控制器/微处理器
英文描述： 16-BIT, FLASH, 8 MHz, RISC MICROCONTROLLER, PQCC32
封装： PLASTIC, QFN-32
文件页数： 18/52页
文件大小： 1174K
代理商： MSP430F1232IRHBT
MSP430x11x2, MSP430x12x2
MIXED SIGNAL MICROCONTROLLER
SLAS361D JANUARY 2002 REVISED AUGUST 2004
25
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
10-bit ADC, power supply and input range conditions (see Note 1)
PARAMETER
TEST CONDITIONS
MIN
NOM
MAX
UNIT
VCC
Analog supply voltage
VSS = 0 V
2.2
3.6
V
V(P6.x/Ax)
Analog input voltage
range (see Note 2)
All Ax terminals. Analog inputs
selected in ADC10AE register and PxSel.x=1
VSS ≤ VPx.x/Ax ≤ VCC
0
VCC
V
Operating supply current
fADC10CLK = 5.0 MHz
ADC10ON = 1, REFON = 0
VCC = 2.2 V
0.52
1.05
IADC10
into VCC terminal
(see Note 3)
ADC10ON = 1, REFON = 0
ADC10SHT0=1, ADC10SHT1=0,
ADC10DIV=0
VCC = 3 V
0.6
1.2
mA
IREF+
Reference operating
supply current,
reference buffer disabled
(see Note 4)
fADC10CLK = 5.0 MHz
ADC10ON = 0,
REFON = 1, REF2_5V = x;
REFOUT = 0
VCC =
2.2V/3 V
0.25
0.4
mA
Reference buffer
fADC10CLK = 5.0 MHz
ADC10ON = 0,
ADC10SR = 0
1.1
1.4
IREFB
operating supply current
(see Note 4)
ADC10ON = 0,
REFON = 1, REF2_5V = 0
REFOUT = 1
ADC10SR = 1
0.46
0.55
mA
CI
Input capacitance
Only one terminal can be selected
at one time, Px.x/Ax
VCC = 2.2 V
27
pF
RI
Input MUX ON resistance
0V
≤ VAx ≤ VCC
VCC = 3 V
2000
Not production tested, limits verified by design
NOTES:
1. The leakage current is defined in the leakage current table with Px.x/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 IADC10.
4. The internal reference current is supplied via terminal VCC. Consumption is independent of the ADC10ON control bit, unless a
conversion is active. The REFON bit enables the built-in reference to settle before starting an A/D conversion.
10-bit ADC, external reference (see Note 1)
PARAMETER
TEST CONDITIONS
VCC
MIN
NOM
MAX
UNIT
VeREF+
Positive external
reference voltage input
VeREF+ > VREF/VeREF (see Note 2)
1.4
VCC
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
VCC
V
IVeREF+
Static input current
0V
≤VeREF+ ≤ VCC
2.2 V/3 V
±1
A
IVREF/VeREF
Static input current
0V
≤ VeREF ≤ VCC
2.2 V/3 V
±1
A
NOTES:
1. The external reference is used during conversion to charge and discharge the capacitance array. The input capacitance, CI, 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 10-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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