參數(shù)資料
型號： MSP430F2132IRHBR
廠商： TEXAS INSTRUMENTS INC
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQCC32
封裝： GREEN, PLASTIC, QFN-32
文件頁數(shù)： 43/81頁
文件大?。?/td> 1738K
代理商： MSP430F2132IRHBR
MSP430F21x2
MIXED SIGNAL MICROCONTROLLER
SLAS578G -- NOVEMBER 2007 -- REVISED DECEMBER 2009
48
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
10-bit ADC, external reference (see Note 1)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
UNIT
V
Positive external reference input
VeREF+ >VeREF--,
SREF1 = 1, SREF0 = 0
1.4
VCC
V
VeREF+
Positive external reference input
voltage range (see Note 2)
VeREF-- ≤ VeREF+ ≤ (VCC -- 0.15 V)
SREF1=1,SREF0=1(seeNote3)
1.4
3.0
V
VeREF--
Negative external reference input
voltage range (see Note 4)
VeREF+ >VeREF--
0
1.2
V
VeREF
Differential external reference input
voltage range
VeREF =VeREF+ -- VeREF--
VeREF+ >VeREF-- (see Note 5)
1.4
VCC
V
I
Static input current into V
0V ≤ VeREF+ ≤ VCC,
SREF1 = 1, SREF0 = 0
2.2 V/3 V
±1
A
IVeREF+
Static input current into VeREF+
0V ≤ VeREF+ ≤ (VCC -- 0.15 V) ≤ 3V,
SREF1=1,SREF0=1(seeNote3)
2.2 V/3 V
0
A
IVeREF--
Static input current into VeREF--
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,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 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. Under this condition the external reference is internally buffered. The reference buffer is active and requires the reference buffer
supply current IREFB. The current consumption can be limited to the sample and conversion period with REBURST = 1.
4. The accuracy limits the maximum negative external reference voltage. Higher reference voltage levels may be applied with reduced
accuracy requirements.
5. The accuracy limits the minimum external differential reference voltage. Lower differential reference voltage levels may be applied
with reduced accuracy requirements.
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