参数资料
型号: MSP430F2012IRSAR
厂商: TEXAS INSTRUMENTS INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQCC16
封装: GREEN, PLASTIC, QFN-16
文件页数: 35/92页
文件大小: 1672K
代理商: MSP430F2012IRSAR
MSP430F20x3
MSP430F20x2
MSP430F20x1
SLAS491H
– AUGUST 2005 – REVISED AUGUST 2011
10-Bit ADC, Built-In Voltage Reference (MSP430F20x2)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
UNIT
IVREF+ ≤ 1 mA, REF2_5V = 0
2.2
Positive built-in
VCC,REF+
reference analog
IVREF+ ≤ 0.5 mA, REF2_5V = 1
2.8
V
supply voltage range
IVREF+ ≤ 1 mA, REF2_5V = 1
2.9
IVREF+ ≤ IVREF+max, REF2_5V = 0
2.2 V/3 V
1.41
1.5
1.59
Positive built-in
VREF+
V
reference voltage
IVREF+ ≤ IVREF+max, REF2_5V = 1
3 V
2.35
2.5
2.65
2.2 V
±0.5
Maximum VREF+ load
ILD,VREF+
mA
current
3 V
±1
IVREF+ = 500 A ± 100 A,
Analog input voltage VAx ≈ 0.75 V,
2.2 V/3 V
±2
REF2_5V = 0
VREF+ load regulation
LSB
IVREF+ = 500 A ± 100 A,
Analog input voltage VAx ≈ 1.25 V,
3 V
±2
REF2_5V = 1
IVREF+ = 100 A to 900 A,
ADC10SR = 0
400
VREF+ load regulation
VAx ≈ 0.5 x VREF+,
3 V
ns
response time
Error of conversion result
ADC10SR = 1
2000
≤1 LSB
Maximum capacitance
IVREF+ ≤ ±1 mA,
CVREF+
2.2 V/3 V
100
pF
at pin VREF+
(1)
REFON = 1, REFOUT = 1
Temperature
IVREF+ = constant with
TCREF+
2.2 V/3 V
±100
ppm/
°C
coefficient
0 mA
≤ IVREF+ ≤ 1 mA
Settling time of internal
IVREF+ = 0.5 mA, REF2_5V = 0,
tREFON
3.6 V
30
s
reference voltage(2)
REFON = 0 to 1
IVREF+ = 0.5 mA,
ADC10SR = 0
1
REF2_5V = 0,
2.2 V
REFON = 1,
ADC10SR = 1
2.5
REFBURST = 1
Settling time of
tREFBURST
s
reference buffer(2)
IVREF+ = 0.5 mA,
ADC10SR = 0
2
REF2_5V = 1,
3 V
REFON = 1,
ADC10SR = 1
4.5
REFBURST = 1
(1)
The capacitance applied to the internal buffer operational amplifier, if switched to terminal P1.4/SMCLK/A4/VREF+/VeREF+/TCK
(REFOUT = 1), must be limited; otherwise, the reference buffer may become unstable.
(2)
The condition is that the error in a conversion started after tREFON or tRefBuf is less than ±0.5 LSB.
40
Copyright
2005–2011, Texas Instruments Incorporated
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