參數(shù)資料
型號: MSP430X43X1
廠商: Texas Instruments, Inc.
英文描述: MIXED SIGNAL MICROCONTROLLER
中文描述: 混合信號微控制器
文件頁數(shù): 51/73頁
文件大?。?/td> 1156K
代理商: MSP430X43X1
MSP430x43x1, MSP430x43x, MSP430x44x
MIXED SIGNAL MICROCONTROLLER
SLAS344F JANUARY 2002 REVISED MAY 2007
51
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
12-bit ADC, temperature sensor and built-in V
MID
PARAMETER
TEST CONDITIONS
V
CC
2.2 V
MIN
NOM
MAX
UNIT
I
SENSOR
Operating supply current into
AV
CC
terminal (see Note 1)
REFON = 0, INCH = 0Ah,
ADC12ON=NA, T
A
= 25 C
40
120
3 V
60
160
μ
A
V
SENSOR
ADC12ON = 1, INCH = 0Ah,
T
A
= 0
°
C
2.2 V
986
986
±
5%
986
±
5%
3.55
±
3%
3.55
±
3%
mV
3 V
986
TC
SENSOR
ADC12ON = 1, INCH = 0Ah
1 INCH
2.2 V
3.55
mV/
°
C
3 V
3.55
t
SENSOR(sample)
Sample time required if channel
10 is selected (see Note 2)
ADC12ON = 1, INCH = 0Ah,
Error of conversion result
1 LSB
2.2 V
30
3 V
30
μ
s
I
VMID
Current into divider at channel 11
ADC12ON = 1, INCH = 0Bh,
(see Note 3)
2.2 V
NA
3 V
NA
μ
A
V
MID
AV
CC
divider at channel 11
ADC12ON = 1, INCH = 0Bh,
V
MID
is ~0.5 x V
AVCC
2.2 V
1.1
1.1
±
0.04
1.50
±
0.04
V
3 V
1.5
t
VMID(sample)
Sample time required if channel
11 is selected (see Note 4)
ADC12ON = 1, INCH = 0Bh,
Error of conversion result
1 LSB
2.2 V
1400
ns
3 V
1220
NOTES:
1. The sensor current I
SENSOR
is consumed if (ADC12ON = 1 and REFON=1), or (ADC12ON=1 AND INCH=0Ah and sample signal
is high). Therefore it includes the constant current through the sensor and the reference.
2. The typical equivalent impedance of the sensor is 51 k
Ω
. The sample time required includes the sensor-on time t
SENSOR(on)
.
3. No additional current is needed. The V
MID
is used during sampling.
4. The on-time t
VMID(on)
is included in the sampling time t
VMID(sample)
; no additional on time is needed.
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