參數(shù)資料
型號(hào)： MSP430F2274MRHAEP
廠商： TEXAS INSTRUMENTS INC
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, RISC MICROCONTROLLER, PQCC40
封裝： GREEN, PLASTIC, MO-220VJJD-2, VQFN-40
文件頁(yè)數(shù)： 39/79頁(yè)
文件大?。?/td> 1274K
代理商： MSP430F2274MRHAEP
SLAS614C – SEPTEMBER 2008 – REVISED JULY 2010
www.ti.com
10-Bit ADC, Temperature Sensor and Built-In VMID – Electrical Characteristics
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA
VCC
MIN
TYP
MAX
UNIT
2.2 V
40
120
Temperature sensor
REFON = 0, INCHx = 0Ah,
ISENSOR
–55°C to 125°C
mA
supply current(1)
TA = 25°C
3 V
60
160
ADC10ON = 1,
TCSENSOR
–55°C to 125°C
2.2 V/3 V
3.44
3.55
3.66 mV/°C
INCHx = 0Ah(2)
ADC10ON = 1,
VOffset,Sensor
Sensor offset voltage
–55°C to 125°C
-100
100
mV
INCHx = 0Ah(2)
Temperature sensor voltage
at TA = 125°C (T version
–55°C to 125°C
1265
1365
1465
only)
Temperature sensor voltage
–55°C to 125°C
1195
1295
1395
at TA = 85°C
VSensor
Sensor output voltage(3)
2.2 V/3 V
mV
Temperature sensor voltage
–55°C to 125°C
985
1085
1185
at TA = 25°C
Temperature sensor voltage
–55°C to 125°C
895
995
1095
at TA = 0°C
ADC10ON = 1, INCHx = 0Ah,
Sample time required
tSensor(sample)
Error of conversion result
–55°C to 125°C
2.2 V/3 V
30
ms
if channel 10 is selected(4)
≤ 1 LSB
2.2 V
NA
Current into divider
IVMID
ADC10ON = 1, INCHx = 0Bh
–55°C to 125°C
mA
at channel 11(5)
3 V
NA
2.2 V
1.06
1.1
1.14
ADC10ON = 1, INCHx = 0Bh,
VMID
VCC divider at channel 11
–55°C to 125°C
V
VMID is 0.5 × VCC
3 V
1.46
1.5
1.54
ADC10ON = 1, INCHx = 0Bh,
2.2 V
1400
Sample time required
tVMID(sample)
Error of conversion result
–55°C to 125°C
ns
if channel 11 is selected(6)
3 V
1220
≤ 1 LSB
(1)
The sensor current ISENSOR is consumed if (ADC10ON = 1 and REFON = 1) or (ADC10ON = 1 and INCH = 0Ah and sample signal is
high). When REFON = 1, ISENSOR is included in IREF+. When REFON = 0, ISENSOR applies during conversion of the temperature sensor
input (INCH = 0Ah).
(2)
The following formula can be used to calculate the temperature sensor output voltage:
VSensor,typ = TCSensor (273 + T [°C] ) + VOffset,sensor [mV] or
VSensor,typ = TCSensor T [°C] + VSensor(TA = 0°C) [mV]
(3)
Results based on characterization and/or production test, not TCSensor or VOffset,sensor.
(4)
The typical equivalent impedance of the sensor is 51 k
. The sample time required includes the sensor-on time tSENSOR(on).
(5)
No additional current is needed. The VMID is used during sampling.
(6)
The on-time tVMID(on) is included in the sampling time tVMID(sample); no additional on time is needed.
Operational Amplifier (OA) Supply Specifications – Electrical Characteristics
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA
VCC
MIN
TYP
MAX
UNIT
VCC
Supply voltage range
–55°C to 125°C
2.2
3.6
V
Fast Mode
–55°C to 125°C
180
290
ICC
Supply current(1)
Medium Mode
–55°C to 125°C
2.2 V/3 V
110
190
mA
Slow Mode
–55°C to 125°C
50
80
PSSR
Power-supply rejection ratio
Noninverting
2.2 V/3 V
70
dB
(1)
Corresponding pins configured as OA inputs and outputs, respectively.
44
Copyright 2008–2010, Texas Instruments Incorporated
Product Folder Link(s): MSP430F2274-EP
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