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| MSP430F42X0_07 Datasheet, PDF (30/63 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER | |||
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MSP430F42x0
MIXED SIGNAL MICROCONTROLLER
SLAS455D â MARCH 2005 â REVISED APRIL 2007
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
SD16_A, temperature sensor
TCSensor
PARAMETER
Sensor temperature
coefficient
TEST CONDITIONS
VCC MIN TYP MAX UNIT
1.18 1.32 1.46 mV/K
VOffset,sensor Sensor offset voltage
â100
100 mV
VSensor
Sensor output voltage
(see Note 2)
Temperature sensor voltage at TA = 85°C
Temperature sensor voltage at TA = 25°C
Temperature sensor voltage at TA = 0°C
3 V 435 475 515
3V
355 395 435 mV
3 V 320 360 400
NOTES: 1. The following formula can be used to calculate the temperature sensor output voltage:
VSensor,typ = TCSensor ( 273 + T [°C] ) + VOffset,sensor [mV]
2. Results based on characterization and/or production test, not TCSensor or VOffset,sensor.
SD16_A, built-in voltage reference
VREF
PARAMETER
Internal reference
voltage
TEST CONDITIONS
SD16REFON = 1, SD16VMIDON = 0
VCC MIN TYP MAX UNIT
3 V 1.14 1.20 1.26 V
IREF
Reference supply
current
SD16REFON = 1, SD16VMIDON = 0
3V
175 260 μA
TC
Temperature coefficient SD16REFON = 1, SD16VMIDON = 0
3V
18
50 ppm/K
CREF
VREF load capacitance SD16REFON = 1, SD16VMIDON = 0 (see Note 1)
ILOAD
VREF(I) maximum load
current
SD16REFON = 1, SD16VMIDON = 0
3V
100
nF
±200 nA
tON
Turn on time
SD16REFON = 0â>1, SD16VMIDON = 0,
CREF = 100nF
3V
5
ms
DC PSR
DC power supply
rejection, ÎVREF/ÎVCC
SD16REFON = 1, SD16VMIDON = 0, VCC = 2.5 V to 3.6 V
100
uV/V
NOTES: 1. There is no capacitance required on VREF. However, a capacitance of at least 100nF is recommended to reduce any reference
voltage noise.
SD16_A, reference output buffer
PARAMETER
TEST CONDITIONS
VREF,BUF
Reference buffer output
voltage
SD16REFON = 1, SD16VMIDON = 1
IREF,BUF
Reference Supply +
Reference output buffer
quiescent current
SD16REFON = 1, SD16VMIDON = 1
CREF(O)
ILOAD,Max
Required load
capacitance on VREF
Maximum load current
on VREF
Maximum voltage varia-
tion vs. load current
SD16REFON = 1, SD16VMIDON = 1
SD16REFON = 1, SD16VMIDON = 1
|ILOAD| = 0 to 1mA
tON
Turn on time
SD16REFON = 0â>1; SD16VMIDON = 1;
CREF = 470nF
VCC MIN TYP MAX UNIT
3V
1.2
V
3V
385 600 μA
470
nF
3V
±1 mA
3 V â15
+15 mV
3V
100
μs
30
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