MSP430X47X3_07 Datasheet, PDF (49/76 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430x47x3, MSP430x47x4
MIXED SIGNAL MICROCONTROLLER
SLAS545A − MAY 2007 − REVISED DECEMBER 2007
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
typical characteristics − SD16_A SNR/SINAD performance over OSR
100.0
95.0
90.0
SNR
85.0
SINAD
80.0
75.0
70.0
65.0
60.0
55.0
50.0
10.00
100.00
1000.00
OSR
Figure 26. SNR/SINAD performance over OSR, f_SD16 = 1MHz, SD16REFON = 1, SD16GAINx = 1
V_IN(t) = 1.2V + 500mV y sin(2p y 50Hz y t)
SD16_A, temperature sensor and built−in V_CC sense
PARAMETER
TEST CONDITIONS
V_CC
TC_Sensor
Sensor temperature
coefficient
V_{Offset,sensor} Sensor offset voltage
Temperature sensor voltage at T_A = 85°C
3V
V_Sensor
Sensor output voltage
(see Note 2)
Temperature sensor voltage at T_A = 25°C
3V
Temperature sensor voltage at T_A = 0°C
3V
V_CC,Sense
V_CC divider at input 5 f_SD16 = 32kHz, SD16OSRx = 256, SD16REFON = 1
R_Source,VCC
Source resistance of
V_CC divider at input 5
NOTES:
1. The following formula can be used to calculate the temperature sensor output voltage:
V_Sensor,typ = TC_Sensor ( 273 + T [°C] ) + V_{Offset,sensor} [mV]
2. Results based on characterization and/or production test, not TC_Sensor or V_{Offset,sensor}.
Measured with f_SD16 = 1MHz, SD16OSRx = 256, SD16REFON = 1.
MIN TYP MAX UNIT
1.18 1.32 1.46 mV/K
−100
100 mV
435 475 515
355 395 435 mV
320 360 400
0.08 1/11 0.10 V_CC
500
kΩ
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