Datasheet

MSP430F471x3, MSP430F471x6, MSP430F471x7
MIXED SIGNAL MICROCONTROLLER
SLAS626C -- OCTOBER 2008 -- REVISED MARCH 2011
56
POST OFFICE BOX 655303  DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
typical characteristics -- SD16_A SINAD performance over OSR
OSR
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
100.0
10.00 100.00 1000.00
SINAD -- dB
Figure 26. SINAD performance over OSR, f
SD16
= 1 MHz, SD16REFON = 1, SD16GAINx = 1
SD16_A, temperature sensor and built--in V
CC
sense
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
TC
Sensor
Sensor temperature
coefficient
1.18 1.32 1.46 mV/K
V
Offset,sensor
Sensor offset voltage --100 100 mV
S
t
t
l
t
Temperature sensor voltage at T
A
=85C 3V 435 475 515
V
Sensor
Sensor output voltage
(
s
e
e
N
o
t
e
2
)
Temperature sensor voltage at T
A
=25C 3V 355 395 435
mV
V
S
e
n
s
o
r
(
see
N
o
t
e
2
)
Temperature sensor voltage at T
A
=0C 3V 320 360 400
m
V
V
CC,Sense
V
CC
divider at input 5 f
SD16
= 1 MHz, SD16OSRx = 256, SD16REFON = 1 0.08 1/11 0.1 V
CC
R
Source,VCC
Source resistance of
V
CC
divider at input 5
20 k
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
= 1 MHz, SD16OSRx = 256, SD16REFON = 1.