Datasheet

MSP430F47x
MIXED SIGNAL MICROCONTROLLER
SLAS629A -- MARCH 2009 -- REVISED APRIL 2009
44
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
SD16_A, linearity (f
SD16
= 1MHz, SD16REFON = 1, SD16BUFx = 00)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
SD16OSR = 256, SD16GAINx = 000b,
Signal Amplitude = 500 mV
3V 1.5
L
S
B
I
N
L
I
n
t
e
g
r
a
l
n
o
n
l
i
n
e
a
r
i
t
y
SD16OSR = 256, SD16GAINx = 101b,
Signal Amplitude = 15 mV
3V 6
L
SB
IN
L
Integral non-linearity
SD16OSR = 1024, SD16GAINx = 000b,
Signal Amplitude = 500 mV
3V 0.8
L
S
B
SD16OSR = 1024, SD16GAINx = 101b,
Signal Amplitude = 15 mV
3V 3.5
L
SB
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 19. SINAD performance over OSR, f
SD16
= 1MHz, 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
SeeNote1 1.18 1.32 1.46 mV/K
V
Offset,sensor
Sensor offset voltage SeeNote1 --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
3
)
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
3
)
Temperature sensor voltage at T
A
=0°C(seeNote1) 3V 320 360 400
m
V
V
CC,Sense
V
CC
divider at input 5 f
SD16
= 32kHz, SD16OSRx = 256, SD16REFON = 1 0.08 1/11 0.1 V
NOTES: 1. Not production tested, limits characterized.
2. 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]
3. Results based on characterization and/or production test, not TC
Sensor
or V
Offset,sensor
.