Datasheet
MSP430F471x3, MSP430F471x6, MSP430F471x7
MIXED SIGNAL MICROCONTROLLER
SLAS626C -- OCTOBER 2008 -- REVISED MARCH 2011
55
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
SD16_A, performance (f
SD16
= 1 MHz, SD16OSRx = 256, SD16REFON = 1)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
SD16GAINx = 1,
Signal amplitude V
PP
= 500 mV
3V 83 85
SD16GAINx = 2,
Signal amplitude V
PP
= 250 mV
3V 81 84
S
I
N
A
D
Si
g
nal-to-noise + distortion
SD16GAINx = 4,
Signal amplitude V
PP
= 125 mV
f
IN
=50Hz,
1
0
0
H
z
3V 76 79
d
B
SIN
A
D
S
i
g
n
a
l
t
o
n
o
i
s
e
+
d
i
s
t
o
r
t
i
o
n
ratio
SD16GAINx = 8,
Signal amplitude V
PP
=62mV
100 Hz
(see Note 1)
3V 73 76
dB
SD16GAINx = 16,
Signal amplitude V
PP
=31mV
3V 69 73
SD16GAINx = 32,
Signal amplitude V
PP
=15mV
3V 62 69
SD16GAINx = 1 3V 0.97 1.00 1.02
SD16GAINx = 2 3V 1.90 1.96 2.02
G
SD16GAINx = 4 3V 3.76 3.86 3.96
G
Nominal gain
SD16GAINx = 8
3V 7.36 7.62 7.84
SD16GAINx = 16 3V 14.56 15.04 15.52
SD16GAINx = 32 3V 27.20 28.35 29.76
E
O
f
f
s
e
t
e
r
r
o
r
SD16GAINx = 1 3V 0.2
%
F
S
R
E
OS
O
f
f
set error
SD16GAINx = 32
3V 1.5
%FSR
d
E
/
d
T
O
f
f
set error tem
p
erature
SD16GAINx = 1 3V 4 20
p
p
m
dE
OS
/
dT
O
f
f
s
e
t
e
r
r
o
r
t
e
m
p
e
r
a
t
u
r
e
coefficient
SD16GAINx = 32
3V 20 100
p
p
m
FSR/_C
C
M
R
R
Common-mode re
j
ection
SD16GAINx = 1, Common-mode input signal:
V
ID
= 500 mV, f
IN
= 50 Hz, 100 Hz
3V 90
d
B
CMRR
C
o
m
m
o
n
m
o
d
e
r
e
j
e
c
t
i
o
n
ratio
SD16GAINx = 32, Common-mode input signal:
V
ID
=16mV,f
IN
= 50 Hz, 100 Hz
3V 75
dB
AC PSRR
AC power supply rejection
ratio
SD16GAINx = 1, V
CC
=3V 100 mV, f
VCC
=50Hz 3V 80 dB
X
T
Crosstalk SD16GAINx = 1, V
ID
= 500 mV, f
IN
= 50 Hz, 100 Hz 3V <--100 dB
NOTE 1: The following voltages were applied to the SD16_A inputs:
V
IN,A+
(t) = 0V + V
PP
/2 sin(2f
IN
t)
V
IN,A--
(t) = 0V -- V
PP
/2 sin(2f
IN
t)
resulting in a differential voltage of V
diff
=V
IN,A+
(t) -- V
IN,A--
(t) = V
PP
sin(2f
IN
t)