Datasheet

MSP430F41x2
MIXED SIGNAL MICROCONTROLLER
SLAS648E -- APRIL 2009 -- REVISED MARCH 2011
43
POST OFFICE BOX 655303  DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
10-bit ADC, timing parameters
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
f
A
D
C
1
0
i
n
p
t
c
l
o
c
k
f
r
e
q
e
n
c
For specified
p
er
f
ormance o
f
ADC10SR = 0 2.2 V/3 V 0.45 6.3
M
H
f
ADC10CLK
A
DC10 input clock
f
requency
p
e
r
f
o
r
m
a
n
c
e
o
f
ADC10 linearity
parameters
ADC10SR = 1 2.2 V/3 V 0.45 1.5
MHz
f
ADC10OSC
ADC10 built-in oscillator frequency
ADC10DIVx = 0, ADC10SSELx = 0
f
ADC10CLK =
f
ADC10OSC
2.2 V/3 V 3.7 6.3 MHz
t
C
o
n
e
r
s
i
o
n
t
i
m
e
ADC10 built-in oscillator,
ADC10SSELx = 0
f
ADC10CLK =
f
ADC10OSC
2.2 V/3 V 2.06 3.51 s
t
CONVERT
Conversion time
f
ADC10CLK
from ACLK, MCLK or
SMCLK: ADC10SSELx  0
13
ADC10DIV
1/f
ADC10CLK
s
t
ADC10ON
Turn on settling time of the ADC SeeNote1 100 ns
NOTE 1: The condition is that the error in a conversion started after t
ADC10ON
is less than 0.5 LSB. The reference and input signals are already
settled.
10-bit ADC, linearity parameters
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
E
I
Integral linearity error 2.2 V/3 V 1 LSB
E
D
Differential linearity error 2.2 V/3 V 1 LSB
E
O
Offset error
Source impedance R
S
< 100  2.2 V/3 V 1 LSB
SREFx = 010, Unbuffered external reference, V
eREF+ =
1.5 V 2.2 V 1.1 2 LSB
SREFx = 010, Unbuffered external reference, V
eREF+ =
2.5 V 3V 1.1 2 LSB
E
G
Gain error
SREFx = 011, Buffered external reference (see Note 2),
V
eREF+ =
1.5 V
2.2 V 1.1 4 LSB
SREFx = 011, Buffered external reference (see Note 2),
V
eREF+ =
2.5 V
3V 1.1 3 LSB
SREFx = 010, Unbuffered external reference, V
eREF+ =
1.5 V 2.2 V 2 5 LSB
SREFx = 010, Unbuffered external reference, V
eREF+ =
2.5 V 3V 2 5 LSB
E
T
Total unadjusted error
SREFx = 011, Buffered external reference (see Note 2),
V
eREF+ =
1.5 V
2.2 V 2 7 LSB
SREFx = 011, Buffered external reference (see Note 2),
V
eREF+ =
2.5 V
3V 2 6 LSB
NOTE 1: The reference buffer’s offset adds to the gain and total unadjusted error.