MSP430F41x2
MIXED SIGNAL MICROCONTROLLER
SLAS648E -- APRIL 2009 -- REVISED MARCH 2011
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
MIN
TYP
MAX UNIT
CC
For specified
ADC10SR = 0
ADC10SR = 1
2.2 V/3 V
2.2 V/3 V
2.2 V/3 V
0.45
6.3
performance of
ADC10 linearity
parameters
f
f
ADC10 input clock frequency
MHz
1.5
ADC10CLK
ADC10OSC
0.45
3.7
ADC10DIVx = 0, ADC10SSELx = 0
ADC10 built-in oscillator frequency
6.3 MHz
f
f
ADC10CLK = ADC10OSC
ADC10 built-in oscillator,
ADC10SSELx = 0
2.2 V/3 V
2.06
3.51
100
s
f
f
ADC10CLK = ADC10OSC
t
t
Conversion time
CONVERT
ADC10ON
13
f
from ACLK, MCLK or
ADC10CLK
ADC10DIV
1/f
s
SMCLK: ADC10SSELx 0
ADC10CLK
Turn on settling time of the ADC
See Note 1
ns
NOTE 1: The condition is that the error in a conversion started after t
settled.
is less than 0.5 LSB. The reference and input signals are already
ADC10ON
10-bit ADC, linearity parameters
PARAMETER
TEST CONDITIONS
V
MIN
TYP
MAX UNIT
1 LSB
1 LSB
1 LSB
2 LSB
2 LSB
CC
E
E
E
Integral linearity error
Differential linearity error
Offset error
2.2 V/3 V
2.2 V/3 V
2.2 V/3 V
2.2 V
I
D
O
Source impedance R < 100
S
SREFx = 010, Unbuffered external reference, V
1.5 V
2.5 V
1.1
1.1
eREF+ =
SREFx = 010, Unbuffered external reference, V
3 V
eREF+ =
SREFx = 011, Buffered external reference (see Note 2),
1.5 V
Gain error
E
E
2.2 V
3 V
1.1
1.1
4 LSB
3 LSB
G
V
eREF+ =
SREFx = 011, Buffered external reference (see Note 2),
2.5 V
V
eREF+ =
SREFx = 010, Unbuffered external reference, V
SREFx = 010, Unbuffered external reference, V
1.5 V
2.5 V
2.2 V
3 V
2
2
5 LSB
5 LSB
eREF+ =
eREF+ =
SREFx = 011, Buffered external reference (see Note 2),
1.5 V
Total unadjusted error
2.2 V
3 V
2
2
7 LSB
6 LSB
T
V
eREF+ =
SREFx = 011, Buffered external reference (see Note 2),
2.5 V
V
eREF+ =
NOTE 1: The reference buffer’s offset adds to the gain and total unadjusted error.
43
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