Datasheet
MSP430C11x1, MSP430F11x1A
MIXED SIGNAL MICROCONTROLLER
SLAS241I − SEPTEMBER 1999 − REVISED DECEMBER 2008
20
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
Comparator_A (see Note 1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
I
CAON=1 CARSEL=0 CAREF=0
V
CC
= 2.2 V 25 40
μA
I
(DD)
CAON=1, CARSEL=0, CAREF=0
V
CC
= 3 V 45 60
μA
I
CAON=1, CARSEL=0,
CAREF 1/2/3 no load at
V
CC
= 2.2 V 30 50
μA
I
(Refladder/RefDiode)
CAREF=1/2/3, no load at
P2.3/CA0/TA1 and P2.4/CA1/TA2
V
CC
= 3 V 45 71
μA
V
(IC)
Common-mode input
voltage
CAON =1 V
CC
= 2.2 V/3 V 0 V
CC
−1 V
V
(Ref025)
Voltage @ 0.25 V
CC
node
V
CC
PCA0=1, CARSEL=1, CAREF=1,
No load at P2.3/CA0/TA1 and
P2.4/CA1/TA2
V
CC
= 2.2 V/3 V 0.23 0.24 0.25
V
(Ref050)
Voltage @ 0.5V
CC
node
V
CC
PCA0=1, CARSEL=1, CAREF=2,
No load at P2.3/CA0/TA1 and
P2.4/CA1/TA2
V
CC
= 2.2 V/3 V 0.47 0.48 0.5
V
(see Figure 6 and Figure 7)
PCA0=1, CARSEL=1, CAREF=3,
No load at P2 3/CA0/TA1 and
V
CC
= 2.2 V 390 480 540
mV
V
(RefVT)
(see Figure 6 and Figure 7)
No load at P2.3/CA0/TA1 and
P2.4/CA1/TA2, T
A
= 85°C
V
CC
= 3 V 400 490 550
mV
V
(offset)
Offset voltage See Note 2 V
CC
= 2.2 V/3 V −30 30 mV
V
hys
Input hysteresis CAON=1 V
CC
= 2.2 V/3 V 0 0.7 1.4 mV
T
A
= 25°C, Overdrive 10 mV,
V
CC
= 2.2 V 160 210 300
ns
t
T
A
=
25 C
,
Overdrive
10
mV
,
Without filter: CAF=0
V
CC
= 3 V 90 150 240
ns
t
(response
LH)
T
A
= 25°C, Overdrive 10 mV,
V
CC
= 2.2 V 1.4 1.9 3.4
μs
T
A
=
25 C
,
Overdrive
10
mV
,
With filter: CAF=1
V
CC
= 3 V 0.9 1.5 2.6
μs
T
A
= 25°C, Overdrive 10 mV,
V
CC
= 2.2 V 130 210 300
ns
t
T
A
=
25 C
,
Overdrive
10
mV
,
Without filter: CAF=0
V
CC
= 3 V 80 150 240
ns
t
(response
HL)
T
A
= 25°C, Overdrive 10 mV,
V
CC
= 2.2 V 1.4 1.9 3.4
μs
T
A
=
25 C
,
Overdrive
10
mV
,
With filter: CAF=1
V
CC
= 3 V 0.9 1.5 2.6
μs
NOTES: 1. The leakage current for the Comparator_A terminals is identical to I
lkg(Px.x)
specification.
2. The input offset voltage can be cancelled by using the CAEX bit to invert the Comparator_A inputs on successive measurements.
The two successive measurements are then summed together.