Datasheet

MSP430x43x1, MSP430x43x, MSP430x44x1, MSP430x44x
MIXED SIGNAL MICROCONTROLLER
SLAS344G − JANUARY 2002 − REVISED OCTOBER 2009
43
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
Comparator_A (see Note 1)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
I
CAON 1 CARSEL 0 CAREF 0
2.2 V 25 40
A
I
(CC)
CAON=1, CARSEL=0, CAREF=0
3 V 45 60
µA
I
CAON=1, CARSEL=0, CAREF=1/2/3,
2.2 V 30 50
A
I
(Refladder/RefDiode)
CAON=1
,
CARSEL=0
,
CAREF=1/2/3
,
No load at P1.6/CA0 and P1.7/CA1
3 V 45 71
µA
V
(Ref025)
Voltage @ 0.25 V
CC
node
V
CC
PCA0=1, CARSEL=1, CAREF=1,
No load at P1.6/CA0 and P1.7/CA1
2.2 V / 3 V 0.23 0.24 0.25
V
(Ref050)
Voltage @ 0.5 V
CC
node
V
CC
PCA0=1, CARSEL=1, CAREF=2,
No load at P1.6/CA0 and P1.7/CA1
2.2V / 3 V 0.47 0.48 0.5
V
See Figure 6 and Figure 7
PCA0=1, CARSEL=1, CAREF=3,
No load at P1 6/CA0 and P1 7/CA1;
2.2 V 390 480 540
mV
V
(RefVT)
See Figure 6 and Figure 7
No load at P1.6/CA0 and P1.7/CA1;
T
A
= 85°C
3 V 400 490 550
mV
V
IC
Common-mode input
voltage range
CAON=1 2.2 V / 3 V 0 V
CC
−1 V
V
p
−V
S
Offset voltage See Note 2 2.2 V / 3 V −30 30 mV
V
hys
Input hysteresis CAON = 1 2.2 V / 3 V 0 0.7 1.4 mV
T
A
= 25°C,
2.2 V 160 210 300
ns
t
T
A
=
25 C
,
Overdrive 10 mV, without filter: CAF = 0
3 V 80 150 240
ns
t
(response LH)
T
A
= 25°C
2.2 V 1.4 1.9 3.4
s
T
A
=
25 C
Overdrive 10 mV, with filter: CAF = 1
3 V 0.9 1.5 2.6
µs
T
A
= 25°C
2.2 V 130 210 300
ns
t
T
A
=
25 C
Overdrive 10 mV, without filter: CAF = 0
3 V 80 150 240
ns
t
(response HL)
T
A
= 25°C,
2.2 V 1.4 1.9 3.4
s
T
A
=
25 C
,
Overdrive 10 mV, with filter: CAF = 1
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.