Datasheet

MSP430FG43x
MIXED SIGNAL MICROCONTROLLER
SLAS380C − APRIL 2004 − REVISED MARCH 2011
26
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
electrical characteristics over recommended 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
A
I
(CC)
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 P1 6/CA0 and
V
CC
= 2.2 V 30 50
A
I
(Refladder/RefDiode)
No load at P1.6/CA0 and
P1.7/CA1
V
CC
= 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
V
CC
= 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
V
CC
= 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;
V
CC
= 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
V
CC
= 3 V 400 490 550
mV
V
IC
Common-mode input
voltage range
CAON=1 V
CC
= 2.2 V / 3 V 0 V
CC
−1 V
V
p
−V
S
Offset voltage See Note 2 VCC = 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,
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 80 150 240
ns
t
(response LH)
T
A
= 25°C
V
CC
= 2.2 V 1.4 1.9 3.4
s
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
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,
V
CC
= 2.2 V 1.4 1.9 3.4
s
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.