Datasheet

MSP430G2x52
MSP430G2x12
SLAS722G –DECEMBER 2010–REVISED MAY 2013 www.ti.com
Comparator_A+
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
I
(DD)
CAON = 1, CARSEL = 0, CAREF = 0 3 V 45 µA
CAON = 1, CARSEL = 0, CAREF = 1/2/3,
I
(Refladder/RefDiode)
3 V 45 µA
No load at CA0 and CA1
V
CC
V
(IC)
Common-mode input voltage CAON = 1 3 V 0 V
– 1
PCA0 = 1, CARSEL = 1, CAREF = 1,
V
(Ref025)
(Voltage at 0.25 V
CC
node) ÷ V
CC
3 V 0.24
No load at CA0 and CA1
PCA0 = 1, CARSEL = 1, CAREF = 2,
V
(Ref050)
(Voltage at 0.5 V
CC
node) ÷ V
CC
3 V 0.48
No load at CA0 and CA1
PCA0 = 1, CARSEL = 1, CAREF = 3,
V
(RefVT)
See Figure 18 and Figure 19 3 V 490 mV
No load at CA0 and CA1, T
A
= 85°C
V
(offset)
Offset voltage
(1)
3 V ±10 mV
V
hys
Input hysteresis CAON = 1 3 V 0.7 mV
T
A
= 25°C, Overdrive 10 mV,
120 ns
Without filter: CAF = 0
Response time
t
(response)
3 V
(low-high and high-low)
T
A
= 25°C, Overdrive 10 mV,
1.5 µs
With filter: CAF = 1
(1) 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.
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