APT7843 データシートの表示（PDF） - Anpec Electronics
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APT7843 Datasheet PDF : 18 Pages
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APT7843
PENIRQ
X+
X-
+Vcc VREF
A2-A0
SER/DFR
(Shown 001B) (Shown HIGH)
Y+
Y-
+IN +REF
-IN CONVERTER
-REF
IN3
IN4
GND
FIGURE 2. Simplified Diagram of Analog Input
A2
A1
A0
X+
Y+
IN3
IN4
-IN X SWITCHES Y SWITCHES
0
0
1
+IN
GND
OFF
ON
1
0
1
+IN
GND
ON
OFF
0
1
0
+IN
GND
OFF
OFF
1
1
0
+IN GND
OFF
OFF
TABLE I. Input C onfiguration, Single-Ended Reference Mode (SER/ DFR HIGH).
+REF
+VREF
+VREF
+VREF
+VREF
-REF
GND
GND
GND
GND
A2
A1
A0
X+
Y+
IN3
IN4
-IN X SWITCHES Y SWITCHES
0
0
1
+IN
-Y
OFF
ON
1
0
1
+IN
-X
ON
OFF
0
1
0
+IN
GND
OFF
OFF
1
1
0
+IN GND
OFF
OFF
TABLE II. Input Configuration, Differential Reference Mode (SER/ DFR LOW).
+REF
+Y
+X
+VREF
+VREF
-REF
-Y
-X
GND
GND
Copyright ANPEC Electronics Corp.
8
Rev. A.8 - Apr., 2002
www.anpec.com.tw
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