icl8068cdd Intersil Corporation, icl8068cdd Datasheet - Page 12

• Manufacturer Part Number: icl8068cdd
• Description: 14-bit/16-bit, Microprocessor- Compatible, 2-chip, A/d Converter
• Manufacturer: Intersil Corporation

AN
AN
I/P
I/P
9
9
+AN
C
C
-AN
-
-
8
8
3
3
I/P
I/P
REF
REF
+
+
6
7
6
7
9
9
C
C
-
-
8
8
3
3
REF
REF
+
+
6
7
6
7
2
2
4
4
2
2
4
4
V
V
BUFFER
BUFFER
+
REF
+
REF
-
-
A1
A1
V
V
BUFFER
BUFFER
REF
REF
-
+
-
+
A1
A1
ICL8052/ICL7104, ICL8068/ICL7104
R
R
INT
INT
FIGURE 6B. PHASE II INTEGRATE INPUT
R
R
FIGURE 6C. PHASE III + DEINTEGRATE
INTEGRATOR
INTEGRATOR
INT
INT
FIGURE 6D. PHASE III DEINTEGRATE
+
+
-
-
A2
A2
FIGURE 6A. PHASE I AUTO-ZERO
C
C
C
C
AZ
AZ
INTEGRATOR
INTEGRATOR
INT
INT
+
+
-
-
A2
A2
C
C
C
C
AZ
1
1
AZ
INT
INT
1
1
COMP.
COMP.
+
+
-
-
A3
A3
5-17
COMP.
COMP.
+
+
-
-
A3
A3
CROSS.
CROSS.
ZERO
ZERO
DET.
DET.
CROSS.
CROSS.
ZERO
ZERO
DET.
DET.
POL
POL
POL
POL
D
D
D
CROSSING
CROSSING
ZERO
ZERO
POL
F/F
CL
F/F
F/F
CL
D
D
CL
CL
CL
CROSSING
CROSSING
ZERO
ZERO
F/F
CL
F/F
CL
CL
CL
Q
Q
Q
Q
Q
POL
PHASE II