ICL8068/ICL7104 View Datasheet(PDF) - Intersil

Part Name

Description

Manufacturer

ICL8068/ICL7104

14-Bit/16-Bit, Microprocessor Compatible, 2-Chip, A/D Converter

Intersil 

ICL8052/ICL7104, ICL8068/ICL7104

AN

I/P

3

86

97

RINT

CINT

BUFFER

-

A1

+

2

INTEGRATOR

-

A2

+

COMP.

-

A3

+

CAZ

ZERO

CROSS.

DET.

-+

CREF

4 VREF

1

POL

FIGURE 6A. PHASE I AUTO-ZERO

AN

I/P

3

86

97

RINT

CINT

BUFFER

-

A1

+

2

INTEGRATOR

-

A2

+

COMP.

-

A3

+

CAZ

ZERO

CROSS.

DET.

-+

CREF

+AN

I/P

3

86

97

4 VREF

1

POL

FIGURE 6B. PHASE II INTEGRATE INPUT

RINT

CINT

BUFFER

-

A1

+

2

INTEGRATOR

-

A2

+

COMP.

-

A3

+

CAZ

ZERO

CROSS.

DET.

-+

CREF

4

VREF

1

POL

FIGURE 6C. PHASE III + DEINTEGRATE

-AN

I/P

3

86

97

RINT

CINT

BUFFER

-

A1

+

2

INTEGRATOR

-

A2

+

COMP.

-

A3

+

CAZ

ZERO

CROSS.

DET.

-+

CREF

4

VREF

1

POL

FIGURE 6D. PHASE III DEINTEGRATE

D

Q

ZERO

CROSSING

F/F

CL

CL

D POL Q

F/F

CL

D

Q

ZERO

CROSSING

F/F

CL

CL

POL

PHASE II

D

Q

ZERO

CROSSING

F/F

CL

CL

D

Q

ZERO

CROSSING

F/F

CL

CL

5-17

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