®

8

DDC112

FIGURE 5. Diagrams for the Four Configurations of the Front End Integrators of the DDC112.

FIGURE 4. Basic Integrator Timing Diagram as Illustrated in Figure 3.

To Converter

S

RESET

S

REF2

S

A/D

V

REF

S

REF1

S

INT

IN

C

F

a) Reset Configuration

To Converter

S

RESET

S

REF2

S

A/D

V

REF

S

REF1

S

INT

IN

C

F

c) Integrate Configuration

To Converter

S

RESET

S

REF2

S

A/D

V

REF

S

REF1

S

INT

IN

C

F

d) Convert Configuration

To Converter

S

RESET

S

REF2

S

A/D

V

REF

S

REF1

S

INT

IN

C

F

b) Wait Configuration

S

A/D1A

V

REF

Integrator A

Voltage Output

Configuration of

Integrator A

Wait

Convert

Wait

Convert

Integrate

S

REF1

S

REF2

S

INTA

S

INTB

S

RESET

CONV

CLK