AD7884/AD7885

REV. C

–4–

CS

RD

DATA

BUSY

CONVST

CONVERT

t

Hi-Z

DATA

VALID

Hi-Z

Figure 2. AD7884 Timing Diagram, Using CS and RD

DATA

OLD DATA VALID

NEW DATA VALID

BUSY

CONVST

Figure 3. AD7884 Timing Diagram, with CS and RD

Permanently Low

HBEN

CS

RD

DATA

BUSY

CONVST

Hi-Z

Hi-Z

DB0–DB7

DB8–DB15

Hi-Z

CONVERT

t

DATA

VALID

DATA

VALID

Figure 4. AD7885 Timing Diagram, Using CS and RD

DATA

BUSY

OLD DATA VALID

(DB8 – DB15)

NEW DATA VALID

(DB8 – DB15)

NEW DATA VALID

(DB0 – DB7)

NEW DATA VALID

(DB8 – DB15)

NEW DATA VALID

(DB0 – DB7)

HBEN

CONVST

CONVERT

t

Figure 5. AD7885 Timing Diagram, with CS and RD Permanently Low