ADS7805

9

SBAS020D

www.ti.com

FIGURE 5. Using CS and BYTE to Control Data Bus.

t

8

BUSY

R/C

MODE

Acquire

Convert

Convert

t

7

t

6

t

3

t

4

t

1

t

2

t

5

DATA BUS

Previous

Data Valid

t

10

Hi-Z

Data Valid

Hi-Z

Previous

Data Valid

Not Valid

t

11

t

9

Acquire

Data Valid

t

13

FIGURE 3. Conversion Timing with Outputs Enabled after Conversion (CS Tied LOW).

FIGURE 4. Using CS to Control Conversion and Read Timing.

t

12

t

12

t

14

Hi-Z

High Byte

t

14

Low Byte

Hi-Z

t

9

Hi-Z

Low Byte

High Byte

Hi-Z

Pins 6-13

Pins 15-22

BYTE

CS

R/C

t

9

Hi-Z State

BUSY

R/C

DATA BUS

MODE

Acquire

Data Valid

Hi-Z State

Convert

t

7

t

6

t

3

t

4

t

12

Acquire

t

14

t

12

t

1

t

12

t

12

CS