LTC2453

10

2453fb

SLEEP

7-BIT ADDRESS

(0010100)

SP

R

ACK

READ

DATA OUTPUT

CONVERSION

CONVERSION

2453 F05

Figure 5. The LTC2453 Coversion Sequence

SLEEP

SLEEP

SP

R

ACK

READ

READ

DATA OUTPUT

CONVERSION

CONVERSION

2453 F06

S

RP

ACK

CONVERSION

DATA OUTPUT

7-BIT ADDRESS

(0010100)

7-BIT ADDRESS

(0010100)

Figure 6. Consecutive Reading at the Same Configuration

Figure 7. Start a New Conversion without Reading Old Conversion Result

SLEEP

SP

R

ACK READ (OPTIONAL)

DATA OUTPUT

CONVERSION

CONVERSION

2453 F07

7-BIT ADDRESS

(0010100)

APPLICATIONS INFORMATION

17

8

9

2

3

18

D8

D13

D14

(SGN)

MSB

D15

R

SDA

SCL

7-BIT

ADDRESS

START BY

MASTER

D7

D6

D5

D0

LSB

91

2

3

8

9

ACK BY

LTC2453

ACK BY

MASTER

NACK BY

MASTER

SLEEP

DATA OUTPUT

CONV

Figure 4. Read Sequence Timing Diagram

DIFFERENTIAL INPUT

D15

(MSB)

D14

D13

D12 ... D2

D1

D0

(LSB)

CORRESPONDING

DECIMAL VALUE

≥FS

1

1

1

1

1

1

65535

FS - 1LSB

1

1

1

1

1

0

65534

0.5 • FS

1

1

0

0

0

0

49152

0.5 • FS - 1LSB

1

0

1

1

1

1

49151

0

1

0

0

0

0

0

32768

-1LSB

0

1

1

1

1

1

32767

-0.5 • FS

0

1

0

0

0

0

16384

-0.5 • FS - 1LSB

0

0

1

1

1

1

16383

≤-FS

0

0

0

0

0

0

0