LTC1289CCSW(RevB) View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC1289CCSW
(Rev.:RevB)

3 Volt Single Chip 12-Bit Data Acquisition System

Linear Technology 

APPLICATI S I FOR ATIO

8-Bit Word Length

CS

tSMPL

tCONV

SCLK

DOUT

MSB-FIRST

DOUT

LSB-FIRST

1

B11 B10 B9 B8 B7 B6 B5 B4

(SB)

B0 B1 B2 B3 B4 B5 B6 B7

THE LAST FOUR BITS

ARE TRUNCATED

LTC1289

12-Bit Word Length

CS

tSMPL

tCONV

SCLK

DOUT

MSB-FIRST

DOUT

LSB-FIRST

1

10

12

(SB)

B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0

(SB)

B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11

16-Bit Word Length

CS

tSMPL

tCONV

SCLK

1

12

16

DOUT

MSB-FIRST

DOUT

LSB-FIRST

(SB)

FILL

B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 ZEROS

(SB)

B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11

***

* IN UNIPOLAR MODE, THESE BITS ARE FILLED WITH ZEROS.

IN BIPOLAR MODE, THE SIGN BIT IS EXTENDED INTO THESE LOCATIONS.

LTC1289 AIF02

Figure 2. Data Output (DOUT) Timing with Different Word Lengths

1289fb

13

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