Datasheet

TLC3544, TLC3548
5-V ANALOG, 3-/5-V DIGITAL, 14-BIT, 200-KSPS, 4-/8-CHANNELS SERIAL
ANALOG-TO-DIGITAL CONVERTERS WITH 0-5 V (PSEUDODIFFERENTIAL) INPUTS
SLAS266C – OCTOBER 2000 – REVISED MAY 2003
25
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
conversion operation
CS
123 5467 131415
1
ID15 ID14 ID13 1D12
12
ID15
OD15 OD14 OD13 OD12 OD11 OD10 OD9 OD4
OD2 OD15
48 SCLKs for Long Sampling
16 SCLKs for Short Sampling
SDO goes to Hi-Z After 16th SCLK
16
Hi-Z
t(conv)
t
(SAMPLE)
FS in High
SDI
INT
EOC
SDO
OR
Previous Conversion Result
Select Channel
OD3
OD[15:2] is the result of previous conversion.
Don’t Care
The dotted line means signal may or may not exist.
Figure 12. Mode 00, CS Initiates Operation
123 5467 131415
1
ID15 1D14 ID13 1D12
12
ID15
OD14 OD13 OD12 OD11 OD10 OD9 OD4OD15 OD15OD2OD3
48 SCLKs for Long Sampling
16 SCLKs for Short Sampling
16
Hi-Z
SDO Goes Through Hi-Z After 16 SCLK
Previous Conversion Result
Select Channel
t
(SAMPLE)
t
(conv)
SCLK
CS
FS
SDI
INT
EOC
SDO
OR
OD[15:2] is the result of previous conversion.
Don’t Care
The dotted line means signal may or may not exist.
Figure 13. Mode 00, FS Initiates Operation