LTC1403 Linear Technology, LTC1403 Datasheet - Page 8

• Manufacturer Part Number: LTC1403
• Description: Serial 12-Bit/14-Bit/ 2.8Msps Sampling ADCs with Shutdown
• Manufacturer: Linear Technology

LTC1403/LTC1403A
TI I G DIAGRA
8
W
U
S/H STATUS
S/H STATUS
INTERNAL
INTERNAL
SLEEP
CONV
CONV
CONV
V
SLK
NAP
SCK
SCK
SDO
SDO
REF
NOTE: NAP AND SLEEP ARE INTERNAL SIGNALS
SAMPLE
SAMPLE
16
16
t
t
t
t
4
6
4
6
17
17
*BITS MARKED "X" AFTER D0 SHOULD BE IGNORED.
W
1
1
Hi-Z
Hi-Z
t
t
3
3
SDO
SCK
t
t
2
2
t
t
2
2
8
8
3
3
D11
D13
SDO REPRESENTS THE ANALOG INPUT FROM THE PREVIOUS CONVERSION
SDO REPRESENTS THE ANALOG INPUT FROM THE PREVIOUS CONVERSION
t
4
4
1
D10
D12
t
10
Nap Mode and Sleep Mode Waveforms
t
8
5
5
D11
D9
LTC1403A Timing Diagram
LTC1403 Timing Diagram
6
6
D10
D8
SCK to SDO Delay
HOLD
HOLD
7
7
V
V
V
D7
D9
IH
OH
OL
8
8
t
t
1
1
t
t
CONV
CONV
t
t
D6
D8
THROUGHPUT
THROUGHPUT
14-BIT DATA WORD
14-BIT DATA WORD
9
9
D5
D7
SDO
SCK
t
t
10
10
10
10
D4
D6
11
11
D3
D5
12
12
D2
D4
t
9
13
13
D1
D3
t
1
14
14
1403A TD03
D0
D2
t
12
15
15
t
t
5
5
V
90%
10%
D1
IH
X
t
t
16
16
8
8
D0
X
17
17
SAMPLE
SAMPLE
t
t
7
7
t
t
9
9
18
18
Hi-Z
Hi-Z
1
1
1403A TD02
t
t
ACQ
ACQ
HOLD
HOLD
1403A TD01
1403A TD01b
1403af