LTC1857 LINEAR [Linear Integrated Systems], LTC1857 Datasheet - Page 9

• Manufacturer Part Number: LTC1857
• Description: 8-Channel, 12-/14-/16-Bit, 100ksps SoftSpan A/D Converters with Shutdown
• Manufacturer: LINEAR [Linear Integrated Systems]

TI I G DIAGRA S
W U
CONVST
BUSY
SCK
SDO
SDO
SDI
RD
SCK
t
Hi-Z
12
t
10
(SDO Valid Before BUSY↑, RD = 0)
(SDI Setup Time Before SCK↑)
t 1
t
8
(For Short Pulse Mode)
(SDO Valid After RD↓)
50%
t 3
, t
0.4V
2.4V
0.4V
4
t
, t
4
2.4V
W
5
t
t
12
1
(SCK Timing)
t
3
t
t
10
8
2.4V
t
5
50%
2.4V
0.4V
2.4V
B15
1859 TD03
1859 TD07
1859 TD09
1859 TD05
1859 TD01
t
7
CONVST
SDO
SCK
SCK
(Time from Previous Data Remains Valid After SCK↓)
RD
SCK
SDO
SDI
BUSY
RD
LTC1857/LTC1858/LTC1859
t
6
t
(Delay Time, SCK↓ to SDO Valid)
11
0.4V
t
2.4V
(SDI Hold Time After SCK↑)
13
t
2.4V
9
t
t
t
(BUS Relinquish Time)
9
13
(RD↓ to SCK Setup Time)
2
t
2
(CONVST to BUSY Delay)
0.4V
2.4V
90%
10%
2.4V
t
t
0.4V
7
6
2.4V
0.4V
t
11
2.4V
0.4V
Hi-Z
1859 TD04
1859 TD08
1859 TD10
1959 TD06
1859 TD02
185789f
9