LTC2358-16
ADC TIMING CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 9)
SYMBOL
PARAMETER
CONDITIONS
MIN
40
TYP
MAX
UNITS
ns
l
l
l
l
l
l
t
t
t
t
t
t
t
CNV High Time
CNVH
CNVL
BUSYLH
QUIET
PDH
CNV Low Time
750
ns
CNV to BUSY Delay
Digital I/O Quiet Time from CNV
PD High Time
C = 25pF
L
30
ns
20
40
40
ns
ns
PD Low Time
ns
PDL
REFBUF Wake-Up Time
C
= 47μF, C = 0.1μF
REFIN
200
ms
WAKE
REFBUF
CMOS I/O Mode
l
l
l
l
l
l
l
l
l
l
l
t
t
t
t
t
t
t
t
t
t
t
SCKI Period
(Notes 18, 19)
10
4
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SCKI
SCKI High Time
SCKIH
SCKI Low Time
4
SCKIL
SDI Setup Time from SCKI
SDI Hold Time from SCKI
SDO Data Valid Delay from SCKI
SDO Remains Valid Delay from SCKI
SDO to SCKO Skew
(Note 18)
(Note 18)
2
SSDISCKI
HSDISCKI
DSDOSCKI
HSDOSCKI
SKEW
1
C = 25pF (Note 18)
L
7.5
1
C = 25pF (Note 18)
L
1.5
–1
0
(Note 18)
0
SDO Data Valid Delay from BUSY
Bus Enable Time After CS
Bus Relinquish Time After CS
C = 25pF (Note 18)
L
DSDOBUSYL
EN
(Note 18)
(Note 18)
15
15
DIS
LVDS I/O Mode
l
l
l
l
l
l
l
l
l
l
l
t
t
t
t
t
t
t
t
t
t
t
SCKI Period
(Note 20)
4
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SCKI
SCKI High Time
(Note 20)
1.5
1.5
1.2
–0.2
SCKIH
SCKI Low Time
(Note 20)
SCKIL
SDI Setup Time from SCKI
SDI Hold Time from SCKI
SDO Data Valid Delay from SCKI
SDO Remains Valid Delay from SCKI
SDO to SCKO Skew
(Notes 11, 20)
(Notes 11, 20)
(Notes 11, 20)
(Notes 11, 20)
(Note 11)
SSDISCKI
HSDISCKI
DSDOSCKI
HSDOSCKI
SKEW
6
1
–0.4
0
0
0.4
SDO Data Valid Delay from BUSY
Bus Enable Time After CS
Bus Relinquish Time After CS
(Note 11)
DSDOBUSYL
EN
50
15
DIS
Rev A
7
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