Datasheet

LTC2389-18
32
238918f
applicaTions inFormaTion
Figure 19. Serial Interface with External Clock. Read After the Conversion. Daisy Chain Multiple Converters
MODE[1:0] = 11
MODE[1:0] = 11
CS
BUSY
t
EN
t
SSDI
SCK STARTS LOW
SCK STARTS HIGH
t
DSDO,
t
HSDO
1 2 3
D17
X17 X16 X15 X1 X0
238918 F19
D16 D15 D1 D0 X17 X16
4 17 18 19 20
SCK
SDO
(ADC 2)
Hi-Z
Hi-Z
SDI
(ADC 2)
t
HSDI
CS
BUSY
t
EN
t
SSDI
t
DSDO,
t
HSDO
1 2 3
D17
X17 X16 X15 X1 X0
D16 D15 D1 D0 X17 X16
4 17 18 19 20
SCK
SDO
(ADC 2)
Hi-Z
Hi-Z
SDI
(ADC 2)
t
HSDI
t
SCKH
t
SCKL
t
SCK
t
SCKH
t
SCKL
t
SCK
LTC2389-18
ADC 1 ADC 2
SDO
CNVST IN
CS IN
SCK IN
CNVST
CS
SCK
SDI
LTC2389-18
SDO DATA OUT
CNVST
CS
SCK
SDI
t
DSCK
t
DSCK