LT6203 LINER [Linear Technology], LT6203 Datasheet - Page 16

• Manufacturer Part Number: LT6203
• Description: 16-Bit, 2Msps, Pseudo-Differential Unipolar SAR
• Manufacturer: LINER [Linear Technology]

LTC2370-16
TIMING DIAGRAMS
Normal Mode, Multiple Devices
Figure 11 shows multiple LTC2370-16 devices operating
in normal mode (CHAIN = 0) sharing CNV, SCK and SDO.
By sharing CNV, SCK and SDO, the number of required
signals to operate multiple ADCs in parallel is reduced.
Since SDO is shared, the RDL/SDI input of each ADC must
POWER-DOWN
16
AND ACQUIRE
RDL/SDI
RDL/SDI
CHAIN = 0
BUSY
CNV
SDO
SCK
A
B
CONVERT
Hi-Z
t
CONV
t
BUSYLH
t
EN
Figure 11. Normal Mode With Multiple Devices Sharing CNV, SCK and SDO
CHAIN
RDL/SDI
D15
A
LTC2370-16
1
CNV
SCK
D14
B
A
2
t
SCK
D13
SDO
t
HSDO
A
t
DSDO
3
14
D1
A
15
CHAIN
RDL/SDI
t
POWER-DOWN AND ACQUIRE
DIS
D0
A
LTC2370-16
16
be used to allow only one LTC2370-16 to drive SDO at a
time in order to avoid bus conflicts. As shown in Figure 11,
the RDL/SDI inputs idle high and are individually brought
low to read data out of each device between conversions.
When RDL/SDI is brought low, the MSB of the selected
device is output onto SDO.
CNV
SCK
A
Hi-Z
BUSY
SDO
t
SCKL
D15
t
SCKH
B
17
D14
B
18
RDL
RDL
CONVERT
IRQ
DATA IN
CLK
D13
DIGITAL HOST
B
B
A
19
30
D1
B
31
D0
B
32
t
CNVL
Hi-Z
237016 F11
CONVERT
237016fa
t
QUIET