LTC2378-16
TiMing DiagraMs
Normal Mode, Single Device
Figure 13 shows a single LTC2378-16 operated in normal
mode with CHAꢁI and RDL/SDꢁ tied to ground. With RDL/
SDꢁ grounded, SDO is enabled and the MSꢀ(D15) of the
new conversion data is available at the falling edge of
ꢀUSY. ThisisthesimplestwaytooperatetheLTC2378-16.
When CHAꢁI = ±, the LTC2378-16 operates in normal
mode. ꢁn normal mode, RDL/SDꢁ enables or disables the
serial data output pin SDO. ꢁf RDL/SDꢁ is high, SDO is in
high impedance. ꢁf RDL/SDꢁ is low, SDO is driven.
CONVERT
DIGITAL HOST
IRQ
CNV
CHAIN
BUSY
LTC2378-16
SCK
RDL/SDI
SDO
DATA IN
CLK
237816 F13a
POWER-DOWN
AND ACQUIRE
CONVERT
POWER-DOWN AND ACQUIRE
CONVERT
CHAIN = 0
RDL/SDI = 0
t
CYC
t
CNVH
t
CNVL
CNV
t
= t
– t
– t
ACQ CYC CONV BUSYLH
t
t
CONV
ACQ
BUSY
t
SCK
t
BUSYLH
t
t
QUIET
SCKH
1
2
3
14
15
16
SCK
SDO
t
t
SCKL
HSDO
t
t
DSDO
DSDOBUSYL
D15
D14
D13
D1
D0
237816 F13
Figure 130 Using a Single 5TC2378-16 in Normal Mode
237816f
16
LINEAR_DIMENSIONS [ Linear Dimensions ]
