LTC2383CMS-16#PBF Linear Technology, LTC2383CMS-16#PBF Datasheet - Page 17

• Manufacturer Part Number: LTC2383CMS-16#PBF
• Description: IC, ADC, 16BIT, 1MSPS, Serial-SPI, MSOP16
• Manufacturer: Linear Technology

Specifications of LTC2383CMS-16#PBF

• Resolution (bits): 16bit
• Sampling Rate: 1MSPS
• Input Channel Type: Differential
• Data Interface: Serial, SPI
• Supply Voltage Range - Analog: 2.375V To 2.625V
• Supply Current: 5.2mA
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TIMING DIAGRAM
Normal Mode, Multiple Devices
Figure 13 shows multiple LTC2383-16 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
be used to allow only one LTC2383-16 to drive SDO at a
RDL/SDI
RDL/SDI
ACQUIRE
CHAIN = 0
BUSY
CNV
SDO
SCK
A
B
t
SSCKRDL
CONVERT
t
Hi-Z
HSCKRDL
t
CONV
t
BUSYLH
t
EN
CHAIN
RDL/SDI
D15
Figure 13. Normal Mode With Multiple Devices Sharing CNV, SCK and SDO
LTC2383-16
A
1
CNV
SCK
B
D14
A
2
t
SCK
D13
SDO
A
t
3
HSDO
t
DSDO
POWER-DOWN
14
D1
A
15
t
DIS
D0
CHAIN
RDL/SDI
A
16
time in order to avoid bus conflicts. As shown in Figure 13,
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. To ensure the MSB is properly
output and captured, SCK must be held low at least 1ns
before and 16ns after bringing RDL/SDI low.
LTC2383-16
CNV
SCK
Hi-Z
ACQUIRE
A
t
SCKL
t
D15
BUSY
SCKH
SDO
B
17
D14
B
18
D13
B
RDL2
RDL1
CONVERT
IRQ
DATA IN
CLK
19
DIGITAL HOST
POWER-UP
t
30
CNVL
LTC2383-16
D1
238316 F13
B
31
D0
B
32
Hi-Z
238316 F13
17
CONVERT
238316f