ADA4841-X AD [Analog Devices], ADA4841-X Datasheet - Page 6

• Manufacturer Part Number: ADA4841-X
• Manufacturer: AD [Analog Devices]

AD7689
VDD = 2.5 V to 4.5 V, VIO = 2.3 V to VDD, all specifications T
Table 5.
Parameter
Conversion Time: CNV Rising Edge to Data Available
Acquisition Time
Time Between Conversions
CNV Pulse Width
SCK Period
SCK Low Time
SCK High Time
SCK Falling Edge to Data Remains Valid
SCK Falling Edge to Data Valid Delay
CNV Low to SDO D15 MSB Valid
CNV High or Last SCK Falling Edge to SDO High Impedance
CNV High to SCK Low
SDI Valid Setup Time from SCK Falling Edge
SDI Valid Hold Time from SCK Falling Edge
1
See Figure 2 and Figure 3 for load conditions.
VIO Above 3 V
VIO Above 2.7 V
VIO Above 2.3 V
VIO Above 2.7 V
VIO Above 2.3 V
1
30% VIO
1. 2V IF VIO ABOVE 2.5V, VIO – 0.5V IF VIO BELOW 2.5V.
2. 0.8V IF VIO ABOVE 2.5V, 0.5V IF VIO BELOW 2.5V.
t
DELAY
Figure 2. Load Circuit for Digital Interface Timing
TO SDO
Figure 3. Voltage Levels for Timing
2V OR VIO – 0.5V
0.8V OR 0.5V
50pF
C
Rev. PrC | Page 6 of 20
L
500µA
500µA
MIN
2
to T
1
I
I
MAX
OL
OH
70% VIO
, unless otherwise noted.
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
CONV
ACQ
CYC
CNVH
SCK
SCKL
SCKH
HSDO
DSDO
EN
DIS
CSCK
SDIN
HDIN
t
DELAY
2V OR VIO – 0.5V
0.8V OR 0.5V
1.4V
2
Min
0.7
1.8
5
10
25
12
12
5
10
5
4
Preliminary Technical Data
1
Typ
Max
3.2
24
30
35
18
22
25
Unit
μs
μs
μs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns