AD1819B
t
SETUP
SYNC
BIT_CLK
SYNC
SDATA_OUT
BIT_CLK
SLOT 1
SLOT 2
SDATA_OUT
WRITE
TO 0x26
DATA
PR4
DON’T
CARE
t
HOLD
t
S2_PDOWN
SDATA_IN
NOTE: BIT_CLK NOT TO SCALE
Figure 4. Data Setup and Hold
BIT_CLK
Figure 6. AC-Link, Link Low Power Mode Timing
t
RISECLK
t
FALLCLK
RESET
SYNC
t
RISESYNC
SDATA_IN
t
FALLSYNC
SDATA_OUT
t
SETUP2RST
SDATA_IN, BIT_CLK
HI-Z
t
RISEDIN
SDATA_OUT
t
FALLDIN
t
OFF
Figure 7. ATE Test Mode
t
FALLDOUT
t
RISEDOUT
Figure 5. Signal Rise and Fall Time
ABSOLUTE MAXIMUM RATINGS*
ORDERING GUIDE
Parameter
Power Supplies
Analog (AV
DD
)
Digital (DV
DD
)
Input Current (Except Supply Pins)
Analog Input Voltage (Signal Pins)
Digital Input Voltage (Signal Pins)
Ambient Temperature (Operating)
Storage Temperature
Min
–0.3
–0.3
–0.3
–0.3
–40
–65
Max
6.0
6.0
±
10.0
AV
DD
+ 0.3
DV
DD
+ 0.3
+85
+150
Units
Model
V
V
mA
V
V
°C
°C
Temperature
Range
Package
Description
Package
Option*
AD1819BJST –40°C to +85°C 48-Terminal LQFP ST-48
*ST = Thin Quad Flatpack.
ENVIRONMENTAL CONDITIONS
*Stresses greater than those listed under Absolute Maximum Ratings may cause
permanent damage to the device. This is a stress rating only; functional operation
of the device at these or any other conditions above those indicated in the
operational section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Ambient Temperature Rating
T
AMB
= T
CASE
– (P
D
× θ
CA
)
T
CASE
= Case Temperature in
°C
P
D
= Power Dissipation in W
θ
CA
= Thermal Resistance (Case-to-Ambient)
θ
JA
= Thermal Resistance (Junction-to-Ambient)
θ
JC
= Thermal Resistance (Junction-to-Case)
Package
LQFP
JA
JC
CA
76.2°C/W
17°C/W
59.2°C/W
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD1819B features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
REV. 0
–7–
AD [ ANALOG DEVICES ]
