ADA4896-2/ADA4897-1/ADA4897-2
Data Sheet
Rev. B | Page 8 of 28
ABSOLUTE MAXIMUM RATINGS
Table 6.
Parameter
Rating
Supply Voltage
11 V
Power Dissipation
Common-Mode Input Voltage
VS 0.7 V to +VS + 0.7 V
Differential Input Voltage
0.7 V
Storage Temperature Range
65°C to +125°C
Operating Temperature Range
40°C to +125°C
Lead Temperature (Soldering 10 sec)
300°C
Junction Temperature
150°C
Stresses above 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.
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, θJA is
specified for a device soldered in a circuit board for surface-
Table 7. Thermal Resistance
Package Type
θJA
Unit
222
°C/W
61
°C/W
133
°C/W
150
°C/W
210
°C/W
MAXIMUM POWER DISSIPATION
The maximum safe power dissipation for the
ADA4896-2/junction temperature (TJ) on the die. At approximately 150C,
which is the glass transition temperature, the properties of the
plastic change. Even temporarily exceeding this temperature
limit may change the stresses that the package exerts on the
die, permanently shifting the parametric performance of the
temperature of 175C for an extended period of time can result
in changes in silicon devices, potentially causing degradation or
loss of functionality.
The power dissipated in the package (PD) is the sum of the
quiescent power dissipation and the power dissipated in the
the output.
The quiescent power dissipation is the voltage between the supply
pins (±VS) multiplied by the quiescent current (IS).
PD = Quiescent Power + (Total Drive Power Load Power)
L
OUT
L
OUT
S
D
R
V
R
V
I
V
P
2
RMS output voltages should be considered. If RL is referenced to
VS, as in single-supply operation, the total drive power is VS ×
IOUT. If the rms signal levels are indeterminate, consider the worst
case, when VOUT = VS/4 for RL to midsupply.
L
S
D
R
V
I
V
P
2
4
/
In single-supply operation with RL referenced to VS, worst case
is VOUT = VS/2.
Airflow increases heat dissipation, effectively reducing θJA.
Also, more metal directly in contact with the package leads
and exposed paddle from metal traces, through holes, ground,
and power planes reduces θJA.
Figure 3 shows the maximum safe power dissipation in the
package vs. the ambient temperature on a JEDEC standard
4-layer board. θJA values are approximations.
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
–45 –35 –25 –15 –5
5
15
25
35
45
55
65
75
85
95 105 115 125
MA
XI
MU
M
PO
W
E
R
D
ISSI
P
A
TI
ON
(
W
)
AMBIENT TEMPERATURE (°C)
8-LEAD SOIC
8-LEAD LFCSP
TJ = 150°C
094
47-
053
8-LEAD MSOP
6-LEAD SOT-23
10-LEAD MSOP
Figure 3. Maximum Power Dissipation vs. Temperature for a 4-Layer Board
ESD CAUTION