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AD8092ARMZ-REEL7 датащи(PDF) 7 Page - Analog Devices

номер детали AD8092ARMZ-REEL7
подробное описание детали  Low Cost, High Speed Rail-to-Rail Amplifiers
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD8092ARMZ-REEL7 датащи(HTML) 7 Page - Analog Devices

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AD8091/AD8092
Rev. C | Page 7 of 20
MAXIMUM POWER DISSIPATION
The maximum safe power dissipation in the AD8091/AD8092
package is limited by the associated rise in junction temperature
(TJ) on the die. The plastic encapsulating the die locally reaches
the junction temperature. At approximately 150°C, which is the
glass transition temperature, the plastic changes its properties.
Even temporarily exceeding this temperature limit may change
the stresses that the package exerts on the die, permanently
shifting the parametric performance of the AD8091/AD8092.
Exceeding a junction temperature of 175°C for an extended
period of time can result in changes in the silicon devices,
potentially causing failure.
The still-air thermal properties of the package (θJA), the ambient
temperature (TA), and the total power dissipated in the package
(PD) can be used to determine the junction temperature of the die.
The junction temperature can be calculated as
(
)
JA
D
A
J
θ
P
T
T
×
+
=
The power dissipated in the package (PD) is the sum of the
quiescent power dissipation and the power dissipated in the
package due to the load drive for all outputs. The quiescent
power is the voltage between the supply pins (VS) times the
quiescent current (IS). Assuming that the load (RL) is referenced
to midsupply, then the total drive power is VS/2 × IOUT, some of
which is dissipated in the package and some in the load
(VOUT × IOUT). The difference between the total drive power and
the load power is the drive power dissipated in the package.
(
)
power
load
power
drive
total
power
quiescent
PD
+
=
()
⎟⎟
⎜⎜
×
+
×
=
L
OUT
L
OUT
S
S
S
D
R
V
R
V
V
I
V
P
2
2
RMS output voltages should be considered. If RL is referenced to
−VS, as in single-supply operation, then the total drive power is
VS × IOUT.
If the rms signal levels are indeterminate, then consider the
worst case when VOUT = VS/4 for RL to midsupply
()
2
4
L
S
S
S
D
R
V
I
V
P
+
×
=
In single-supply operation with RL referenced to −VS, the worst
case is VOUT = VS/2.
Airflow increases heat dissipation, effectively reducing θJA. Also,
more metal directly in contact with the package leads from
metal traces, through holes, ground, and power planes reduces
the θJA. Care must be taken to minimize parasitic capacitances
at the input leads of high speed op amps as discussed in the
Input Capacitance section.
Figure 4 shows the maximum safe power dissipation in the
package vs. the ambient temperature for the SOIC-8
(125°C/W), SOT23-5 (180°C/W), and MSOP-8 (150°C/W) on a
JEDEC standard four-layer board.
2.0
0
0.5
1.0
1.5
–40 –30 –20 –10
0
10
20
30
40
50
60
70
80
90
AMBIENT TEMPERATURE (°C)
TJ = 150°C
MSOP-8
SOIC-8
SOT23-5
Figure 4. Maximum Power Dissipation vs.
Temperature for a Four-Layer Board


Аналогичный номер детали - AD8092ARMZ-REEL7

производительномер деталидатащиподробное описание детали
logo
Analog Devices
AD8092ARMZ-REEL7 AD-AD8092ARMZ-REEL7 Datasheet
488Kb / 20P
   Low Cost, High Speed Rail-to-Rail Amplifiers
Rev. B
AD8092ARMZ-REEL71 AD-AD8092ARMZ-REEL71 Datasheet
292Kb / 20P
   Low Cost, High Speed Rail-to-Rail Amplifiers
More results

Аналогичное описание - AD8092ARMZ-REEL7

производительномер деталидатащиподробное описание детали
logo
Analog Devices
AD8091 AD-AD8091 Datasheet
229Kb / 16P
   Low-Cost, High-Speed Rail-to-Rail Amplifiers
REV. A
AD8051 AD-AD8051 Datasheet
267Kb / 16P
   Low Cost, High Speed Rail-to-Rail Amplifiers
REV. B
AD8051 AD-AD8051_07 Datasheet
561Kb / 24P
   Low Cost, High Speed, Rail-to-Rail Amplifiers
Rev. H
AD8051ART AD-AD8051ART Datasheet
579Kb / 25P
   Low Cost, High Speed, Rail-to-Rail Amplifiers
Rev. J
AD8051 AD-AD8051_15 Datasheet
579Kb / 25P
   Low Cost, High Speed, Rail-to-Rail Amplifiers
Rev. J
AD8052 AD-AD8052_15 Datasheet
579Kb / 25P
   Low Cost, High Speed, Rail-to-Rail Amplifiers
Rev. J
AD8092 AD-AD8092_15 Datasheet
548Kb / 21P
   Low Cost, High Speed Rail-to-Rail Amplifiers
REV. C
AD8051 AD-AD8051_06 Datasheet
502Kb / 24P
   Low Cost, High Speed, Rail-to-Rail Amplifiers
Rev. G
AD8091 AD-AD8091_16 Datasheet
292Kb / 20P
   Low Cost, High Speed Rail-to-Rail Amplifiers
AD8091 AD-AD8091_05 Datasheet
488Kb / 20P
   Low Cost, High Speed Rail-to-Rail Amplifiers
Rev. B
More results


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