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參數(shù)資料
| 型號： | AD8565AKSZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP GP R-R 5MHZ 35MA SC70-5 |
| 標準包裝： | 1 |
| 放大器類型： | 通用 |
| 電路數(shù)： | 1 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 6 V/µs |
| 增益帶寬積： | 5MHz |
| 電流 - 輸入偏壓： | 80nA |
| 電壓 - 輸入偏移： | 2000µV |
| 電流 - 電源： | 700µA |
| 電流 - 輸出 / 通道： | 35mA |
| 電壓 - 電源，單路/雙路(±)： | 4.5 V ~ 16 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 6-TSSOP（5 引線），SC-88A，SOT-353 |
| 供應商設備封裝： | SC-70-5 |
| 包裝： | 標準包裝 |
| 產(chǎn)品目錄頁面： | 766 (CN2011-ZH PDF) |
| 其它名稱： | AD8565AKSZ-REEL7DKR |
AD8565/AD8566/AD8567
Rev. G | Page 10 of 16
This input current is not inherently damaging to the device as
long as it is limited to 5 mA or less. If a condition exists using
the AD8565/AD8566/AD8567 where the input exceeds the
supply more than 0.6 V, an external series resistor should be
added. The size of the resistor can be calculated by using the
maximum over-voltage divided by 5 mA. This resistance should
be placed in series with either input exposed to an overvoltage.
OUTPUT PHASE REVERSAL
The AD8565/AD8566/AD8567 are immune to phase reversal.
Although device output does not change phase, large currents
due to input overvoltage could damage the device. In applica-
tions where the possibility of an input voltage exceeding the
supply voltage exists, overvoltage protection should be used as
described in the Input Overvoltage Protection section.
POWER DISSIPATION
The maximum allowable internal junction temperature of
150°C limits the maximum power dissipation of AD8565/
AD8566/AD8567 devices. As the ambient temperature
increases, the maximum power dissipated by AD8565/AD8566/
AD8567 devices must decrease linearly to maintain maximum
junction temperature. If this maximum junction temperature is
exceeded momentarily, the device still operates properly once
the junction temperature is reduced below 150°C. If the
maximum junction temperature is exceeded for an extended
period, overheating could lead to permanent damage of the
device.
The maximum safe junction temperature, TJMAX, is 150°C. Using
the following formula, the maximum power that an AD8565/
AD8566/AD8567 device can safely dissipate as a function of
temperature can be obtained:
PDISS = TJMAX TA/θJA
where:
PDISS is the AD8565/AD8566/AD8567 power dissipation.
TJMAX is the AD8565/AD8566/AD8567 maximum allowable
junction temperature (150°C).
TA is the ambient temperature of the circuit.
θJA is the AD8565/AD8566/AD8567 package thermal resistance,
junction-to-ambient.
The power dissipated by the device can be calculated as
PDISS = (VS VOUT) × ILOAD
where:
VS is the supply voltage.
VOUT is the output voltage.
ILOAD is the output load current.
Figure 30 shows the maximum power dissipation vs. temper-
ature. To achieve proper operation, use the previous equation to
calculate PDISS for a specific package at any given temperature or
AMBIENT TEMPERATURE (°C)
1.25
0.75
0
–35
MA
XI
MU
M
P
O
W
ER
D
ISSI
P
A
TION
(
W)
0.50
0.25
1.00
–15
5
25
45
65
85
16-LEAD LFCSP
5-LEAD SC70
8-LEAD MSOP
14-LEAD TSSOP
01909-
030
Figure 30. Maximum Power Dissipation vs. Temperature for 5-Lead SC70,
8-Lead MSOP, 14-Lead TSSOP, and 16-Lead LFCSP Packages
THERMAL PAD—AD8567
The AD8567 LFCSP comes with a thermal pad that is attached
to the substrate. This substrate is connected to the most positive
supply, that is, Pin 3 in the LFCSP package and Pin 4 in the
TSSOP package. To be electrically safe, the thermal pad should
be soldered to an area on the board that is electrically isolated
or connected to VDD. Attaching the thermal pad to ground
adversely affects the performance of the part.
Soldering down this thermal pad dramatically improves the
heat dissipation of the package. It is necessary to attach vias that
connect the soldered thermal pad to another layer on the board.
This provides an avenue to dissipate the heat away from the
part. Without vias, the heat is isolated directly under the part.
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