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參數資料
型號: AD8567ACP
廠商: ANALOG DEVICES INC
元件分類: 運動控制電子
英文描述: 16 V Rail-to-Rail Operational Amplifiers
中文描述: QUAD OP-AMP, 10000 uV OFFSET-MAX, 5 MHz BAND WIDTH, QCC16
封裝: LEADLESS FRAME, CSP-16
文件頁數: 9/12頁
文件大小: 152K
代理商: AD8567ACP
AD8565/AD8566/AD8567
9
REV. A
Output Phase Reversal
The AD856x family is immune to phase reversal. Although
the device
s output will not change phase, large currents due
to input overvoltage could damage the device. In applications
where the possibility of an input voltage exceeding the supply
voltage exists, overvoltage protection should be used as described
in the previous section.
Power Dissipation
The maximum allowable internal junction temperature of 150
°
C
limits the AD856x family Maximum Power Dissipation. As the
ambient temperature increases, the maximum power dissipated
by the AD856x family must decrease linearly to maintain the
maximum junction temperature. If this maximum junction
temperature is exceeded momentarily, the part will still operate
properly once the junction temperature is reduced below 150
°
C.
If the maximum junction temperature is exceeded for an extended
period of time, overheating could lead to permanent damage of
the device.
The maximum safe junction temperature, T
JMAX
, is 150
°
C. Using
the following formula, we can obtain the maximum power that
the AD856x family can safely dissipate as a function of temperature.
P
DISS
=
T
J
MAX
T
A
/
θ
J
A
where:
P
DISS
= AD856x power dissipation
T
J
MAX
= AD856x maximum allowable junction temp (150
°
C)
T
A
= Ambient Temperature of the circuit
θ
J
A
= AD856x package thermal resistance, junction-to-ambient
The power dissipated by the device can be calculated as;
P
DISS
= (
V
S
V
OUT
)
I
LOAD
where:
V
S
= supply voltage
V
OUT
= output voltage
I
LOAD
= output load current
Figure 3 shows the maximum power dissipation versus temperature.
To achieve proper operation, use the previous equation to calculate
P
DISS
for a specific package at any given temperature, or use the
chart below.
AMBIENT TEMPERATURE
C
1.25
0.75
0
35
M
0.50
0.25
14-LEAD SOIC
5-LEAD SOT-23
8-LEAD MSOP
14-LEAD TSSOP
1.00
15
5
25
45
65
85
Figure 3. Maximum Power Dissipation vs. Temperature
for 5-, 8-, and 14-Lead Packages
THD + N
The AD856x family features low total harmonic distortion. Figure
4 shows a graph of THD + N versus frequency. The Total Harmonic
Distortion plus Noise for the AD856x over the entire supply range
is below 0.008%. When the device is powered from a 16 V supply,
the THD + N stays below 0.003%. Figure 4 shows the AD8566
in a unity noninverting configuration.
FREQUENCY
Hz
20
30k
T
100
1k
10k
10
1
0.01
0.1
V
S
= 2.5V
V
S
= 8V
Figure 4. THD + N vs. Frequency Graph
Short Circuit Output Conditions
The AD856x family does not have internal short circuit protection
circuitry. As a precautionary measure, it is recommended not to
short the output directly to the positive power supply or to ground.
It is not recommended to operate the AD856x with more than
35 mA of continuous output current. The output current can be
limited by placing a series resistor at the output of the amplifier
whose value can be derive using the following equation:
R
V
mA
X
S
35
For a 5 V single supply operation,
R
X
should have a minimum
value of 143
.
LCD Panel Applications
The AD856x amplifier is designed for LCD panel applications
or applications where large capacitive load drive is required. It
can instantaneously source/sink greater than 250 mA of current.
At unity gain, it can drive 1
μ
F without compensation. This
makes the AD856x ideal for LCD V
COM
driver applications.
To evaluate the performance of the AD856x family, a test circuit
was developed to simulate the V
COM
Driver application for an
LCD panel.
相關PDF資料
PDF描述
AD8567ARU 16 V Rail-to-Rail Operational Amplifiers
AD8568 16 V Rail-to-Rail Buffer Amplifiers
AD8568ART 16 V Rail-to-Rail Buffer Amplifiers
AD8569 16 V Rail-to-Rail Buffer Amplifiers
AD8569ARM 16 V Rail-to-Rail Buffer Amplifiers
相關代理商/技術參數
參數描述
AD8567ACP-R2 制造商:Analog Devices 功能描述:OP Amp Quad GP R-R I/O 16V 16-Pin LFCSP EP T/R 制造商:Rochester Electronics LLC 功能描述:QUAD 16V 35MA CBCMOS AMPLIFIER - Bulk
AD8567ACP-REEL 制造商:Analog Devices 功能描述:
AD8567ACP-REEL7 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:
AD8567ACPZ-R2 功能描述:IC OPAMP GP R-R 5MHZ 16LFCSP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1,000 系列:- 放大器類型:電壓反饋 電路數:4 輸出類型:滿擺幅 轉換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源,單路/雙路(±):4.5 V ~ 16.5 V,±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC(0.154",3.90mm 寬) 供應商設備封裝:14-SOIC 包裝:帶卷 (TR)
ad8567acpz-ree 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:
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