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參數(shù)資料
| 型號： | EL5150IS |
| 廠商： | Intersil |
| 文件頁數(shù)： | 4/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OP AMP LOW OFF 200MHZ 8-SOIC |
| 標準包裝： | 97 |
| 放大器類型： | 電壓反饋 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 100 V/µs |
| 增益帶寬積： | 40MHz |
| -3db帶寬： | 200MHz |
| 電流 - 輸入偏壓： | 20nA |
| 電壓 - 輸入偏移： | 500µV |
| 電流 - 電源： | 1.35mA |
| 電流 - 輸出 / 通道： | 70mA |
| 電壓 - 電源，單路/雙路(±)： | 5 V ~ 12 V，±2.5 V ~ 6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SOIC |
| 包裝： | 管件 |
12
FN7384.7
January 16, 2008
Gain Bandwidth Product
The EL5150 and family members have a gain bandwidth
product of 40MHz for a gain of +5. Bandwidth can be
predicted by the following equation:
(Gain) x (BW) = GainBandwidthProduct
Video Performance
For good video performance, an amplifier is required to
maintain the same output impedance and same frequency
response as DC levels are changed at the output; this
characteristic is widely referred to as “diffgain-diffphase”.
Many amplifiers have a difficult time with this especially while
driving standard video loads of 150
Ω, as the output current
has a natural tendency to change with DC level. The dG and
dP for these families is a respectable 0.04% and 0.9°, while
driving 150
Ω at a gain of 2. Driving high impedance loads
would give a similar or better dG and dP performance as the
current output demands placed on the amplifier lessen with
increased load.
Driving Capacitive Loads
These devices can easily drive capacitive loads as
demanding as 27pF in parallel with 500
Ω while holding
peaking to within 5dB of peaking at unity gain. Of course if
less peaking is desired, a small series resistor (usually
between 5
Ω to 50Ω) can be placed in series with the output
to eliminate most peaking; however, there will be a small
sacrifice of gain which can be recovered by simply adjusting
the value of the gain resistor.
Driving Cables
Both ends of all cables must always be properly terminated;
double termination is absolutely necessary for reflection-free
performance. Additionally, a back-termination series resistor
at the amplifier's output will isolate the amplifier from the
cable and allow extensive capacitive drive. However, other
applications may have high capacitive loads without a
back-termination resistor. Again, a small series resistor at
the output can help to reduce peaking.
Disable/Power-Down
Devices with disable can be disabled with their output placed
in a high impedance state. The turn off time is about 330ns
and the turn on time is about 130ns. When disabled, the
amplifier's supply current is reduced to 17A typically;
essentially eliminating power consumption. The amplifier's
power down is controlled by standard TTL or CMOS signal
levels at the ENABLE pin. The applied logic signal is relative
to VS- pin. Letting the ENABLE pin float or the application of
a signal that is less than 0.8V above VS- enables the
amplifier. The amplifier is disabled when the signal at
ENABLE pin is above VS+ - 1.5V.
Output Drive Capability
Members of the EL5150 family do not have internal short
circuit protection circuitry. Typically, short circuit currents
ranging from 70mA and 95mA can be expected and
naturally, if the output is shorted indefinitely the part can
easily be damaged from overheating; or excessive current
density may eventually compromise metal integrity.
Maximum reliability is maintained if the output current is
always held below ±40mA. This limit is set and limited by the
design of the internal metal interconnect. Note that in
transient applications, the part is extremely robust.
Power Dissipation
With the high output drive capability of these devices, it is
possible to exceed the +125°C absolute maximum junction
temperature under certain load current conditions.
Therefore, it is important to calculate the maximum junction
temperature for an application to determine if load conditions
or package types need to be modified to assure operation of
the amplifier in a safe operating area.
The maximum power dissipation allowed in a package is
determined according to Equation 1:
Where:
TJMAX = Maximum junction temperature
TAMAX = Maximum ambient temperature
θJA = Thermal resistance of the package
The maximum power dissipation actually produced by an IC
is the total quiescent supply current times the total power
supply voltage, plus the power in the IC due to the load, or:
For sourcing:
For sinking:
Where:
VS = Supply voltage
ISMAX = Maximum quiescent supply current
VOUT = Maximum output voltage of the application
RLOAD = Load resistance tied to ground
ILOAD = Load current
N = number of amplifiers (Max = 2)
By setting the two PDMAX equations equal to each other, we
can solve the output current and RLOAD to avoid the device
overheat.
PD
MAX
T
JMAX
T
AMAX
–
Θ
JA
---------------------------------------------
=
(EQ. 1)
PD
MAX
V
S
I
SMAX
V
S
V
OUTi
–
()
i1
=
n
∑
V
OUTi
R
Li
-----------------
×
+
×
=
(EQ. 2)
PD
MAX
V
S
I
SMAX
V
OUTi
V
S
–
()
i1
=
n
∑
I
LOADi
×
+
×
=
(EQ. 3)
EL5150, EL5151, EL5250, EL5251, EL5451
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| EL5150IS-T13 | 功能描述:IC AMP VFA SGL 200MHZ 8-SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉(zhuǎn)換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:10-MSOP 包裝:管件 |
| EL5150IS-T7 | 功能描述:IC OP AMP LO OFF 200MHZ 8-SOIC RoHS:否 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(shù):4 輸出類型:滿擺幅 轉(zhuǎn)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) |
| EL5150ISZ | 功能描述:IC AMP VFA SGL 200MHZ 8-SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉(zhuǎn)換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:10-MSOP 包裝:管件 |
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