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參數(shù)資料
| 型號： | EL5193ACW-T7 |
| 廠商： | INTERSIL CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Circular Connector; No. of Contacts:55; Series:JTP02R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:16; Circular Contact Gender:Pin; Circular Shell Style:Box Mount Receptacle; Insert Arrangement:16-35 |
| 中文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PDSO6 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁數(shù)： | 15/17頁 |
| 文件大?。?/td> | 345K |
| 代理商： | EL5193ACW-T7 |
15
As supply voltages continue to decrease, it becomes
necessary to provide input and output voltage ranges that
can get as close as possible to the supply voltages. The
EL5193 has an input range which extends to within 2V of
either supply. So, for example, on +5V supplies, the EL5193
has an input range which spans ±3V. The output range of the
EL5193 is also quite large, extending to within 1V of the
supply rail. On a ±5V supply, the output is therefore capable
of swinging from -4V to +4V. Single-supply output range is
larger because of the increased negative swing due to the
external pull-down resistor to ground.
Video Performance
For good video performance, an amplifier is required to
maintain the same output impedance and the same
frequency response as DC levels are changed at the output.
This is especially difficult when driving a standard video load
of 150
, because of the change in output current with DC
level. Previously, good differential gain could only be
achieved by running high idle currents through the output
transistors (to reduce variations in output impedance.) These
currents were typically comparable to the entire 4mA supply
current of each EL5193 amplifier. Special circuitry has been
incorporated in the EL5193 to reduce the variation of output
impedance with current output. This results in dG and dP
specifications of 0.03% and 0.04°, while driving 150
at a
gain of 2.
Video performance has also been measured with a 500
load at a gain of +1. Under these conditions, the EL5193 has
dG and dP specifications of 0.03% and 0.04°.
Output Drive Capability
In spite of its low 4mA of supply current, the EL5193 is
capable of providing a minimum of ±95mA of output current.
With a minimum of ±95mA of output drive, the EL5193 is
capable of driving 50
loads to both rails, making it an
excellent choice for driving isolation transformers in
telecommunications applications.
Driving Cables and Capacitive Loads
When used as a cable driver, double termination is always
recommended for reflection-free performance. For those
applications, the back-termination series resistor will
decouple the EL5193 from the cable and allow extensive
capacitive drive. However, other applications may have high
capacitive loads without a back-termination resistor. In these
applications, a small series resistor (usually between 5
and
50
) can be placed in series with the output to eliminate
most peaking. The gain resistor (R
G
) can then be chosen to
make up for any gain loss which may be created by this
additional resistor at the output. In many cases it is also
possible to simply increase the value of the feedback resistor
(R
F
) to reduce the peaking.
Current Limiting
The EL5193 has no internal current-limiting circuitry. If the
output is shorted, it is possible to exceed the Absolute
Maximum Rating for output current or power dissipation,
potentially resulting in the destruction of the device.
Power Dissipation
With the high output drive capability of the EL5193, it is
possible to exceed the 125°C Absolute Maximum junction
temperature under certain very high load current conditions.
Generally speaking when R
L
falls below about 25
, it is
important to calculate the maximum junction temperature
(T
JMAX
) for the application to determine if power supply
voltages, load conditions, or package type need to be
modified for the EL5193 to remain in the safe operating area.
These parameters are calculated as follows:
where:
T
MAX
= Maximum ambient temperature
θ
JA
= Thermal resistance of the package
n = Number of amplifiers in the package
PD
MAX
= Maximum power dissipation of each amplifier in
the package
PD
MAX
for each amplifier can be calculated as follows:
where:
V
S
= Supply voltage
I
SMAX
= Maximum supply current of 1A
V
OUTMAX
= Maximum output voltage (required)
R
L
= Load resistance
T
JMAX
T
MAX
θ
JA
n
PD
MAX
×
×
(
)
+
=
PD
MAX
2
(
V
S
I
SMAX
)
V
S
(
- V
OUTMAX
)
V
L
----------------------------
×
+
×
×
=
EL5193, EL5193A
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| EL5193ACW-T7A | Circular Connector; MIL SPEC:MIL-DTL-38999 Series II; Body Material:Metal; Series:JT; No. of Contacts:55; Connector Shell Size:16; Connecting Termination:Crimp; Circular Shell Style:Box Mount Receptacle; Body Style:Straight RoHS Compliant: No |
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|---|---|
| EL5193ACWZ-T7 | 功能描述:高速運算放大器 EL5193ACWZ 300MHZ CFA ENABLE NOTCOMEND RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| EL5193CWZ-T7 | 功能描述:高速運算放大器 300MHZ CUR FEEDBACK AMP SINGLE/DL SUPPLY RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| EL5193CWZ-T7A | 功能描述:高速運算放大器 300MHZ CUR FEEDBACK AMP SINGLE/DL SUPPLY RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| EL5197ACSZ | 功能描述:高速運算放大器 EL5197ACSZ 200MHZ CFA ENABLE NOTCOMEND RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| EL5197ACSZ-T13 | 功能描述:高速運算放大器 EL5197ACSZ 200MHZ CFA ENABLE NOTCOMEND RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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