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参数资料
| 型号： | EL2044C |
| 英文描述： | Low Power/Low Voltage 120 MHz Unity-Gain Stable Operational Amplifier(低功耗，低电压 120MHz单位增益稳定运算放大器) |
| 中文描述： | 低功耗/低电压120 MHz的单位增益稳定运算放大器（低功耗，低电压120MHz的单位增益稳定运算放大器） |
| 文件页数： | 12/12页 |
| 文件大小： | 340K |
| 代理商： | EL2044C |
EL2044C
Low PowerLow Voltage 120 MHz Unity-Gain Stable Operational Amplifier
Burn-In Circuit
2044 – 2
All Packages Use the Same Schematic
Applications Information
Product Description
The EL2044C is a low-power wideband monolith-
ic operational amplifier built on Elantec’s propri-
etary high-speed complementary bipolar process
The EL2044C uses a classical voltage-feedback
topology which allows it to be used in a variety of
applications where current-feedback amplifiers
are not appropriate because of restrictions placed
upon the feedback element used with the amplifi-
er The conventional topology of the EL2044C al-
lows for example a capacitor to be placed in the
feedback path making it an excellent choice for
applications such as active filters sample-and-
holds or integrators Similarly because of the
ability to use diodes in the feedback network the
EL2044C is an excellent choice for applications
such as fast log amplifiers
Single-Supply Operation
The EL2044C has been designed to have a wide
input and output voltage range This design also
makes the EL2044C an excellent choice for sin-
gle-supply operation Using a single positive sup-
ply
the lower input voltage range is within
100 mV of ground (RL e 500X) and the lower
output voltage range is within 300 mV of ground
Upper input voltage range reaches 42V and out-
put voltage range reaches 38V with a 5V supply
and RL e 500X This results in a 35V output
swing on a single 5V supply This wide output
voltage range also allows single-supply operation
with a supply voltage as high as 36V or as low as
25V On a single 25V supply the EL2044C still
has 1V of output swing
Gain-Bandwidth Product and the b3dB
Bandwidth
The EL2044C has a gain-bandwidth product of
60 MHz while using only 52 mA of supply cur-
rent For gains greater than 4 its closed-loop
b
3 dB bandwidth is approximately equal to the
gain-bandwidth product divided by the noise
gain of the circuit For gains less than 4 higher-
order poles in the amplifier’s transfer function
contribute to even higher closed loop band-
widths For example the EL2044C has a b3dB
bandwidth of 120 MHz at a gain of a1 dropping
to 60 MHz at a gain of a2 It is important to
note that the EL2044C has been designed so that
this ‘‘extra’’ bandwidth in low-gain applications
does not come at the expense of stability As seen
in the typical performance curves the EL2044C
in a gain of a1 only exhibits 10 dB of peaking
with a 1000
X load
Video Performance
An industry-standard method of measuring the
video distortion of a component such as the
EL2044C is to measure the amount of differential
gain (dG) and differential phase (dP) that it in-
troduces
To
make
these
measurements
a
0286 VPP (40 IRE) signal is applied to the device
with 0V DC offset (0 IRE) at either 358 MHz for
NTSC or 443 MHz for PAL A second measure-
ment is then made at 0714V DC offset (100
IRE)
Differential gain is a measure of the
change in amplitude of the sine wave and is mea-
sured in percent Differential phase is a measure
of the change in phase and is measured in de-
grees
For signal transmission and distribution a back-
terminated cable (75
X in series at the drive end
and 75
X to ground at the receiving end) is pre-
ferred since the impedance match at both ends
will absorb any reflections However when dou-
ble termination is used the received signal is
halved therefore a gain of 2 configuration is typi-
cally used to compensate for the attenuation
The EL2044C has been designed as an economi-
cal solution for applications requiring low video
distortion It has been thoroughly characterized
9
相关PDF资料 |
PDF描述 |
|---|---|
| EL2044 | Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier |
| EL2044CN | Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier |
| EL2044CS | Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier |
| EL2045CN | Low-Power 100 MHz Gain-of-2 Stable Operational Amplifier |
| EL2045CS | LENS, SQUARE, GREEN; Colour:Green RoHS Compliant: Yes |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EL2044CN | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier |
| EL2044CS | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier |
| EL2044CS-T13 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier |
| EL2044CS-T7 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier |
| EL2044CSZ | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier |
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