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參數(shù)資料
| 型號(hào)： | EL2045CS |
| 元件分類： | 運(yùn)算放大器 |
| 英文描述： | LENS, SQUARE, GREEN; Colour:Green RoHS Compliant: Yes |
| 中文描述： | 低功耗100 MHz增益的- 2穩(wěn)定運(yùn)算放大器 |
| 文件頁(yè)數(shù)： | 12/12頁(yè) |
| 文件大小： | 306K |
| 代理商： | EL2045CS |
EL2045C
Low-Power 100 MHz Gain-of-2 Stable Operational Amplifier
Burn-In Circuit
2045 – 10
All Packages Use the Same Schematic
Applications Information
Product Description
The EL2045C is a low-power wideband gain-of-2
stable monolithic operational amplifier built on
Elantec’s proprietary high-speed complementary
bipolar process The EL2045C 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 amplifier The conventional topolo-
gy of the EL2045C allows for example a capaci-
tor to be placed in the feedback path making it
an excellent choice for applications such as active
filters sample-and-holds or integrators Similar-
ly because of the ability to use diodes in the feed-
back network the EL2045C is an excellent choice
for applications such as fast log amplifiers
Single-Supply Operation
The EL2045C has been designed to have a wide
input and output voltage range This design also
makes the EL2045C 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 EL2045C still
has 1V of output swing
Gain-Bandwidth Product and the b3dB
Bandwidth
The EL2045C has a gain-bandwidth product of
100 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 EL2045C has a b3dB
bandwidth of 100 MHz at a gain of a2 dropping
to 20 MHz at a gain of a5 It is important to
note that the EL2045C 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 EL2045C
in a gain of a2 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
EL2045C 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 EL2045C has been designed as an economi-
cal solution for applications requiring low video
distortion It has been thoroughly characterized
9
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EL2045CS-T13 | 功能描述:IC OPAMP 100MHZ GAIN-OF-2 8-SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:2pA 電壓 - 輸入偏移:1000µV 電流 - 電源:85µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOICN 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:680 (CN2011-ZH PDF) 其它名稱:MCP6L04T-E/SLCT |
| EL2045CS-T7 | 功能描述:IC OPAMP 100MHZ GAIN-OF-2 8-SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:2pA 電壓 - 輸入偏移:1000µV 電流 - 電源:85µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOICN 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:680 (CN2011-ZH PDF) 其它名稱:MCP6L04T-E/SLCT |
| EL2045CSZ | 功能描述:高速運(yùn)算放大器 EL2045CSZ LW PWR 100 MHZ GBW GAIN OF 2 OA RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)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 |
| EL2045CSZ-T13 | 功能描述:高速運(yùn)算放大器 EL2045CSZ LW PWR 100 MHZ GBW GAIN OF 2 OA RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)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 |
| EL2045CSZ-T7 | 功能描述:高速運(yùn)算放大器 EL2045CSZ LW PWR 100 MHZ GBW GAIN OF 2 OA RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)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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