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| 型號： | EL5160ISZ-T13 |
| 廠商： | Intersil |
| 文件頁數(shù)： | 17/17頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP CFA SGL 200MHZ 8-SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 放大器類型： | 電流反饋 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 1700 V/µs |
| -3db帶寬： | 200MHz |
| 電流 - 輸入偏壓： | 5µA |
| 電壓 - 輸入偏移： | 1600µV |
| 電流 - 電源： | 750µA |
| 電流 - 輸出 / 通道： | 140mA |
| 電壓 - 電源，單路/雙路(±)： | 5 V ~ 10 V，±2.5 V ~ 5 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(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 帶卷 (TR) |
EL5160, EL5161, EL5260, EL5261, EL5360
9
FN7387.10
January 30, 2014
Disable/Power-Down
The EL5160, EL5260, EL5360 amplifiers can be disabled,
placing the output in a high impedance state. When disabled, the
amplifier supply current reduces to <15A. The amplifiers
disable when their CE pin is pulled up to within 1V of the positive
supply. Similarly, the amplifier is enabled by floating or pulling its
CE pin to at least 3V below the positive supply. For a ±5V supply,
this means that an amplifier is enabled when CE is 2V or less,
and disabled when CE is above 4V. Although the logic levels are
not standard TTL, this choice of logic voltages allows an amplifier
to be enabled by tying CE to ground, even in 5V single supply
applications. The CE pin can be driven from CMOS outputs.
Capacitance at the Inverting Input
Any manufacturer’s high-speed voltage- or current-feedback
amplifier can be affected by stray capacitance at the inverting
input. For inverting gains, this parasitic capacitance has little
effect because the inverting input is a virtual ground, but for
non-inverting gains, this capacitance (in conjunction with the
feedback and gain resistors) creates a pole in the feedback path
of the amplifier. This pole, if low enough in frequency, has the
same destabilizing effect as a zero in the forward open-loop
response. The use of large-value feedback and gain resistors
exacerbates the problem by further lowering the pole frequency
(increasing the possibility of oscillation.)
The EL5160, EL5161, EL5260, EL5261, and EL5360 are
optimized for an 806 (AV = +2) feedback resistor. With the high
bandwidth of these amplifiers, these resistor values might cause
stability problems when combined with parasitic capacitance,
thus ground plane is not recommended around the inverting
input pin of the amplifier.
Feedback Resistor Values
The EL5160, EL5161, EL5260, EL5261, and EL5360 have been
designed and specified at a gain of +2 with RF approximately
806
Ω. This value of feedback resistor gives 125MHz of -3dB
bandwidth at AV = 2 with 1dB of peaking. Since the EL5160,
EL5161, EL5260, EL5261, and EL5360 are current-feedback
amplifiers, it is also possible to change the value of RF to get
more bandwidth. As seen in the curve of Frequency Response for
easily modified by varying the value of the feedback resistor.
Because the EL5160, EL5161, EL5260, EL5261, and EL5360 are
current-feedback amplifiers, their gain-bandwidth product is not
a constant for different closed-loop gains. This feature actually
allows the EL5160, EL5161, EL5260, EL5261, and EL5360 to
maintain about the same -3dB bandwidth. As gain is increased,
bandwidth decreases slightly while stability increases. Since the
loop stability is improving with higher closed-loop gains, it
becomes possible to reduce the value of RF below the specified
806 value and still retain stability, resulting in only a slight loss
of bandwidth with increased closed-loop gain.
Supply Voltage Range and Single-Supply
Operation
The EL5160, EL5161, EL5260, EL5261, and EL5360 have been
designed to operate with supply voltages having a span of 5V to
10V. In practical terms, this means that they will operate on dual
supplies ranging from ±2.5V to ±5V. With single-supply, the
EL5160, EL5161, EL5260, EL5261, and EL5360 will operate
from 5V to 10V.
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 EL5160, EL5161, EL5260,
EL5261, and EL5360 have an input range which extends to
within 2V of either supply. So, for example, with ±5V supplies, the
EL5160, EL5161, EL5260, EL5261, and EL5360 have an input
range which spans ±3V. The output range of the EL5160,
EL5161, EL5260, EL5261, and EL5360 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 1mA supply current of each EL5160, EL5161, EL5260,
EL5261, and EL5360 amplifier. Special circuitry has been
incorporated in the EL5160, EL5161, EL5260, EL5261, and
EL5360 to reduce the variation of output impedance with current
output. This results in dG and dP specifications of 0.1% and 0.1°,
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 EL5160 has dG and dP
specifications of 0.1% and 0.1°.
Output Drive Capability
In spite of their low 1mA per amplifier supply current, the
EL5160, EL5161, EL5260, EL5261, and EL5360 are capable of
providing a minimum of ±40mA of output current. With a
minimum of ±40mA of output drive, the EL5160 is capable of
driving 50 loads to both rails, making it an excellent choice for
driving isolation transformers in telecommunications
applications.
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| EL5160ISZ-T7 | 功能描述:高速運(yùn)算放大器 EL5160ISZ SINGLE 180MHZ CFAW ENABLE 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 |
| EL5160ISZ-T7A | 功能描述:高速運(yùn)算放大器 EL5160ISZ SINGLE MHZ CFAW ENABLE 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 |
| EL5160IW-T7 | 功能描述:運(yùn)算放大器 - 運(yùn)放 LOW PWR 200MHZ RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| EL5160IW-T7A | 功能描述:IC OP AMP LP 200MHZ SOT-23-6 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)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(yīng)商設(shè)備封裝:14-SOIC 包裝:帶卷 (TR) |
| EL5160IWZ | 制造商:Intersil 功能描述:200MHz Low-Power Current Feedback Amplifiers |
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