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參數(shù)資料
| 型號(hào)： | EL5173 |
| 廠(chǎng)商： | Intersil Corporation |
| 英文描述： | 450MHz Differential Twisted-Pair Drivers(450MHz差分驅(qū)動(dòng)器) |
| 中文描述： | 450MHz的差分雙絞線(xiàn)驅(qū)動(dòng)器（450MHz的差分驅(qū)動(dòng)器） |
| 文件頁(yè)數(shù)： | 11/15頁(yè) |
| 文件大?。?/td> | 371K |
| 代理商： | EL5173 |
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11
FN7312.7
February 4, 2008
Simplified Schematic
Description of Operation and Application
Information
Product Description
The EL5173 and EL5373 are wide bandwidth, low power
and single/differential ended to differential output amplifiers.
They have a fixed gain of 2. The EL5173 is a single channel
differential amplifier. The EL5373 is a triple channel
differential amplifier. The EL5173 and EL5373 have a -3dB
bandwidth of 450MHz while driving a 200
Ω
differential load.
The EL5173 and EL5373 are available with a power down
feature to reduce the power while the amplifiers are
disabled.
Input, Output and Supply Voltage Range
The EL5173 and EL5373 have been designed to operate
with a single supply voltage of 5V to 10V or a split supplies
with its total voltage from 5V to 10V. The amplifiers have an
input common mode voltage range from -4.5V to 3.4V for
±5V supply. The differential mode input range (DMIR)
between the two inputs is from -2.3V to +2.3V. The input
voltage range at the REF pin is from -3.3V to 3.7V. If the
input common mode or differential mode signal is outside the
above-specified ranges, it will cause the output signal
distorted.
The output of the EL5173 and EL5373 can swing from -3.3V
to 3.6V at 200
Ω
differential load at ±5V supply. As the load
resistance becomes lower, the output swing is reduced.
Differential and Common Mode Gain Settings
As shown at the simplified schematic, since the feedback
resistors RF and the gain resistor are integrated with 200
Ω
and 400
Ω
, the EL5173 and EL5373 have a fixed gain of 2.
The common mode gain is always one.
Driving Capacitive Loads and Cables
The EL5173 and EL5373 can drive 16pF differential
capacitor in parallel with 200
Ω
differential load with less than
3.5dB of peaking. If less peaking is desired in applications, a
small series resistor (usually between 5
Ω
to 50
Ω
) can be
placed in series with each output to eliminate most peaking.
However, this will reduce the gain slightly.
When used as a cable driver, double termination is always
recommended for reflection-free performance. For those
applications, 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
The EL5173 and EL5373 can be disabled and placed their
outputs in a high impedance state. The turn off time is about
1.2μs and the turn on time is about 100ns. When disabled,
the amplifier’s supply current is reduced to 40μA for I
S
+ and
2.5μA for I
S
- typically, thereby effectively eliminating the
power consumption. The amplifier’s power down can be
controlled by standard CMOS signal levels at the ENABLE
pin. The applied logic signal is relative to V
S
+ pin. Letting the
EN pin float or applying a signal that is less than 1.5V below
V
S
+ will enable the amplifier. The amplifier will be disabled
when the signal at EN pin is above V
S
+ - 0.5V.
Output Drive Capability
The EL5173 and EL5373 have internal short circuit
protection. Its typical short circuit current is ±55mA. If the
output is shorted indefinitely, the power dissipation could
easily increase such that the part will be destroyed.
REF
R
10
R
9
R
CD
R
CD
OUT+
OUT-
C
C
R
6
R
5
C
C
R
4
R
3
R
7
R
8
R
2
R
1
V
B1
FBN
FBP
IN-
IN+
V
B2
V
S
+
V
S
-
200
Ω
200
Ω
400
Ω
EL5173, EL5373
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| EL5374IU | 550MHz Differential Twisted-Pair Drivers |
| EL5374IU-T13 | 550MHz Differential Twisted-Pair Drivers |
| EL5374IU-T7 | 550MHz Differential Twisted-Pair Drivers |
| EL5374IUZ | 550MHz Differential Twisted-Pair Drivers |
| EL5374IUZ-T13 | 550MHz Differential Twisted-Pair Drivers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EL5173IS | 功能描述:IC DRIVER DIFF 450MHZ TP 8-SOIC RoHS:否 類(lèi)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(lèi)型:電壓反饋 電路數(shù):4 輸出類(lèi)型:滿(mǎn)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(lèi)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) |
| EL5173IS-T13 | 功能描述:IC DRIVER SGL 450MHZ DIFF 8-SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類(lèi)型:通用 電路數(shù):2 輸出類(lèi)型:滿(mǎn)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(lèi)型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| EL5173IS-T7 | 功能描述:IC DRIVER DIFF 450MHZ TP 8-SOIC RoHS:否 類(lèi)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(lèi)型:電壓反饋 電路數(shù):4 輸出類(lèi)型:滿(mǎn)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(lèi)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) |
| EL5173ISZ | 功能描述:差分放大器 EL5173ISZ 500MHZ DIFF DRVR GAIN=2 RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補(bǔ)償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
| EL5173ISZ-T13 | 功能描述:差分放大器 EL5173ISZ 500MHZ DIFF DRVR GAIN=2 RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補(bǔ)償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
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