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參數(shù)資料
| 型號： | EL8100IS |
| 廠商： | INTERSIL CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 200MHz Rail-to-Rail Amplifiers |
| 中文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數(shù)： | 10/11頁 |
| 文件大小： | 365K |
| 代理商： | EL8100IS |
10
FN7103.7
April 26, 2005
V
OUT
= Maximum output voltage of the application
R
LOAD
= Load resistance tied to ground
I
LOAD
= Load current
By setting the two PD
MAX
equations equal to each other, we
can solve the output current and R
LOAD
to avoid the device
overheat.
Power Supply Bypassing and Printed Circuit
Board Layout
As with any high frequency device, a good printed circuit
board layout is necessary for optimum performance. Lead
lengths should be as sort as possible. The power supply pin
must be well bypassed to reduce the risk of oscillation. For
normal single supply operation, where the V
S
- pin is
connected to the ground plane, a single 4.7μF tantalum
capacitor in parallel with a 0.1μF ceramic capacitor from V
S
+
to GND will suffice. This same capacitor combination should
be placed at each supply pin to ground if split supplies are to
be used. In this case, the V
S
- pin becomes the negative
supply rail.
For good AC performance, parasitic capacitance should be
kept to a minimum. Use of wire wound resistors should be
avoided because of their additional series inductance. Use
of sockets should also be avoided if possible. Sockets add
parasitic inductance and capacitance that can result in
compromised performance. Minimizing parasitic capacitance
at the amplifier’s inverting input pin is very important. The
feedback resistor should be placed very close to the
inverting input pin. Strip line design techniques are
recommended for the signal traces.
Typical Applications
VIDEO SYNC PULSE REMOVER
Many CMOS analog to digital converters have a parasitic
latch up problem when subjected to negative input voltage
levels. Since the sync tip contains no useful video
information and it is a negative going pulse, we can chop it
off. Figure 27 shows a gain of 2 connections for EL8100,
EL8101. Figure 28 shows the complete input video signal
applied at the input, as well as the output signal with the
negative going sync pulse removed.
MULTIPLEXER
Besides the normal power down usage, the ENABLE pin of
the EL8100 can be used for multiplexing applications.
Figure 29 shows two EL8100s with the outputs tied together,
driving a back terminated 75
video load. A 2V
P-P
2MHz
sine wave is applied to Amp A and a 1V
P-P
2MHz sine wave
is applied to Amp B. Figure 30 shows the ENABLE signal
and the resulting output waveform at V
OUT
. Observe the
break-before-make operation of the multiplexing. Amp A is
on and V
IN1
is passed through to the output when the
ENABLE signal is low and turns off in about 25ns when the
ENABLE signal is high. About 200ns later, Amp B turns on
and V
IN2
is passed through to the output. The break-before-
make operation ensures that more than one amplifier isn’t
trying to drive the bus at the same time.
FIGURE 27. SYNC PULSE Remover
5V
1K
V
OUT
V
IN
75
+
-
75
1K
75
V
S+
V
S-
FIGURE 28. VIDEO SIGNAL
1V
0.5V
0V
1V
0.5V
0V
M = 10μs/DIV
V
OUT
V
IN
FIGURE 29. TWO TO ONE MULTIPLEXER
+2.5V
1K
2MHz
75
+
-
1K
75
-2.5V
V
OUT
75
1V
P-P
B
+2.5V
1K
2MHz
2V
P-P
+
-
1K
75
-2.5V
A
ENABLE
EL8100, EL8101
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| EL8100ISZ-T13 | 200MHz Rail-to-Rail Amplifiers |
| EL8100ISZ-T7 | 200MHz Rail-to-Rail Amplifiers |
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| EL8100IS-T13 | 功能描述:IC AMP SGL R-R 200MHZ 8-SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:LinCMOS™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.05 V/µs 增益帶寬積:110kHz -3db帶寬:- 電流 - 輸入偏壓:0.7pA 電壓 - 輸入偏移:210µV 電流 - 電源:57µA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):3 V ~ 16 V，±1.5 V ~ 8 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:管件 產(chǎn)品目錄頁面:865 (CN2011-ZH PDF) 其它名稱:296-1834296-1834-5 |
| EL8100IS-T7 | 功能描述:IC OP AMP 200MHZ R-R 8-SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 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 |
| EL8100ISZ | 功能描述:運算放大器 - 運放 EL8100ISZ 200MHZ R2R AMP 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 |
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