FN7103.9 September 14, 2010 VOUT = Maximum output voltage of the application
參數(shù)資料
型號: EL8100IS
廠商: Intersil
文件頁數(shù): 2/14頁
文件大?。?/td> 0K
描述: IC OP AMP 200MHZ R-R 8-SOIC
標準包裝: 97
放大器類型: 電壓反饋
電路數(shù): 1
輸出類型: 滿擺幅
轉換速率: 200 V/µs
增益帶寬積: 100MHz
-3db帶寬: 200MHz
電流 - 輸入偏壓: 1.5µA
電壓 - 輸入偏移: 800µV
電流 - 電源: 2mA
電流 - 輸出 / 通道: 65mA
電壓 - 電源,單路/雙路(±): 3 V ~ 5 V,±1.5 V ~ 2.5 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)
供應商設備封裝: 8-SOIC
包裝: 管件
10
FN7103.9
September 14, 2010
VOUT = Maximum output voltage of the application
RLOAD = Load resistance tied to ground
ILOAD = Load current
By setting the two PDMAX equations equal to each other, we
can solve the output current and RLOAD 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 VS- pin is
connected to the ground plane, a single 4.7F tantalum
capacitor in parallel with a 0.1F ceramic capacitor from VS+
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 VS- 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
Ω video load. A 2VP-P 2MHz
sine wave is applied to Amp A and a 1VP-P 2MHz sine wave
is applied to Amp B. Figure 30 shows the ENABLE signal
and the resulting output waveform at VOUT. Observe the
break-before-make operation of the multiplexing. Amp A is
on and VIN1 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 VIN2 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
VOUT
VIN
75
Ω
+
-
75
Ω
1k
75
Ω
VS+
VS-
FIGURE 28. VIDEO SIGNAL
1.0V
0.5V
0V
1.0V
0.5V
0V
M = 10s/DIV
VOUT
VIN
FIGURE 29. TWO TO ONE MULTIPLEXER
+2.5V
1k
2MHz
75
Ω
+
-
1K
75
Ω
-2.5V
VOUT
75
Ω
1VP-P
B
+2.5V
1K
2MHz
+
-
1k
75
Ω
-2.5V
2VP-P
A
ENABLE
EL8100, EL8101
相關PDF資料
PDF描述
960216-7102-AR CONN SOCKET DUAL R/A 16POS GOLD
EL5455IS IC AMP 270MHZ V-FB 14-SOIC
NPPC152KFMS-RC CONN FMALE 30POS DL .1" GOLD SMD
MMH23-0441C1 CONN RACK/PANEL 44POS 5A
EL5362IS IC AMP 500MHZ CURR FB 16-SOIC
相關代理商/技術參數(shù)
參數(shù)描述
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:- 標準包裝:50 系列:LinCMOS™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉換速率: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) 供應商設備封裝: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:- 標準包裝: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) 供應商設備封裝: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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
EL8100ISZ-T13 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
EL8100ISZ-T7 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel