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參數(shù)資料
| 型號： | KH205 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Overdrive-Protected Wideband Op Amp |
| 中文描述： | 超速保護的寬帶運算放大器 |
| 文件頁數(shù)： | 6/7頁 |
| 文件大?。?/td> | 125K |
| 代理商： | KH205 |
DATA SHEET
KH205
6
REV. 1A February 2001
where:
I
IP3
o
= third-order output intercept, dBm at
the load.
I
P
o
= output power level, dBm at the load.
I
HD3
rd
= third-order distortion from the
fundamental, -dBc.
I
dBm is the power in mW, at the load,
expressed in dB.
Realized third-order output distortion is highly
dependent upon the external circuit.
common external circuit choices that improve 3
rd
order
distortion are:
Some of the
I
short and equal return paths from the load
to the supplies.
I
de-coupling capacitors of the correct value.
I
higher load resistance.
I
a lower ratio of the output swing to the
power supply voltage.
Printed Circuit Layout
As with any high frequency device, a good PCB layout
will enhance the performance of the KH205. Good
ground plane construction and power supply bypassing
close to the package are critical to achieving full perfor-
mance. In the non-inverting configuration, the amplifier is
sensitive to stray capacitance to ground at the inverting
input. Hence, the inverting node connections should be
small with minimal stray capacitance to the ground plane
or other nodes. Shunt capacitance across the feedback
resistor should not be used to compensate for this effect.
General layout and supply bypassing play major roles in
high frequency performance. Follow the steps below as
a basis for high frequency layout:
I
Include 6.8
μ
F tantalum and 0.1
μ
F ceramic
capacitors on both supplies.
I
Place the 6.8
μ
F capacitors within 0.75
inches of the power pins.
I
Place the 0.1
μ
F capacitors less than 0.1
inches from the power pins.
I
Remove the ground plane under and
around the part, especially near the input
and output pins to reduce parasitic
capacitance.
I
Minimize all trace lengths to reduce series
inductances.
I
Use flush-mount printed circuit board pins
for prototyping, never use high profile DIP
sockets.
Evaluation PC boards (part number 730008 for inverting,
730009 for non-inverting) for the KH205 are available to
aid in device testing.
相關(guān)PDF資料 |
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|---|---|
| KH206 | Overdrive-Protected Wideband Op Amp |
| KH207 | Low Distortion Wideband Op Amp |
| KH220 | Fast Settling Wideband Op Amp |
| KH231 | Fast Settling, Wideband Buffer/Amplifier (Av = 【1 to 【5) |
| KH232 | Low Distortion Wideband Op Amp |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KH205AI | 功能描述:運算放大器 - 運放 OP AMP WIDEBAND 170MHz 570mW 3MOHM 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(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 |
| KH205AK | 制造商:CADEKA 制造商全稱:CADEKA 功能描述:Overdrive-Protected Wideband Op Amp |
| KH205AM | 功能描述:運算放大器 - 運放 OP AMP WIDEBAND 170MHz 570mW 3MOHM 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(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 |
| KH205HXA | 制造商:CADEKA 制造商全稱:CADEKA 功能描述:Overdrive-Protected Wideband Op Amp |
| KH205HXC | 制造商:CADEKA 制造商全稱:CADEKA 功能描述:Overdrive-Protected Wideband Op Amp |
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