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參數(shù)資料
| 型號(hào)： | OPA4658U |
| 英文描述： | Quad Wideband, Low Power Current Feedback OPERATIONAL AMPLIFIER |
| 中文描述： | 四組寬頻，低功耗電流反饋運(yùn)算放大器 |
| 文件頁(yè)數(shù)： | 12/14頁(yè) |
| 文件大?。?/td> | 247K |
| 代理商： | OPA4658U |
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OPA4658
FIGURE 9. Noise Figure vs Source Resistance.
10
100
1k
10k
100k
40
30
20
10
0
N
Source Resistance (
)
NF = 10LOG 1 +
e
n2
+ (InR
s
)
2
4KTR
S
TYPICAL APPLICATIONS
FIGURE 10. Low Distortion Video Amplifier.
OPA4658
V
OUT
402
402
Video
Input
75
75
75
Transmission Line
75
1/4
was used to establish a reference against which the perfor-
mance of the amplifier was measured. Signal averaging was
also used to measure the DG and DP of the test signal in order
to eliminate the generator’s contribution to measured ampli-
fier performance. Typical performance of the OPA4658 is
0.015% differential gain and 0.02
°
differential phase to both
NTSC and PAL standards.
NOISE FIGURE
The OPA4658’s voltage and current noise spectral densities
are specified in the Typical Performance Curves. For RF
applications, however, Noise Figure (NF) is often the pre-
ferred noise specification since it allows system noise per-
formance to be more easily calculated. The OPA4658’s
Noise Figure vs Source Resistance is shown in Figure 9.
SPICE MODELS
Computer simulation using SPICE is often useful when
analyzing the performance of analog circuits and systems.
This is particularly true for Video and RF amplifier circuits
where parasitic capacitance and inductance can have a major
effect on circuit performance. SPICE models using MicroSim
Corporation’s PSpice are available for the OPA4658. Evalu-
ation PC boards are also available. Contract Burr-Brown
applications departments to receive a SPICE Diskette.
DEMONSTRATION BOARD
PACKAGE
PRODUCT
DEM-OPA465xP
8-Pin DIP
OPA4658P
DEM-OPA465xU
SO-8
OPA4658U
OPA4658UB
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| OPA501 | High Current， High Power Operational Amplifier |
| OPA501AM | Voltage-Feedback Operational Amplifier |
| OPA502 | OPA502 - High Current. High Power OPERATIONAL AMPLIFIER |
| OPA512 | Very High Current， High Power Operational Amplifier |
| OPA512BM | Voltage-Feedback Operational Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OPA4658U/2K5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| OPA4658UB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| OPA4684 | 制造商:BB 制造商全稱:BB 功能描述:Wideband, Low-Power, Current Feedback Operational Amplifier |
| OPA4684ID | 功能描述:高速運(yùn)算放大器 Quad Low-Power Current Feedback 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 |
| OPA4684IDBW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:QUAD LOW-POWER CURRENT-FEEDBACK OPERATIONAL AMPLIFIER |
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