- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄363780 > OPA646U Low Power, Wide Bandwidth OPERATIONAL AMPLIFIER PDF資料下載
參數(shù)資料
| 型號(hào)： | OPA646U |
| 英文描述： | Low Power, Wide Bandwidth OPERATIONAL AMPLIFIER |
| 中文描述： | 低功耗，寬帶運(yùn)算放大器 |
| 文件頁(yè)數(shù)： | 11/13頁(yè) |
| 文件大?。?/td> | 165K |
| 代理商： | OPA646U |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)當(dāng)前第11頁(yè)第12頁(yè)第13頁(yè)
OPA646
11
–40
–50
–60
–70
–80
–90
–100
Load Resistance (
)
10
20
50
100
200
500
1K
H
3f
O
2f
O
(G = +1, f
O
= 5MHz)
NOISE FIGURE
The OPA646 voltage and current noise spectral densities are
specified in the Typical Performance Curves. For RF appli-
cations, however, Noise Figure (NF) is often the preferred
noise specification since it allows system noise performance
to be more easily calculated. The OPA646’s Noise Figure vs
Source Resistance is shown in Figure 7.
FIGURE 7. Noise Figure vs Source Resistance.
FIGURE 6. 5MHz Harmonic Distortion vs Load Resistance
with R
F
= 402
.
DISTORTION
The OPA646’s harmonic distortion characteristics into a
100
load are shown vs frequency and power output in the
Typical Performance Curves. Distortion can be significantly
improved by increasing the load resistance as illustrated in
Figure 6. Remember to include the contribution of the
feedback resistance when calculating the effective load
resistance seen by the amplifier.
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 are available
for the OPA646. Contact Burr-Brown Applications Depart-
ment to receive a spice diskette.
DEMONSTRATION BOARDS
Demonstration boards to speed prototyping are available.
Refer to the DEM-OPA64X Data Sheet for details.
25
20
15
10
5
0
10
Source Resistance (
)
N
100
1k
10k
100k
NF = 10 LOG 1 +
e
n2
+ (I
n
R
S
)
2
4KTR
S
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| OPA650 | Wideband, Low Power Voltage Feedback OPERATIONAL AMPLIFIER |
| OPA650N | Wideband, Low Power Voltage Feedback OPERATIONAL AMPLIFIER |
| OPA650NB | Wideband, Low Power Voltage Feedback OPERATIONAL AMPLIFIER |
| OPA650P | Wideband, Low Power Voltage Feedback OPERATIONAL AMPLIFIER |
| OPA650U | Wideband, Low Power Voltage Feedback OPERATIONAL AMPLIFIER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OPA646UB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| OPA648 | 制造商:BB 制造商全稱(chēng):BB 功能描述:ULTRA-WIDEBAND CURRENT FEEDBACK OPERATIONAL AMPLIFIER |
| OPA648H | 制造商:BB 制造商全稱(chēng):BB 功能描述:ULTRA-WIDEBAND CURRENT FEEDBACK OPERATIONAL AMPLIFIER |
| OPA648P | 制造商:BB 制造商全稱(chēng):BB 功能描述:ULTRA-WIDEBAND CURRENT FEEDBACK OPERATIONAL AMPLIFIER |
| OPA648U | 制造商:BB 制造商全稱(chēng):BB 功能描述:ULTRA-WIDEBAND CURRENT FEEDBACK OPERATIONAL AMPLIFIER |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。