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參數(shù)資料
| 型號： | HA3-2542-5 |
| 廠商： | HARRIS SEMICONDUCTOR |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 70MHz, High Slew Rate, High Output Current Operational Amplifier |
| 中文描述： | VIDEO AMPLIFIER, PDIP14 |
| 文件頁數(shù)： | 6/13頁 |
| 文件大小： | 824K |
| 代理商： | HA3-2542-5 |
6
Frequency Compensation
The HA-2542 may be externally compensated with a single
capacitor to ground. This provides the user the additional
flexibility in tailoring the frequency response of the amplifier.
A guideline to the response is demonstrated on the typical
performance curve showing the normalized AC parameters
versus compensation capacitance. It is suggested that the
user check and tailor the accurate compensation value for
each application. As shown additional phase margin is
achieved at the loss of slew rate and bandwidth.
For example, for a voltage gain of +2 (or -1) and a load of
500pF/2k
, 20pF is needed for compensation to give a small
signal bandwidth of 30MHz with 40
o
of phase margin. If a full
power output voltage of
±
10V is needed, this same
configuration will provide a bandwidth of 5MHz and a slew
rate of 200V/
μ
s.
If maximum bandwidth is desired and no compensation is
needed, care must be given to minimize parasitic
capacitance at the compensation pin. In some cases where
minimum gain applications are desired, bending up or totally
removing this pin may be the solution. In this case, care
must also be given to minimize load capacitance.
For wideband positive unity gain applications, the HA-2542
can also be over-compensated with capacitance greater
than 30pF to achieve bandwidths of around 25MHz. This
over-compensation will also improve capacitive load
handling or lower the noise bandwidth. This versatility along
with the
±
100mA output current makes the HA-2542 an
excellent high speed driver for many power applications.
Typical Applications
FIGURE 2. NONINVERTING CIRCUIT (A
VCL
= 100)
FIGURE 3. NONINVERTING CIRCUIT (A
VCL
= 2)
IN
OUT
+
-
990
10
G
40
30
20
10
0
0
-45
-90
-135
-180
P
Frequency (0dB) = 44.9MHz,
Phase Margin (0dB) = 40
o
FREQUENCY RESPONSE
IN
OUT
+
-
50
50
G
8
6
4
2
0
0
-45
-90
-135
-180
P
Frequency (dB) = 56MHz, Phase Margin (3dB) = 40
o
FREQUENCY RESPONSE
HA-2542
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HA-2542 | 70MHz, High Slew Rate, High Output Current Operational Amplifier(70MHz、高轉(zhuǎn)換速率高輸出電流運算放大器) |
| HA1-2546-5 | 30MHz, Voltage Output, Two Quadrant Analog Multiplier |
| HA9P2546-5 | 30MHz, Voltage Output, Two Quadrant Analog Multiplier |
| HA3-2546-5 | 30MHz, Voltage Output, Two Quadrant Analog Multiplier |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA3-2544-5 | 制造商:Harris Corporation 功能描述: |
| HA3-2544C-5 | 制造商:Rochester Electronics LLC 功能描述:OPAMP 45MHZ VFB 150V/US 8PDIP COM - Bulk |
| HA3-2546-5 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:30MHz, Voltage Output, Two Quadrant Analog Multiplier |
| HA3-2548-5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HA3-2556-9 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:57MHz, Wideband, Four Quadrant, Voltage Output Analog Multiplier |
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