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參數(shù)資料
| 型號： | HA-2541 |
| 廠商： | Intersil Corporation |
| 英文描述： | 40MHz, Fast Settling, Unity Gain Stable, Operational Amplifier(40MHz、快速穩(wěn)定運(yùn)算放大器) |
| 中文描述： | 40MHz的，快速沉降，單位增益穩(wěn)定運(yùn)算放大器（40MHz的，快速穩(wěn)定運(yùn)算放大器） |
| 文件頁數(shù)： | 5/9頁 |
| 文件大小： | 481K |
| 代理商： | HA-2541 |
5
Typical Applications
(Also see Application Note AN550)
Application 1
High power amplifiers and buffers are in use in a wide variety
of applications. Many times the “high power” capability is
needed to drive large capacitive loads as well as low value
resistive loads. In both cases the final driver stage is usually a
power transistor of some type, but because of their inherently
low gain, several stages of pre-drivers are often required. The
HA-2541, with its 10mA output rating, is powerful enough to
drive a power transistor without additional stages of current
amplification. This capability is well demonstrated with the
high power buffer circuit in Figure 3.
The HA-2541 acts as the pre-driver to the output power
transistor. Together, they form a unity gain buffer with the
ability to drive three 50
coaxial cables in parallel, each with
a capacitance of 2000pF. The total combined load is 16.6
and 6000pF capacitance.
Application 2
VIDEO
One of the primary uses of the HA-2541 is in the area of
video
applications.
These
construction, synchronization addition and removal, as well
as signal modification. A wide bandwidth device such as the
HA-2541 is well suited for use in this class of amplifier. This,
however, is a more involved group of applications than
ordinary amplifier applications since video signals contain
precise DC levels which must be retained.
applications
include
signal
The addition of a clamping circuit restores DC levels at the
output of an amplifier stage. The circuit shown in Figure 4
utilizes the HA-5320 sample and hold amplifier as the DC
clamp. Also shown is a 3.57MHz trap in series, which will
block the color burst portion of the video signal and allow the
DC level to be amplified and restored.
Suggested Offset Voltage Adjustment
D
2
HP2835
LOAD 16.6
; 6000pF
OR 12.5
; 6000pF
D
1
HP2835
+
HA-2541
-
R
3
100
50
R
1
R
2
1k
2N5886
532pF
D
3
FIGURE 3. DRIVING POWER TRANSISTORS TO GAIN
ADDITIONAL CURRENT BOOSTING
HA-2541
1k
1k
1k
1k
1k
75
3.57MHz
TRAP
FIGURE 4. VIDEO DC RESTORER
NC
NC
BAL
-IN
+IN
V-
NC
NC
NC
BAL
V+
OUT
NC
NC
1
2
3
4
5
6
7
14
13
12
11
10
9
8
+
-
NOTE: TestedOffsetAdjustmentRangeis|V
OS
+1mV|
minimum referred to output. Typical range is
±
15mV for
R
T
= 5k
.
R
T
HA-2541
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA-2541/883 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Wideband, Fast Settling, Unity Gain Stable, Operational Amplifier |
| HA-2541_04 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:40MHz, Fast Settling, Unity Gain Stable, Operational Amplifier |
| HA-2541883 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Wideband, Fast Settling, Unity Gain Stable, Operational Amplifier |
| HA-2542 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:70MHz, High Slew Rate, High Output Current Operational Amplifier |
| HA2542 WAF | 制造商:Intersil Corporation 功能描述: |
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