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參數(shù)資料
| 型號： | CA3280 |
| 廠商： | Intersil Corporation |
| 元件分類： | 運動控制電子 |
| 英文描述： | Dual, 9MHz, Operational Transconductance Amplifier (OTA) |
| 中文描述： | 雙通道，為9MHz，運算跨導放大器（OTA）的 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大小： | 286K |
| 代理商： | CA3280 |
6
of the CA3280. The linearization diode impedance also
decreases as the diode bias current increases, which further
loads the input. The diodes, in addition to acting as a
linearization network, also operate as an additional
attenuation system to accommodate input signals in the volt
range when they are applied through appropriate input
resistors.
Figure 10 shows a triangle wave to sine wave converter
using the CA3280. Two 100k
resistors are connected
between the differential amplifier emitters and V+ to reduce
the current flow through the differential amplifier. This allows
the amplifier to fully cut off during peak input signal
excursions. THD is appropriately 0.37% for this circuit.
FIGURE 4. VOA SHOWING LINEARIZATION DIODES AND
CURRENT DRIVE
FIGURE 5. BLOCK DIAGRAM OF LINEARIZED VOA
FIGURE 7. TYPICAL GAIN CONTROL CIRCUIT
V+
VOA
V-
R
D
= SMALL SIGNAL DIODE
IMPEDANCE
R
D
≈
52
I
D
(mA)x 1.34 =
70
I
D
I
D
I
ABC
R
D
VOA
I
D
I
ABC
4
1/2
CA3280
+
-
13
15
16
3
2k
1
14
+15V
68k
SINGLE-
ENDED
OUTPUT
DIFFERENTIAL
INPUT
2k
10k
-15V
4
1/2
CA3280
+
-
13
15
16
14
10k
3
1
V+ = +15V
68k
OUTPUT
21V
P-P
14mV AGC
FEEDTHRU
400
μ
V
NOISE AT
MAX GAIN
330k
15k
V- = -15V
20k
10k
600
10V
P-P
INPUT
V+
V-
100k
VOLTAGE
CONTROL
CA3280, CA3280A
相關PDF資料 |
PDF描述 |
|---|---|
| CA3280A | Dual, 9MHz, Operational Transconductance Amplifier (OTA) |
| CA3280AE | Dual, 9MHz, Operational Transconductance Amplifier (OTA) |
| CA3280AF3 | Dual, 9MHz, Operational Transconductance Amplifier (OTA) |
| CA3280E | Dual, 9MHz, Operational Transconductance Amplifier (OTA) |
| CA3282AS1 | Octal Low Side Power Driver with Serial Bus Control |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| CA3280_02 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual, 9MHz, Operational Transconductance Amplifier (OTA) |
| CA3280-8 | 制造商:ITT Interconnect Solutions 功能描述: |
| CA3280A | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual, 9MHz, Operational Transconductance Amplifier (OTA) |
| CA3280AE | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual, 9MHz, Operational Transconductance Amplifier (OTA) |
| CA3280AF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Transconductance Operational Amplifier |
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