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参数资料
| 型号： | CA3280AE |
| 厂商： | INTERSIL CORP |
| 元件分类： | 运动控制电子 |
| 英文描述： | Dual, 9MHz, Operational Transconductance Amplifier (OTA) |
| 中文描述： | DUAL OP-AMP, 1500 uV OFFSET-MAX, 9 MHz BAND WIDTH, PDIP16 |
| 封装： | PLASTIC, DIP-16 |
| 文件页数： | 6/10页 |
| 文件大小： | 286K |
| 代理商： | CA3280AE |
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 6. DIFFERENTIAL TO SINGLE ENDED CONVERTER
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
相关PDF资料 |
PDF描述 |
|---|---|
| CA3280AF3 | Dual, 9MHz, Operational Transconductance Amplifier (OTA) |
| CA3280E | Dual, 9MHz, Operational Transconductance Amplifier (OTA) |
| CA3282AS1 | Octal Low Side Power Driver with Serial Bus Control |
| CA3282 | Octal Low Side Power Driver with Serial Bus Control(串行总线控制的八低边功率驱动器) |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CA3280AF | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Transconductance Operational Amplifier |
| CA3280AF3 | 制造商:RCA 功能描述: |
| CA3280E | 功能描述:IC OPAMP TRANSCND DUAL 9MZ 16DIP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1,000 系列:- 放大器类型:电压反馈 电路数:4 输出类型:满摆幅 转换速率:33 V/µs 增益带宽积:20MHz -3db带宽:30MHz 电流 - 输入偏压:2nA 电压 - 输入偏移:3000µV 电流 - 电源:2.5mA 电流 - 输出 / 通道:30mA 电压 - 电源，单路/双路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOIC 包装:带卷 (TR) |
| CA3280F | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Transconductance Operational Amplifier |
| CA3280F3 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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