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VCA820ID

更新时间： 2024-11-03 12:17:03
品牌 Logo 应用领域
德州仪器 - TI 模拟IC信号电路放大器光电二极管
页数 文件大小 规格书
37页 1544K
描述
Wideband, 40dB Adjust Range, Linear in dB VARIABLE GAIN AMPLIFIER

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VCA820ID 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOIC
包装说明：SOIC-14针数：14
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01Factory Lead Time：1 week
风险等级：1.52Is Samacsys：N
模拟集成电路 - 其他类型：ANALOG CIRCUITJESD-30 代码：R-PDSO-G14
JESD-609代码：e4长度：8.65 mm
湿度敏感等级：2负电源电压最大值（Vsup）：-6 V
负电源电压最小值（Vsup）：-3.5 V标称负供电电压 (Vsup)：-5 V
信道数量：1功能数量：1
端子数量：14最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP14,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260电源：+-5 V
认证状态：Not Qualified座面最大高度：1.58 mm
子类别：Other Analog ICs最大供电电流 (Isup)：36 mA
最大供电电压 (Vsup)：6 V最小供电电压 (Vsup)：3.5 V
标称供电电压 (Vsup)：5 V表面贴装：YES
技术：BIPOLAR温度等级：INDUSTRIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.91 mm
Base Number Matches：1

VCA820ID 数据手册

 浏览型号VCA820ID的Datasheet PDF文件第2页浏览型号VCA820ID的Datasheet PDF文件第3页浏览型号VCA820ID的Datasheet PDF文件第4页浏览型号VCA820ID的Datasheet PDF文件第5页浏览型号VCA820ID的Datasheet PDF文件第6页浏览型号VCA820ID的Datasheet PDF文件第7页 
VCA820  
www.ti.com............................................................................................................................................ SBOS395C –OCTOBER 2007–REVISED OCTOBER 2009  
Wideband, > 40dB Adjust Range, Linear in dB  
VARIABLE GAIN AMPLIFIER  
Check for Samples: VCA820  
1
FEATURES  
DESCRIPTION  
23  
•
150MHz SMALL-SIGNAL BANDWIDTH  
137MHz, 5VPP BANDWIDTH (G = +10V/V)  
0.1dB GAIN FLATNESS to 28MHz  
1700V/μs SLEW RATE  
The VCA820 is a dc-coupled, wideband, linear in dB,  
continuously variable, voltage-controlled gain  
amplifier. It provides differential input to  
single-ended conversion with a high-impedance gain  
control input used to vary the gain down 40dB from  
the nominal maximum gain set by the gain resistor  
(RG) and feedback resistor (RF).  
•
•
•
•
•
•
a
> 40dB GAIN ADJUST RANGE  
HIGH GAIN ACCURACY: 20dB ±0.4dB  
HIGH OUTPUT CURRENT: 160mA  
The VCA820 internal architecture consists of two  
input buffers and an output current feedback amplifier  
stage integrated with a multiplier core to provide a  
complete variable gain amplifier (VGA) system that  
does not require external buffering. The maximum  
gain is set externally with two resistors, providing  
flexibility in designs. The maximum gain is intended  
to be set between +2V/V and +100V/V. Operating  
from ±5V supplies, the gain control voltage for the  
VCA820 adjusts the gain linearly in dB as the control  
voltage varies from 0V to +2V. For example, set for a  
maximum gain of +10V/V, the VCA820 provides  
20dB, at +2V input, to –20dB at 0V input of gain  
control range. The VCA820 offers excellent gain  
APPLICATIONS  
•
•
•
•
•
AGC RECEIVERS with RSSI  
DIFFERENTIAL LINE RECEIVERS  
PULSE AMPLITUDE COMPENSATION  
VARIABLE ATTENUATORS  
DROP-IN UPGRADE TO LMH6502  
RF  
VIN+  
+VIN  
RG+  
RS  
FB  
RG  
VCA820  
RG-  
-VIN  
VIN-  
linearity. For  
a
20dB maximum gain, and  
a
20W  
RS  
gain-control input voltage varying between 1V and  
2V, the gain does not deviate by more than ±0.4dB  
(maximum at +25°C).  
Figure 1. Differential Equalizer  
VCA820 RELATED PRODUCTS  
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
45  
40  
GAIN  
ADJUST  
RANGE  
(dB)  
INPUT  
NOISE  
(nV/√Hz)  
SIGNAL  
BANDWIDTH  
(MHz)  
SINGLES  
VCA810  
—
DUALS  
—
80  
45  
45  
52  
48  
40  
40  
40  
40  
2.4  
1.25  
1
35  
80  
VCA2612  
VCA2613  
VCA2615  
VCA2617  
—
—
80  
—
0.8  
4.1  
8.2  
7.0  
8.2  
7.0  
50  
—
50  
VCA820  
VCA821  
VCA822  
VCA824  
150  
420  
150  
420  
Input-Referred  
—
100k  
1M  
10M  
100M  
—
Frequency (Hz)  
—
Figure 2. Common-Mode Rejection Ratio  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
3
X2Y is a trademark of X2Y Corporation.  
All other trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2007–2009, Texas Instruments Incorporated  
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VCA820ID 替代型号

型号 品牌 替代类型 描述 数据表
LMH6503MAX/NOPB TI

类似代替

 宽带、低功耗、线性可变增益放大器 | D | 14 | -40 to 85
LMH6503MA/NOPB TI

类似代替

 宽带、低功耗、线性可变增益放大器 | D | 14 | -40 to 85
VCA821ID TI

类似代替

 Ultra-Wideband, > 40dB Gain Adjust Range, Linear in dB VARIABLE GAIN AMPLIFIER

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 		Wideband, 40dB Adjust Range, Linear in dB VARIABLE GAIN AMPLIFIER
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