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OPA4684IDBW

更新时间： 2024-02-24 20:32:22
品牌 Logo 应用领域
德州仪器 - TI 运算放大器
页数 文件大小 规格书
32页 1314K
描述
QUAD LOW-POWER CURRENT-FEEDBACK OPERATIONAL AMPLIFIER

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中文翻译

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OPA4684IDBW 技术参数

生命周期：Active零件包装代码：DIP
包装说明：DIP-14针数：14
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.33.00.01Factory Lead Time：6 weeks
风险等级：5.81放大器类型：OPERATIONAL AMPLIFIER
架构：CURRENT-FEEDBACK最大平均偏置电流 (IIB)：10 µA
25C 时的最大偏置电流 (IIB)：15 µA最小共模抑制比：53 dB
标称共模抑制比：60 dB频率补偿：YES
最大输入失调电压：4000 µVJESD-30 代码：R-CDIP-T14
长度：18.545 mm低-偏置：NO
低-失调：NO微功率：NO
负供电电压上限：-6.5 V标称负供电电压 (Vsup)：-5 V
功能数量：4端子数量：14
最高工作温度：125 °C最低工作温度：-55 °C
封装主体材料：CERAMIC, METAL-SEALED COFIRED封装代码：DIP
封装形状：RECTANGULAR封装形式：IN-LINE
包装方法：TUBE峰值回流温度（摄氏度）：NOT SPECIFIED
功率：NO可编程功率：NO
认证状态：Not Qualified座面最大高度：4.45 mm
标称压摆率：820 V/us子类别：Operational Amplifier
最大压摆率：1.8 mA供电电压上限：6.5 V
标称供电电压 (Vsup)：5 V表面贴装：NO
技术：BIPOLAR温度等级：MILITARY
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
标称均一增益带宽：210000 kHz宽度：7.62 mm
Base Number Matches：1

OPA4684IDBW 数据手册

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SGLS145B − AUGUST 2003 − REVISED FEBRUARY 2004  
features  
applications  
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Minimal Bandwidth Change Versus Gain  
D
D
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D
Low-Power Broadcast Video Drivers  
Equalizing Filters  
170-MHz Bandwidth at G = +2  
> 120 MHz Bandwidth To Gain > +10  
Low Distortion: < −78 dBc at 5 MHz  
High Output Current: 120 mA  
Saw Filter High-Gain Post Amplifiers  
Multichannel Summing Amplifiers  
Wideband Differential Channels  
Single 5-V to 12-V Supply Operation  
Dual 2.5 to 6.0V Supply Operation  
Low Supply Current: 6.8 mA Total  
Analog-to-Digital Converters (ADC) Input  
Drivers  
D
Multiple Pole Active Filters  
D
OPA4658 Low-Power Upgrade  
description  
The OPA4684 provides a new level of performance in low-power, wideband, current-feedback (CFB) amplifiers.  
This CFB amplifier is among the first to use an internally closed-loop input buffer stage that enhances  
PLUS  
performance significantly over earlier low-power CFB amplifiers. While retaining the benefits of very low power  
operation, this new architecture provides many of the benefits of a more ideal CFB amplifier. The closed-loop  
input stage buffer gives a very low and linearized impedance path at the inverting input to sense the feedback  
error current. This improved inverting input impedance retains exceptional bandwidth to much higher gains and  
improves harmonic distortion over earlier solutions limited by inverting input linearity. Beyond simple high-gain  
applications, the OPA4684 CFB  
amplifier permits the gain setting element to be set with considerable  
PLUS  
freedom from amplifier bandwidth interaction. This allows frequency response peaking elements to be added,  
multiple input inverting summing circuits to have greater bandwidth, and low-power line drivers to meet the  
demanding requirements of studio cameras and broadcast video.  
The output capability of the OPA4684 also sets a new mark in performance for low-power current-feedback  
amplifiers. Delivering a full 4Vp-p swing on 5V supplies, the OPA4684 also has the output current to support  
> 3-V swing into 50 Ω. This minimal output headroom requirement is complemented by a similar 1.2-V input  
stage headroom giving exceptional capability for single +5V operation.  
The OPA4684’s low 6.8-mA supply current is precisely trimmed at 25°C. This trim, along with low shift over  
temperature and supply voltage, gives a very robust design over a wide range of operating conditions.  
CFB  
PLUS  
BW (MHz) vs Gain  
1 of 4 Channels  
V
+
V
O
V
−
Z
I
(S) ERR  
I
ERR  
R
F
R
G
Low Power CFB  
Amplifer  
PLUS  
Patent Pending  
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.  
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Copyright 2003− 2004 Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...32

中文翻译

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