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OPA3684IDBQ PDF预览

OPA3684IDBQ

更新时间： 2024-01-14 13:45:14
品牌 Logo 应用领域
BB 运算放大器光电二极管
页数 文件大小 规格书
26页 466K
描述
Low-Power, Triple Current-Feedback OPERATIONAL AMPLIFIER With Disable

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中文翻译

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OPA3684IDBQ 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：6 weeks
风险等级：5.74Is Samacsys：N
放大器类型：OPERATIONAL AMPLIFIER架构：CURRENT-FEEDBACK
最大平均偏置电流 (IIB)：10 µA标称带宽 (3dB)：75 MHz
25C 时的最大偏置电流 (IIB)：14.5 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：3500 µVJESD-30 代码：R-PDSO-G14
JESD-609代码：e4长度：8.65 mm
低-偏置：NO低-失调：NO
微功率：NO湿度敏感等级：2
负供电电压上限：-6.5 V标称负供电电压 (Vsup)：-5 V
功能数量：3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
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
包装方法：TR峰值回流温度（摄氏度）：260
功率：NO可编程功率：NO
认证状态：Not Qualified座面最大高度：1.75 mm
最小摆率：285 V/us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：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
标称均一增益带宽：210000 kHz宽带：YES
宽度：3.9 mmBase Number Matches：1

OPA3684IDBQ 数据手册

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OPA3684  
O
P
A
3
6
8
4
SBOS241A – MAY 2002 – REVISED SEPTEMBER 2002  
Low-Power, Triple Current-Feedback  
OPERATIONAL AMPLIFIER With Disable  
FEATURES  
APPLICATIONS  
● MINIMAL BANDWIDTH CHANGE VERSUS GAIN  
● 170MHz BANDWIDTH: G = +2  
● RGB LINE DRIVERS  
● LOW-POWER BROADCAST VIDEO DRIVERS  
● EQUALIZING FILTERS  
● MULTICHANNEL SUMMING AMPLIFIERS  
● PROFESSIONAL CAMERAS  
● ADC INPUT DRIVERS  
● > 120MHz BANDWIDTH TO GAIN > +10  
● LOW DISTORTION: < –82dBc at 5MHz  
● HIGH OUTPUT CURRENT: 120mA  
● SINGLE +5V TO +12V SUPPLY OPERATION  
● DUAL ±2.5V TO ±6.0V SUPPLY OPERATION  
● LOW SUPPLY CURRENT: 1.7mA/ch  
● LOW SHUTDOWN CURRENT: 100µA/ch  
have greater bandwidth, and low-power line drivers to meet the  
demanding requirements of studio cameras and broadcast video.  
DESCRIPTION  
The OPA3684 provides a new level of performance in low-power,  
wideband, current-feedback (CFB) amplifiers. This CFBPLUS am-  
plifier among the first to use an internally closed-loop input buffer  
stage that enhances 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 solu-  
tions limited by inverting input linearity. Beyond simple high-gain  
applications, the OPA3684 CFBPLUS amplifier permits the gain  
setting element to be set with considerable freedom from amplifier  
bandwidth interaction. This allows frequency response peaking  
elements to be added, multiple input inverting summing circuits to  
The output capability of the OPA3684 also sets a new mark in  
performance for low-power current-feedback amplifiers. Delivering  
a full ±4Vp-p swing on ±5V supplies, the OPA3684 also has the  
output current to support > ±3Vp-p into 50Ω. This minimal output  
headroom requirement is complemented by a similar 1.2V input  
stage headroom giving exceptional capability for single +5V opera-  
tion.  
The OPA3684’s low 1.7mA/ch 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. System power may be further reduced by using the  
optional disable control pin. Leaving this disable pin open, or holding  
it HIGH, gives normal operation. If pulled LOW, the OPA3684 supply  
current drops to less than 100µA/ch while the I/O pins go to a high  
impedance state.  
BW (MHz) vs GAIN  
1 of 3 Channels  
6
G = 1  
V+  
3
G = 2  
0
–3  
+
G = 5  
VO  
–6  
–9  
Z(S) IERR  
V–  
–12  
G = 10  
G = 20  
G = 50  
G = 100  
–15  
–18  
–21  
–24  
IERR  
RF  
RF = 800Ω  
10  
100  
200  
RG  
Low-Power  
Patent Pending  
Amplifier  
MHz  
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.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
Copyright © 2002, Texas Instruments Incorporated  
www.ti.com  
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