添加到信号链设计器

AD8079:  Dual 260 MHz Gain = +2.0 & +2.2 Buffer

产品详情

The AD8079 is a dual, low power, high speed buffer designed to operate on ±5 V supplies. The AD8079's pinout offers excellent input and output isolation compared to the traditional dual amplifier pin configuration. With two ac ground pins separating both the inputs and outputs, the AD8079 achieves very low crosstalk of less than -70 dB at 5 MHz.

Additionally, the AD8079 contains gain setting resistors factory set at G = +2.0 (A grade) or Gain = +2.2 (B grade) allowing circuit configurations with minimal external components. The B grade gain of +2.2 compensates for gain loss through a system by providing a single-point trim. Using active laser trimming of these resistors, the AD8079 guarantees tight control of gain and channel-channel gain matching. With its performance and figuration, the AD8079 is well suited for driving differential cables and transformers. Its low distortion and fast settling are ideal for buffering high speed dual or differential A-to-D converters.

The AD8079 features a unique transimpedance linearization circuitry. This allows it to drive video loads with excellent differential gain and phase performance of 0.01% and 0.02° on only 50 mW of power per amplifier. It features gain flatness of 0.1 dB to 50 MHz. This makes the AD8079 ideal for professional video electronics such as cameras and video switchers.

The AD8079 offers low power of 5 mA/amplifier (VS = ±5 V) and can run on a single +12 V power supply while delivering over 70 mA of load current. All of this is offered in a small 8-pin SOIC package. These features make this amplifier ideal for portable and battery powered applications where size and power are critical.

The outstanding bandwidth of 260 MHz along with 800 V/µs of slew rate make the AD8079 useful in many general purpose high speed applications where dual power supplies of ±3 V to ±6 V are required.

The AD8079 is available in the industrial temperature range of -40°C to +85°C.

特点和优势

  • Factory Set Gain
    Gain of 2.2 Compensates for System Gain Loss
    Minimizes External Components
    Tight Control of Gain and Gain Matching (0.1%)
  • Optimum Dual Pinout
    Simplifies PCB Layout
    Low Crosstalk of -70dB @ 5MHz
  • Excellent Video Specifications (RL=150 Ω)
    Gain Flatness 0.1dB to 50MHz
    0.01% Differential Gain Error
    0.02° Differential Phase Error
  • Low Power of 50 mW/Amplifier (5mA)
  • High Speed and Fast Settling
    260MHz, -3dB Bandwidth
    750 V/µs Slew Rate (2 V Step), 800 V/µs 4 V Step)
    40 ns Settling Time to 0.1% (2V Step)
  • Low Distortion of -65dBc THD, fc=5MHz
  • High Output Drive of Over 70mA

AD8079功能框图

文档

快讯名称 内容类型 文件类型
AD8079: Dual 260 MHz Gain = +2.0 & +2.2 Buffer Data Sheet  (Rev A, 11/1996) (pdf, 348 kB) 产品数据手册 PDF
AN-581: 单电源应用中的偏置和去耦运算放大器  (pdf, 0) 应用笔记 PDF
AN-581: Biasing and Decoupling Op Amps in Single Supply Applications  (pdf, 166 kB) 应用笔记 PDF
AN-417: 在低压高速系统中利用快速轨到轨运算放大器减少设计限制  (pdf, 228 kB) 应用笔记 PDF
AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed Systems  (pdf, 228 kB)
Movement towards lower power supply voltages is driven by the demand that systems consume less and less power coupled with the desire to reduce the number of power supply voltages in the system. The following applications are discussed: Single-Ended and Differential Input ADC Input Circuits, Video Line Driver, Active Filter, HDSL Transceiver, and Transformer Drive Circuits.
应用笔记 PDF
AN-402: 以输入箝位放大器取代输出箝位运算放大器  (pdf, 294 kB)
目前,多数箝位放大器都依赖于一种称为输出箝位放大器(OCA)的输出箝位架构。一种被称为输入箝位放大器(ICA)的新型架构可提供更高的箝位精度和更低的失真。
应用笔记 PDF
AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps  (pdf, 55 kB)
So far most clamping amplifiers have relied upon an output clamping architecture and are called output clamp amps (OCAs). A new architecture called an input clamp amp (ICA) offers superior clamping accuracy and lower distortion.
应用笔记 PDF
AN-356: 用户指南:运算放大器规格参数的应用和测量  (pdf, 538 kB) 应用笔记 PDF
AN-356: User's Guide to Applying and Measuring Operational Amplifier Specifications  (pdf, 538 kB) 应用笔记 PDF
MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps  (pdf, 62 kB) 技术指南 PDF
MT-059: 补偿输入电容对电流电压转换器所用电压反馈和电流反馈型运算放大器的影响  (pdf, 69 kB) 技术指南 PDF
MT-058: 反馈电容对VFB和CFB运算放大器的影响  (pdf, 320 kB) 技术指南 PDF
MT-056: 高速电压反馈运算放大器  (pdf, 109 kB) 技术指南 PDF
MT-053:运算放大器失真:HD、THD、THD + N、IMD、SFDR、MTPR  (pdf, 455 kB) 技术指南 PDF
MT-052:运算放大器噪声指数:不要被误导  (pdf, 199 kB) 技术指南 PDF
MT-050: 二阶系统的运算放大器总输出噪声计算  (pdf, 38 kB) 技术指南 PDF
MT-049:单极点系统的运算放大器总输出噪声计算  (pdf, 40 kB) 技术指南 PDF
MT-048:运算放大器噪声关系:1/f噪声、均方根(RMS)噪声与等效噪声带宽  (pdf, 81 kB) 技术指南 PDF
MT-047:运算放大器噪声  (pdf, 72 kB) 技术指南 PDF
MT-033:电压反馈型运算放大器的增益和带宽  (pdf, 251 kB) 技术指南 PDF
MT-032: Ideal Voltage Feedback (VFB) Op Amp  (pdf, 65 kB) 技术指南 PDF
A Stress-Free Method for Choosing High-Speed Op Amps
A decision-tree approach to making the critical decision about high-speed op amp selection, including a look at some helpful tools.
在线研讨会 WEBCAST
High Speed Amplifiers Selection Table  (pdf, 77 kB) 产品选型指南 PDF
RAQs index 非常见问题解答 HTML
术语表 专业词汇表 HTML

设计工具,模型,驱动及软件

快讯名称 内容类型 文件类型
dBm/dBu/dBv Calculator
This calculator converts between standard units of power measurement and signal strength.
工具与转换 HTML
Power Dissipation vs Die Temp
This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.
工具与转换 HTML
ADIsimOpAmp™
这款工具可帮助用户选择、评估电压反馈型运算放大器以及排除故障。它使用典型数据模拟所选放大器的行为。借助这款工具,用户可以选择放大器,配置电路,施加信号,以及评估性能。它可用于检查放大器在给定电路中的特性,例如带宽、压摆率、输入/输出范围、增益误差、负载电流、稳定性问题和直流误差。
ADIsim Design/Simulation Tools HTML
Analog Filter Wizard 2.0
The Analog Filter Wizard™ helps you design a low-pass, high-pass, band-pass or band-stop filter with actual op amps. It then simulates the filter’s performance with these op amps in real time. You can ask the tool to optimize for power, noise, or voltage range, and it will pick op amps and passive components appropriately. Or you can adjust the components manually yourself.
ADIsim Design/Simulation Tools HTML
运放稳定性
演示运放缓冲器的稳定性影响的小应用程序。
Design Calculators HTML
AD8079 SPICE Macro-Model SPICE 模型 HTML

评估套件,原理图符号和PCB封装

原理图符号和PCB封装— ADI公司提供与当今众多CAD系统兼容的原理图符号和PCB封装(Symbols & Footprints),以便更广泛、更轻松地使用。

Sample样片申请及购买

价格,封装及供货状态

AD8079 型号选项
产品型号 封装 引脚 温度范围 包装和数量 报价*(100-499) 报价*1000 pcs RoHS 查看PCN/PDN 查看库存/
购买/样片
AD8079AR 产品状态: 量产 8 ld SOIC 8 工业 Tube, 98 $ 7.20 $ 6.53 N  材料信息 查看PCN 订购
AD8079ARZ 产品状态: 量产 8 ld SOIC 8 工业 Tube, 98 $ 5.05 $ 4.56 Y  材料信息 查看PCN 订购
AD8079ARZ-REEL 产品状态: 量产 8 ld SOIC 8 工业 Reel, 2500 - $ 4.56 Y  材料信息 查看PCN 订购
AD8079ARZ-REEL7 产品状态: 量产 8 ld SOIC 8 工业 Reel, 1000 $ 5.05 $ 4.56 Y  材料信息 查看PCN 订购
AD8079BR-REEL 产品状态: 最后订购时间 8 ld SOIC 8 工业 Reel, 2500 - $ 5.02 N  材料信息 查看PCN/PDN 订购
AD8079BR-REEL7 产品状态: 最后订购时间 8 ld SOIC 8 工业 Reel, 1000 $ 5.54 $ 5.02 N  材料信息 查看PCN/PDN 订购
AD8079BRZ 产品状态: 量产 8 ld SOIC 8 工业 Tube, 98 $ 6.57 $ 5.93 Y  材料信息 查看PCN 订购 样片
AD8079BRZ-REEL 产品状态: 量产 8 ld SOIC 8 工业 Reel, 2500 - $ 5.93 Y  材料信息 查看PCN 订购
AD8079BRZ-REEL7 产品状态: 量产 8 ld SOIC 8 工业 Reel, 1000 $ 6.57 $ 5.93 Y  材料信息 查看PCN 订购
帮助

这里所列出的美国报价单仅供预算参考,指美元报价(规定订量的每片美元,美国离岸价),如有修改不再另行通知。由于地区关税、商业税、汇率及手续费原因,国际报价可能不同。对于特殊批量报价,请与您当地的ADI公司办事处或代理商联络。对于评估板和套件的报价是指一个单位价格。

沪ICP备09046653号
产品评价 X
content here.
content here.

产品评价

关闭