BUF634中文资料.doc

1 Feature 1特点 High Output Current: 250 mA 高输出电流：250毫安 Slew Rate: 2000 V/s 摆率(电压转换速率)：2000 V /S Pin-Selected Bandwidth: 30 MHz to 180 MHz 引脚选择带宽：30兆赫至180兆赫 Low Quiescent Current: 1.5 mA (30 MHz BW) 低静态输出电流：1.5毫安（30兆赫带宽） Wide Supply Range: 2.25 to 18 V 宽电压供应范围：2.25至18伏 Internal Current Limit 内部电流限制 Thermal Shutdown Protection 热关机保护 8-Pin PDIP, SOIC-8, 5-Lead TO-220, 5-Lead DDPAK-TO-263 Surface-Mount 8引脚PDIP，SOIC - 8、5引脚TO - 220，5引脚 ddpak-to-263表面贴装2 Applications 2应用 Valve Driver 阀门驱动器 Solenoid Driver螺线管（电磁）驱动器 Op Amp Current Booster运算放大器电流放大器 Line Driver线路驱动器 Headphone Driver耳机驱动器 Video Driver视频驱动程序 Motor Driver 电机驱动 Test Equipment测试设备 ATE Pin DriverATE自测引脚 驱动程序3 Description3 描述The BUF634 device is a high speed, unity-gain open-loop buffer recommended for a wide range of applications. The BUF634 device can be used inside the feedback loop of op amps to increase output current, eliminate thermal feedback, and improve capacitive load drive.是一种高速开环增益缓冲器广泛的应用范围中的建议，它可用于运算放大器的反馈环路内，一起增加输出电流消除热反馈和改善容性负载驱动。For low power applications, the BUF634 device operates on 1.5-mA quiescent current with 250-mA output, 2000-V/s slew rate, and 30-MHz bandwidth. Bandwidth can be adjusted from 30 MHz to 180 MHz by connecting a resistor between V and the BW Pin.对于一个低电压设备的应用，BUF634工作在1.5-毫安静态电流，输出电流250毫安，2000 V /的电压转换率和30 MHz带宽。频带宽度可以调整，从30兆赫调整到180兆赫，V和BW引脚之间连接一个电阻。Output circuitry is fully protected by internal current limit and thermal shut-down, making it rugged and easy to use.输出电路完全由内部电流限制和热关断保护，使其坚固耐用，易于使用。The BUF634 device is available in a variety of packages to suit mechanical and power dissipation requirements. Types include 8-pin PDIP, SOIC-8 surface-mount, 5-lead TO-220, and a 5-lead DDPAK-TO-263 surface-mount plastic power package.BUF634可在多种封装适合机械和功耗要求。类型包括8引脚DIP，SO-8表面贴装，5铅TO-220，采用5引脚DDPAK表面贴装塑料电源包。Pin Functions引脚功能PIN引脚DESCRIPTION描述NAME名称NO.I/O8 PINS5 PINSBW11IBandwidth adjust pin带宽调整引脚NC2, 5, 8No internal connection没有内部连接V+75IPositive power supply正电源VIN32IInput输入VO64OOutput输出V43INegative power supply负电源Thermal Information热性能信息THERMAL METRIC热计量BUF634PDIPSOICTO-220DDPAK-TO-263UNIT8 PINS8 PINS5 PINS5 PINSRJAJunction-to-ambient thermal resistance结至环境热阻46.5103.432.141.8C/WRJC(top)Junction-to-case (top) thermal resistance结对盒（顶）热阻34.844.225.645C/WRJBJunction-to-board thermal resistance结对板热阻23.844.518.324.8C/WJTJunction-to-top characterization parameter结对顶表征参数125.48.513.1C/WJBJunction-to-board characterization parameter结对板表征参数23.643.817.723.8C/WRJC(bot)Junction-to-case (bottom) thermal resistance连接至外壳（底部）热阻n/an/a0.72.4C/W在TA = 25C（1）Vs=15V，这是静态规格的低电流模式和宽的带宽模式，除非另有规定。PARAMETER（参数）TEST CONDITIONS（条件）MIN（最小）TYPMAXUNIT（单位）INPUT（输入）Offset Voltag偏移电压、补偿电压30100mVOffset Voltage vs Temperature偏移电压温度Specified Temperature Range指定的温度范围100V/COffset Voltage vs Power Supply偏移电压电源VS = 2.25 V(2) to 18 V0.11mV/VInput Bias Current输入偏置电流VIN = 0VLow Quiescent低静态Current Mode电流模式0.52AWide BandwidthMode宽带模式520Input Impedance输入阻抗RL = 100 Low QuiescentCurrent Mode80 | 8M | pFWide BandwidthMode8 | 8Noise Voltage噪声电压f = 10 kHz4nV/HzGAIN增益Gain增益RL = 1 k, VO = 10 V0.950.99V/VRL = 100 , VO = 10 V0.850.93RL = 67 , VO = 10 V0.80.9OUTPUT输出Current Output, Continuous 连续输出电流250mAVoltage Output电压输出PositiveIO = 10 mA(V+) 2.1(V+) 1.7VNegativeIO = 10 mA(V) +2.1(V) +1.8PositiveIO = 100 mA(V+) 3(V+) 2.4NegativeIO = 100 mA(V) +4(V) +3.5PositiveIO = 150 mA(V+) 4(V+) 2.8NegativeIO = 150 mA(V) +5(V) +4Short-Circuit Current短路电流Low Quiescent Current Mode低静态电流模式350550mAWide Bandwidth Mode宽带模式400550DYNAMIC RESPONSE 动态响应Bandwidth, 3dB带宽，3dbRL = 1 kLow QuiescentCurrent Mode30MHzWide BandwidthMode180RL = 100 Low QuiescentCurrent Mode20Low QuiescentCurrent Mode160Slew Rate转换速率20 Vp-p, RL = 100 2000V/sSettling Time稳定时间0.1%20-V Step, RL = 100 200ns1%50Differential Gain微分增益3.58 MHz, VO = 0.7 V,RL = 150 Low QuiescentCurrent Mode4%Wide Bandwid