MAX4178中文资料330MHz、增益为+1/+2、闭环缓冲器数据手册ADI规格书

描述 Description

The MAX4178/MAX4278 are ±5V, wide-bandwidth, fast-settling, closed-loop buffers featuring high slew rate, high precision, high output current, low noise, and low differential gain and phase errors. The MAX4178, with a -3dB bandwidth of 330MHz, is preset for unity voltage gain (0dB). The MAX4278 is preset for a voltage gain of +2 (6dB) and has a 310MHz -3dB bandwidth.
The MAX4178/MAX4278 feature the high slew rate and low power that are characteristic of current-mode feedback amplifiers. However, unlike conventional current-mode feedback amplifiers, these devices have a unique input stage that combines the benefits of current-feedback topology with those of the traditional voltage-feedback topology. This combination results in low input offset voltage and bias current, low noise, and high gain precision and power-supply rejection.
The MAX4178/MAX4278 are ideally suited for driving 50Ω or 75Ω> loads. They are the perfect choice for high-speed cable-driving applications, such as video routing. The MAX4178/MAX4278 are available in DIP, SO, space-saving µMAX®, and SOT23 packages.

特性 Features

• High Speed
• 330MHz -3dB Bandwidth (MAX4178)
• 310MHz -3dB Bandwidth (MAX4278)
• 250MHz Full-Power Bandwidth (VOUT = 2VP-P)
• 150MHz 0.1dB Flatness Bandwidth
• 1300V/µs Slew Rate (MAX4178)
• 1600V/µs Slew Rate (MAX4278)
• Low Differential Phase/Gain Error: 0.01°/0.04%
• 8mA Supply Current
• 1µA Input Bias Current
• 0.5mV Input Offset Voltage
• 5nV per √Hz Input-Referred Voltage Noise
• 2pA√Hz Input-Referred Current Noise
• 1.0% Max Gain Error with 100Ω Load
• Short-Circuit Protected
• 8000V ESD Protection
• Available in Space-Saving SOT23 Package

应用 Application

• 广播与高清晰度电视系统
• 通信系统
• 高速电缆驱动器
• 医学成像
• 精密高速DAC/ADC缓冲器
• 视频路由与切换系统