|
|||||||||
 |
|
||||||||
|
|
||||||||||||||
| . 网站首页 . 新闻 . 新品 . 方案 . 专访 . 活动 . DSP . EDA . 评测室 . 技术文库 . 会员区 . 商城 . 服务导航 . 邮购 . 资源 . | ||
 |
||
|
||
|
|||||
| Linear LTC6400-20高速放大器应用方案 | |||||
作者：Linear 文章来源：本站原创 点击数： 更新时间：2007-9-12  |
|||||
|
The LTC 6400-20 is a high-speed differential amplifier targeted at processing signals from DC to 300MHz. The part has been specifically designed to drive 12-, 14- and 16-bit ADCs with low noise and low distortion, but can also be used as a general-purpose broadband gain block. The LTC6400-20 is easy to use, with minimal support circuitry required. The output common mode voltage is set using an external pin, independent of the inputs, which eliminates the need for transformers or AC-coupling capacitors in many applications. The gain is internally fixed at 20dB (10V/V). The LTC6400 is a low noise and low distortion fully differential op amp/ADC driver with: • Operation from DC to 1.8GHz (–3dB bandwidth) • Fixed gain of 10V/V (20dB) • Differential input impedance 200Ω • Differential output impedance 25Ω • On-Chip 590MHz output filter The LTC6400-20 saves space and power compared to alternative solutions using IF gain blocks and transformers. The LTC6400-20 is packaged in a compact 16-lead 3mm × 3mm QFN package and operates over the –40°C to 85°C temperature range. Frequency ■ 1.8GHz –3dB Bandwidth ■ Fixed Gain of 10V/V (20dB) ■ –94dBc IMD3 at 70MHz (Equivalent OIP3 = 51dBm) ■ –65dBc IMD3 at 300MHz (Equivalent OIP3 = 36.5dBm) ■ 1nV/√Hz Internal Op Amp Noise ■ 2.1nV/√Hz Total Input Noise ■ 6.2dB Noise Figure ■ Differential Inputs and Outputs ■ 200Ω Input Impedance ■ 2.85V to 3.5V Supply Voltage ■ 90mA Supply Current (270mW) ■ 1V to 1.6V Output Common Mode Voltage, Adjustable ■ DC- or AC-Coupled Operation ■ Max Differential Output Swing 4.4VP-P ■ Small 16-Lead 3mm × 3mm × 0.75mm QFN Package 应用: ■ Differential ADC Driver ■ Differential Driver/Receiver ■ Single Ended to Differential Conversion ■ IF Sampling Receivers ■ SAW Filter Interfacing 方框图:  典型应用电路图(Test Circuit A):   详情请上网: http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1154,C1009,C1126,P37940,D25120 |
|||||
| 欢迎点击进入：TI德州中文网 (国内唯一针对TI应用的中文技术网站) 文章录入：admin 责任编辑：admin | |||||
| 【发表评论】【加入收藏】【告诉好友】【打印此文】【关闭窗口】 | |||||
| 最新热点 | 最新推荐 | 相关文章 | ||
| Linear LT3518 LED驱动器解决… Linear LT5570 RF功率检测方… |
| 网友评论：（只显示最新10条。评论内容只代表网友观点，与本站立场无关！） |
| | 设为首页 | 加入收藏 | 联系站长 | 友情链接 | 版权申明 | 网站公告 | 管理登录 | | |||
|
