TIDA-00092
將 LMH6554 最佳化以驅動高速 ADC
TIDA-00092
概覽
This reference design shows the ability of the high-speed amplifier, LMH6554, to perform single-ended to differential conversion to drive high-speed analog-to-digital converters (ADCs) while maintaining excellent noise and distortion performance. Performance versus input frequency is shown for both AC and DC coupled applications while interfaced to the ADS4449 quad, 250-MSPS, 14-bit ADC. Various options for common-mode voltages, power supplies, and interfaces are discussed and measured to meet the requirements of a variety of applications. Anti-aliasing filter examples are shown along with the performance improvements that they provide.
特點
- High-speed single-ended to differential conversion while maintain excellent performance
- System performance results for LMH6554 driving ADS4449
- SFDR > 82 dBFs, SNR > 71 dBFS in first Nyquist zone
- SFDR > 80 dBFs, SNR > 68 dBFS in second Nyquist zone
- Examples of both AC and DC coupled interfaces
- Demonstrates anti-aliasing filter design and performance gains
- Amplifier power supply design considerations for best performance are discussed
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The design resource accessed as www.ti.com/lit/zip/tidc420 or www.ti.com/lit/xx/tidc420/tidc420.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDC420. Please update any bookmarks accordingly.
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| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 設計指南 | Optimizing the LMH6554 to Drive High-Speed ADCs Design Guide | 2014/3/24 |