LMH3401
- Excellent Single-Ended to Differential Conversion Performance from DC to 2 GHz
- 7-GHz, –3-dB Bandwidth
- Excellent HD2 and HD3 to 2 GHz:
- –96 (HD2), –102 (HD3) at 10 MHz
- –79 (HD2), –77 (HD3) at 500 MHz
- –64 (HD2), –72 (HD3) at 1 GHz
- –55 (HD2), –40 (HD3) at 2 GHz
- Best in Class OIP3 Performance to 2 GHz:
- 45 dBm at 200 MHz
- 33 dBm at 1 GHz
- 24 dBm at 2 GHz
- Fixed Single-Ended to Differential Voltage Gain: 16 dB
- Noise Figure: 9 dB at 200 MHz (RS = 50 Ω)
- Slew Rate: 18,000 V/µs
- Supports Single-Supply or Split-Supply Operation
- Powered-Down Feature
- Supply Current: 55 mA
The LMH3401 is a very high-performance, differential amplifier optimized for radio frequency (RF), intermediate frequency (IF), or high-speed, time-domain applications. This device is ideal for dc- or ac-coupled applications that require a single-ended to differential conversion when driving an analog-to-digital converter (ADC). The LMH3401 generates very low levels of second-order and third-order distortion when operating in single-ended-input to differential-output or differential-input to differential-output mode.
The on-chip resistors simplify printed circuit board (PCB) implementation and provide the highest performance over the usable bandwidth of 2 GHz. This performance makes the LMH3401 ideal for applications such as test and measurement, broadband communications, and high-speed data acquisition. A common-mode reference input pin is provided to align the amplifier output common-mode with the ADC input requirements. Use this device with power supplies between 3.3 V and 5.0 V; dual-supply operation is supported when required by the application.
This level of performance is achieved at a very low power level of 275 mW when a 5.0-V supply is used. A power-down feature is also available for power savings. The LMH3401 is fabricated in Texas Instruments' advanced complementary BiCMOS process and is available in a space-saving, 14-lead UQFN package with a specified operating temperature range of –40°C to 85°C.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | LMH3401 7-GHz, Ultra-Wideband, Fixed-Gain, Fully-Differential Amplifier datasheet (Rev. A) | PDF | HTML | 2014年 12月 4日 |
| E-book | The Signal e-book: A compendium of blog posts on op amp design topics | 2017年 3月 28日 | ||
| Application note | ADC32RF45: Amplifier to ADC Interface (Rev. A) | 2016年 9月 7日 |
設計與開發
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LMH3401EVM — LMH3401 評估模組
LMH3401EVM 是一款評估模組，適用於採用 14 引腳高性能 RF 封裝的單 LMH3401 放大器。此評估模組可快速且輕鬆展示放大器的功能性和多元用途。EVM 隨時可透過板載連接器來連接電源、訊號源和測試儀器。EVM 已配置為可透過其輸入與輸出，輕鬆連接常見的 50-Ω 實驗室設備。放大器配置為單端輸入，增益為 16dB (6.31V/V)。此電路板具有差動輸出，每個放大器輸出各一個。其可輕鬆地配置為差動輸入，以及單電源供電或雙電源供電操作。
TSW54J60EVM — 400MHz 輸入頻寬數位器：雙路 16 位元、1 GSPS ADC 和寬頻固定或可變增益放大器
TSW54J60EVM 評估模組 (EVM) 可用來評估德州儀器的 ADS54J60、LMH3401、LMH6401 及 LMK04828 裝置。ADS54J60 是一款低功耗、16 位元、1-GSPS 類比轉數位轉換器 (ADC)，擁有具備 JESD204B 介面的緩衝類比輸入和輸出。LMH3401 是超寬頻、固定增益 (16dB) 的全差動放大器。LMH6401 是超寬頻數位可變增益放大器，最大增益為 26dB。這兩個放大器都能進行 AC 或 DC 耦合。
EVM 在兩條路徑上都有 400MHz 低通濾波器，可進行訊號調節。LMK04828 為完整的 JESD204B 子類 1 (...)
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TIDA-00823 — 具有 AC 與 DC 耦合固定增益放大器的 16 位元 1 GSPS 數位器參考設計
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| UQFN (RMS) | 14 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。