LMH7220
- (VS = 5V TA = 25°C, Typical Values unless Otherwise Specified)
- Propagation Delay @ 100 mV Overdrive 2.9 ns
- Rise and Fall Times 0.6 ns
- Supply Voltage 2.7V to 12V
- Supply Current 6.8 mA
- Temperature Range −40°C to 125°C
- LVDS Output
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The LMH7220 is a high speed, low power comparator with an operating supply voltage range of 2.7V to 12V. The LMH7220 has a differential, LVDS output, driving 325 mV into a 100Ω symmetrical transmission line. The LMH7220 has a 2.9 ns propagation delay and 0.6 ns rise and fall times while the supply current is only 6.8 mA at 5V (load current excluded).
The LMH7220 inputs have a voltage range that extends 200 mV below ground, allowing ground sensing applications. The LMH7220 is available in the 6-Pin SOT package. This package is ideal where space is a critical item.
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| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LMH7220 High Speed Comparator with LVDS Output datasheet (Rev. E) | 2013/5/2 | |||
| Circuit design | LVDS data and clock recovery circuit with high-speed comparators | PDF | HTML | 2021/6/3 | |||
| 應用說明 | High Speed Comparators for Triggering in Oscilloscopes | 2018/2/19 | ||||
| 電子書 | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | 2017/3/28 | |||
| EVM User's guide | AN-1534 Demo Board LMH7220 High Speed LVDS Comparator (Rev. A) | 2013/5/1 | ||||
| 應用說明 | Generating Precision Clocks for Time- Interleaved ADCs | 2007/8/2 | ||||
| 應用說明 | Interface Circuits for TIA/EIA-644 (LVDS) (Rev. B) | 2002/9/16 | ||||
| 應用說明 | Interfacing Different Logic with LVDS Receivers | 2001/5/14 |
設計與開發
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設計工具
CIRCUIT060087 — 具有高速比較器的 LVDS 資料及時鐘恢復電路
LVDS 訊號復原電路用於數位系統,以擷取扭曲的時脈或資料波形。由於雜散電容、雜散電感或傳輸線路上的反射,這些時脈與數據訊號會在長走線上衰減和失真。比較器用於感測衰減和失真的輸入訊號,並轉換為全刻度數位 LVDS 輸出訊號。此電路也可用於將單端訊號轉換成 LVDS 訊號。在該情況下,動態參考電壓會連接至比較器的反相端子,以從輸入訊號中擷取共模電壓。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23-THN (DDC) | 6 | Ultra Librarian |
訂購與品質
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。