LM393
- NEW LM393B and LM2903B
- Improved specifications of B-version
- Maximum rating: up to 38V
- ESD rating (HBM): 2kV
- Low input offset: 0.37mV
- Low input bias current: 3.5nA
- Low supply-current: 200µA per comparator
- Faster response time of 1µsec
- Extended temperature range for LM393B
- Available in tiny 2 x 2mm WSON package
- B-version is drop-in replacement for LM293, LM393 and LM2903, A and V versions
- Common-mode input voltage range includes ground
- Differential input voltage range equal to maximum-rated supply voltage: ±38 V
- Low output saturation voltage
- Output compatible with TTL, MOS, and CMOS
The LM393B and LM2903B devices are the next generation versions of the industry-standard LM393 and LM2903 comparator family. These next generation B-version comparators feature lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, and improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps. The LM393B and LM2903B can drop-in replace the LM293, LM393 and LM2903, for both "A" and "V" grades.
All devices consist of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Quiescent current is independent of the supply voltage.
技術文件
| 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 | LM393B, LM2903B, LM193, LM293, LM393 and LM2903 Dual Comparators datasheet (Rev. AH) | PDF | HTML | 2025/4/30 | ||
| 應用說明 | Comparator Output Types (Rev. A) | PDF | HTML | 2025/6/2 | |||
| 應用說明 | Application Design Guidelines for LM339, LM393, TL331 Family Comparators Including the New B-versions (Rev. F) | PDF | HTML | 2024/12/12 | |||
| 技術文章 | Solving top comparator challenges: Negative inputs and phase reversal | PDF | HTML | 2022/1/18 | |||
| 技術文章 | Solving top comparator challenges: Violating input common-mode range | PDF | HTML | 2021/11/23 | |||
| 電子書 | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | 2017/3/28 | |||
| 應用說明 | Designing Overcurrent protection for TPL7407L Peripheral Driver | 2014/11/5 |
設計與開發
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AMP-PDK-EVM 套件支援五種最熱門的業界標準封裝,包括:
- D (SOIC-8 和 SOIC-14)
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- DGK (VSSOP-8)
- DBV (SOT23-5 和 SOT23-6)
- DCK (SC70-5 和 SC70-6)
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOP (PS) | 8 | Ultra Librarian |
| VSSOP (DGK) | 8 | Ultra Librarian |
| SOIC (D) | 8 | Ultra Librarian |
| TSSOP (PW) | 8 | Ultra Librarian |
| PDIP (P) | 8 | Ultra Librarian |
訂購與品質
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