LM2903
- NEW LM393B and LM2903B
- Improved specifications of B-version
- Maximum rating: up to 38 V
- ESD rating (HBM): 2k V
- Low input offset: 0.37 mV
- Low input bias current: 3.5 nA
- Low supply-current: 200 µA per comparator
- Faster response time of 1 µsec
- 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.
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檢視所有 6 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM393B, LM2903B, LM193, LM293, LM393 and LM2903 Dual Comparators datasheet (Rev. AF) | PDF | HTML | 2023年 8月 14日 |
| Application note | Application Design Guidelines for LM339, LM393, TL331 Family Comparators Including the New B-versions (Rev. E) | PDF | HTML | 2024年 6月 6日 | |
| Technical article | Solving top comparator challenges: Chatter | PDF | HTML | 2021年 10月 29日 | |
| Application brief | How to Implement Comparators for Improving Performance of Rotary Encoders in Ind | 2019年 7月 3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 | Designing Overcurrent protection for TPL7407L Peripheral Driver | 2014年 11月 5日 |
設計與開發
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開發板
AMP-PDK-EVM — 放大器性能開發套件評估模組
放大器性能開發套件 (PDK) 是一款評估模組 (EVM) 套件，可測試通用運算放大器 (op amp) 參數，並與大多數運算放大器和比較器相容。EVM 套件提供主板和多個插槽式子卡選項，可滿足封裝需求，使工程師能夠快速評估和驗證裝置性能。
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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模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
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使用指南: PDF
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| PDIP (P) | 8 | Ultra Librarian |
| SOIC (D) | 8 | Ultra Librarian |
| SOP (PS) | 8 | Ultra Librarian |
| TSSOP (PW) | 8 | Ultra Librarian |
| VSSOP (DGK) | 8 | Ultra Librarian |
訂購與品質
內含資訊：
- 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
- 進行中持續性的可靠性監測
內含資訊：
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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。