LM293
- 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 2 | 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 |
| E-book | The Signal e-book: A compendium of blog posts on op amp design topics | 2017年 3月 28日 |
設計與開發
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模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
使用指南: PDF
參考設計
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參考設計
TIDA-00128 — 適用於斷路器 (ACB/MCCB-ETU) 的低功率、低雜訊類比前端設計
This reference design is intended for use in molded case circuit breakers (MCCB) electronic trip units. The op amp based design acts as current monitoring for over-current earth fault relays. Utilizing a low cost op amp, this design provides a pick-up (A) accuracy ±10 % and time delay (...)
參考設計
TIDA-00229 — 適用保護繼電器、MCCB 和 ACB 的自我或雙重供電電流電源參考設計
This power supply solution for Protection Relays & MCCBs handles both the current input from a Current Transformer (CT) or input from an Auxillary (Aux) source. The "self-powered" capability comes from being able to harness the power available in the grid through the CT. The flexibility of this (...)
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| PDIP (P) | 8 | 檢視選項 |
| SOIC (D) | 8 | 檢視選項 |
| VSSOP (DGK) | 8 | 檢視選項 |
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