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The LM111 is a voltage comparator that has input currents nearly a thousand times lower than devices such as the LM106 or LM710. It is also designed to operate over a wider range of supply voltages: from standard ±15V op amp supplies down to the single 5V supply used for IC logic. The output is compatible with RTL, DTL and TTL as well as MOS circuits. Further, it can drive lamps or relays, switching voltages up to 50V at currents as high as 50 mA.
Both the inputs and the output of the LM111 can be isolated from system ground, and the output can drive loads referred to ground, the positive supply or the negative supply. Offset balancing and strobe capability are provided and outputs can be wire OR'ed. Although slower than the LM106 and LM710 (200 ns response time vs 40 ns) the device is also much less prone to spurious oscillations. The LM111 has the same pin configuration as the LM106 and LM710.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | LM111QML Voltage Comparator datasheet (Rev. C) | Mar 26, 2013 | |
| * | Radiation & reliability report | LM111xRLQMLV ELDRS Characterization Report | May 9, 2012 | |
| * | SMD | LM111QML-SP SMD 5962L0052401VHA | Jun 21, 2016 | |
| Selection guide | TI Space Products (Rev. L) | Mar 27, 2026 | ||
| Application brief | DLA Approved Optimizations for QML Products (Rev. C) | PDF | HTML | Jun 17, 2025 | |
| Application note | Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B) | PDF | HTML | Jun 10, 2025 | |
| More literature | TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B) | Feb 20, 2025 | ||
| Application note | Single-Event Effects Confidence Interval Calculations (Rev. A) | PDF | HTML | Oct 19, 2022 | |
| Application brief | Analog Front-End Design With Texas Instruments’ Tooling Landscape | PDF | HTML | Mar 7, 2022 | |
| E-book | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | Mar 28, 2017 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| CFP (NAC) | 10 | Ultra Librarian |
| CFP (NAD) | 10 | Ultra Librarian |
| TO-CAN (LMC) | 8 | Ultra Librarian |
| CDIP (NAB) | 8 | Ultra Librarian |
| DIESALE (Y) | — | Ultra Librarian |
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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