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Product Detailed Parameters
- Description：COMPARATOR, 200NS RESPONSE TIME,
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Type：-
- Number of Elements：-
- Output Type：-
- Voltage - Supply, Single/Dual (±)：-
- Voltage - Input Offset (Max)：-
- Current - Input Bias (Max)：-
- Current - Output (Typ)：-
- Current - Quiescent (Max)：-
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-
- Package / Case：-
- Mounting Type：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The LM111LB is a high-speed analog voltage comparator manufactured by Texas Instruments, belonging to the LM111 series. It features a single channel with an open collector output type and differential input configuration. The device operates within a supply voltage range of 5 V to 36 V and consumes a typical quiescent current of 6 mA per channel. Key electrical specifications include a maximum input offset voltage of 3 mV, an input bias current of 100 nA, and a propagation delay time of 200 ns. It supports a maximum power dissipation of 500 mW and provides an output current capability of 50 mA per channel. The component is designed for through-hole installation in a TO-99-8 package and functions reliably across an operating temperature range from -55 °C to +125 °C.
Feature Summary
- High-speed general-purpose voltage comparison with a propagation delay of 200 ns
- Wide single-supply operation capability ranging from 5 V to 36 V
- Open collector output interface allowing flexible logic interfacing
- Military-grade thermal stability supporting extended temperature environments
Applications
- Precision window detector circuits
- Phase-locked loop (PLL) filter designs
- Fast transient sensing applications
- Overvoltage protection monitoring systems
Procurement Notes
Verify the specific suffix 'LB' against official Texas Instruments documentation to confirm exact pinout and military qualification status. Ensure the ordering part number matches the required package variant and temperature rating. Cross-reference datasheet revisions to validate electrical parameters before integration into final designs.
Selection Notes
Select this component when high-speed response and wide supply voltage tolerance are required in a ruggedized package. The open collector output simplifies interfacing with various logic families. Consider the TO-99-8 form factor for applications requiring hermetic sealing or high thermal performance compared to standard plastic packages.
Part Context
The LM111LB is part of the LM111 family of high-speed comparators produced by Texas Instruments. This series is engineered for demanding applications requiring fast switching speeds and precise voltage threshold detection. The LB designation typically indicates a specific package and environmental qualification within the broader LM111 product line.
Replacement Considerations
Consult official substitution guides for compatible alternatives such as the LM211 or LM311 variants. Verify that any replacement maintains the same pinout compatibility and meets the required speed and voltage specifications.
