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Product Detailed Parameters
- Description：VOLTAGE COMPARATOR 8-TO-99 -55 T
- Series：LM111
- Mfr：Texas Instruments
- Package：Tray
- Type：General Purpose
- Number of Elements：1
- Output Type：Open-Collector
- Voltage - Supply, Single/Dual (±)：5V ~ 30V, ±2.5V ~ 15V
- Voltage - Input Offset (Max)：3mV @ ±15V
- Current - Input Bias (Max)：0.1µA @ ±15V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：5mA, 6mA
- CMRR, PSRR (Typ)：80dB CMRR
- Propagation Delay (Max)：200ns (Typ)
- Hysteresis：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：TO-99-8 Metal Can
- Mounting Type：Through Hole
- Supplier Device Package：TO-99-8
- Grade：-
- Qualification：-
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Overview
The LM111H/883 is a high-performance voltage comparator manufactured by Texas Instruments, designed for demanding applications requiring military-grade reliability. It features a single channel with an open-collector output and differential input configuration. The device operates within a supply voltage range of 5 V to 36 V and consumes a typical operating 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 of 200 ns. It supports an output sink current of 50 mA and functions reliably across an extended temperature range from -55 °C to +125 °C.
Feature Summary
- Military-grade construction ensuring high reliability in harsh environments
- High-speed response capability with low propagation delay
- Wide common-mode voltage range compatible with various logic families
- Differential input structure providing precise signal comparison
Applications
- Military aerospace systems requiring qualified components
- High-reliability industrial control circuits
- Precision sensing and measurement instrumentation
- Radar and communication system signal processing
Procurement Notes
Verify the specific suffix /883 indicates compliance with MIL-PRF-38534 or similar military standards. Confirm that the ordering information matches the exact die revision and screening level required for your application. Ensure the datasheet version aligns with the manufacturing date code to avoid discrepancies in mechanical dimensions or electrical limits.
Selection Notes
Select this component when military qualification is mandatory for the project. Consider the TO-99 package constraints regarding thermal management and pinout compatibility. Evaluate the 50 mA output drive capability against load requirements. Compare performance metrics such as offset voltage and bias current against other comparators if cost reduction is a priority without sacrificing reliability.
Part Context
The LM111 series represents a family of general-purpose voltage comparators known for robust performance. The LM111H/883 variant specifically targets defense and aerospace sectors where standard commercial parts are insufficient. It shares functional similarities with the LM111N but offers enhanced durability and stricter parameter controls defined by military specifications.
Replacement Considerations
LM111H/NOPB
FAQ
What is the maximum supply voltage for the LM111H/883?
The maximum supply voltage is 36 V.
Does the LM111H/883 support shutdown functionality?
Yes, the device includes a shutdown feature to minimize power consumption when not in use.
