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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR 8CDIP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：General Purpose
- Number of Elements：1
- Output Type：DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL
- Voltage - Supply, Single/Dual (±)：5V ~ 36V, ±2.5V ~ 18V
- Voltage - Input Offset (Max)：3mV @ ±15V
- Current - Input Bias (Max)：0.1µA @ ±15V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：6mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-55°C ~ 125°C
- Package / Case：8-CDIP (0.300", 7.62mm)
- Mounting Type：Through Hole
- Supplier Device Package：8-CDIP
- Grade：-
- Qualification：-
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Overview
The LM111J-8 is a single-channel voltage comparator manufactured by Texas Instruments, designed for general-purpose applications. It features an open-collector output and operates within a supply voltage range of 5V to 36V. The device exhibits a typical response time of 165 microseconds and supports a maximum input bias current of 100 nA. It is housed in an 8-pin CDIP package with through-hole mounting. The component functions reliably across an extended temperature range from -55°C to 125°C, making it suitable for industrial environments.
Feature Summary
- Single-channel configuration for dedicated signal comparison tasks
- Open-collector output capability for flexible interfacing
- Extended operating temperature range for harsh conditions
Applications
- Industrial process control systems
- Over-voltage protection circuits
- Threshold detection logic
Procurement Notes
Verify the specific suffix J-8 against official datasheets to confirm pinout and package dimensions. Ensure compatibility with existing PCB footprints before integration. Cross-reference electrical parameters such as propagation delay and offset voltage with current design requirements. Confirm that the open-collector output aligns with downstream circuit pull-up configurations.
Selection Notes
Select this component when a single high-speed comparator with wide supply voltage tolerance is required. The CDIP package suits through-hole assembly processes. Consider the 165 microsecond response time for timing-critical applications. Evaluate the -55°C to 125°C range against environmental constraints. Verify that the open-collector output meets interface needs without additional level shifting.
Part Context
The LM111 series belongs to Texas Instruments' family of precision voltage comparators. The LM111J-8 variant specifically denotes the military-grade or high-reliability version in an 8-pin ceramic dual in-line package. This series is widely used in analog signal processing where fast switching and high input impedance are necessary. It serves as a fundamental building block for threshold detection and waveform generation.
Replacement Considerations
LM111J/N is a direct equivalent part number within the same product family.
