LM193JGB

Overview

The LM193JGB is a dual differential comparator from the LM193-MIL series, designed for operation across a wide supply voltage range of 2 V to 36 V. It features low supply current drain of 0.4 mA per comparator and low input bias current of 25 nA typical. The device supports common-mode input voltages including ground and offers open-drain outputs compatible with TTL, MOS, and CMOS logic families. Characterized for military-grade reliability, it operates within an extended temperature range of -55°C to +125°C.

Feature Summary

• Dual independent comparators optimized for single or dual power supply configurations
• Open-drain output architecture enabling wired-AND functionality and flexible logic level interfacing
• Military-grade qualification ensuring parameter testing compliance under MIL-PRF-38535 standards
• Extended thermal stability supporting reliable performance in harsh environmental conditions

Applications

• Chemical or gas sensor signal processing
• Desktop PC system monitoring
• AC induction motor control circuits
• Precision weigh scale instrumentation

Procurement Notes

Verify that the specific ordering suffix matches the required package type and material specifications. Confirm compliance with relevant military standards if applicable to your design requirements. Ensure proper handling procedures are followed due to limited built-in ESD protection mechanisms inherent to the component structure.

Selection Notes

Select this component when high voltage tolerance and wide operating temperature ranges are critical. The open-drain output requires external pull-up resistors to define logic high levels. Consider the input common-mode voltage limitations relative to the supply voltage when designing reference circuits.

Part Context

This part belongs to the LM193-MIL family, which includes variants like LM193, LM293, and LM393. These devices share core comparator functionalities but differ in temperature ratings and manufacturing standards. The JG suffix specifically denotes the ceramic dual in-line package configuration suitable for through-hole mounting.

Replacement Considerations

Direct substitutes include other parts within the LM193-MIL family such as LM193FKB or LM193JG. Verify pin compatibility and electrical characteristics before substitution. Ensure replacement parts meet the same military qualification standards if required by the application.