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Product Detailed Parameters
- Description：LM293 DUAL DIFFERENTIAL COMPARAT
- 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 LM293PE4 is a dual differential voltage comparator from Texas Instruments, housed in an 8-pin PDIP package. It operates on a single supply of 2V to 30V or split supplies of ±1V to ±15V. Key electrical parameters include a typical response time of 300ns, a maximum supply current of 500µA, and an output sink current of 6mA per channel. The input offset voltage is typically 5mV, with an input bias current of 250nA. It functions within a temperature range of -25°C to +85°C.
Feature Summary
- Features two independent comparators with open-collector outputs compatible with TTL and CMOS logic families.
- Supports wide single-supply voltage ranges or dual power supplies for flexible system integration.
- Input common-mode voltage range includes ground potential even when operated from a single supply.
- Designed for low power consumption with supply current independent of the supply voltage.
Applications
- Voltage monitoring systems
- Battery management circuits
- Motor control applications
Procurement Notes
Verify the component authenticity by checking the manufacturer's marking code against official datasheets. Confirm the specific suffix 'E4' aligns with lead-free packaging requirements. Ensure the PDIP-8 package matches your PCB footprint design. Cross-reference the revision level with your bill of materials to guarantee compatibility with existing assembly processes.
Selection Notes
Select this component for designs requiring dual comparators with low quiescent current. It is suitable for applications needing ground-referenced inputs on single-supply systems. Consider the open-collector output requirement for external pull-up resistors. Evaluate the 300ns propagation delay against your signal speed requirements.
Part Context
This device belongs to the LMx93/LM2903 series of dual voltage comparators. It shares functional similarities with the LM193, LM293, and LM393, differing primarily in temperature ratings and manufacturing revisions. The part is designed for industrial-grade performance in standard through-hole applications.
Replacement Considerations
LM293P serves as a direct pin-compatible alternative within the same series. LM393 offers similar functionality with potentially different temperature specifications. Verify that any substitute maintains the required open-collector output configuration and supply voltage limits.
