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Product Detailed Parameters
- Description：IC COMPARATOR 2 DIFF 8DIP
- Series：-
- Mfr：onsemi
- Package：Tube
- Type：General Purpose
- Number of Elements：2
- Output Type：-
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：2mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：18mA @ 5V
- Current - Quiescent (Max)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：8-DIP (0.300", 7.62mm)
- Mounting Type：Through Hole
- Supplier Device Package：8-DIP
- Grade：-
- Qualification：-
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Overview
The LM393AN is a dual independent voltage comparator designed for single or split power supply operation. It features a wide single-supply range of 2V to 36V and a dual-supply range of ±1V to ±18V. The device allows comparison of voltages near ground potential with an input common-mode range including ground. Key electrical characteristics include low current drain, typically 800µA, low input bias current of 25nA typical, and low offset voltage of ±1mV typical. The output is compatible with DTL, ECL, TTL, MOS, and CMOS logic levels.
Feature Summary
- Dual independent comparators suitable for single or split supply operation
- Wide operating voltage range supporting both single and dual power sources
- Input common-mode voltage range includes ground level
- Output compatibility with various logic families including TTL and CMOS
Applications
- Automatic portable calibrators for tipping bucket rain gauges
- Analog-to-digital converter circuits
- Voltage detection and sensing applications
Procurement Notes
Verify the manufacturer source, as Fairchild Semiconductor was acquired by onsemi. Confirm the package type matches the required PCB footprint. Ensure the specific lot date code meets project requirements. Check for RoHS compliance status if environmental regulations apply. Validate that the open-collector output configuration aligns with the system design needs.
Selection Notes
Select this component when dual comparators are needed in a single package. It is suitable for applications requiring ground-referenced inputs. Consider the low power consumption for battery-operated systems. Verify that the open-collector output can be properly pulled up to the desired logic voltage level.
Part Context
The LM393 series consists of two independent precision voltage comparators. The LM393AN variant specifically denotes the DIP-8 package version. This family is widely used in consumer, automotive, and industrial electronics due to its versatility and low cost. It serves as a standard solution for basic voltage threshold detection tasks.
Replacement Considerations
LM2903 offers extended temperature range options. LM193 provides military-grade specifications. TLV1701 supports rail-to-rail input and output capabilities.
