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Product Detailed Parameters
- Description：IC COMPARATOR 2 DIFF 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector, Open-Drain, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：2mV @ 30V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：20mA
- Current - Quiescent (Max)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-25°C ~ 85°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The LM293AD is a dual differential voltage comparator manufactured by Texas Instruments, designed for single-supply operation across a wide voltage range. It features two independent precision comparators with open-collector outputs compatible with TTL and CMOS logic. The device operates on supply voltages from 2 V to 30 V, drawing a typical quiescent current of 1 mA. Key electrical characteristics include a response time of 1.3 µs, an input offset voltage of 2 mV, and an input bias current of 250 nA. It supports a maximum output current of 6 mA per channel and functions within a temperature range of -25°C to +85°C. The component is housed in an SOIC-8 surface-mount package.
Feature Summary
- Dual differential voltage comparators configured for single-supply operation
- Open-collector outputs ensuring compatibility with various logic families
- Wide operating supply voltage range supporting low-voltage applications
- Low input bias current and offset voltage for precise signal comparison
Applications
- Voltage monitoring systems
- Battery management circuits
- Motor control applications
- Power supply regulation
Procurement Notes
Verify the specific suffix 'ADR' against official datasheets to confirm reel packaging specifications and tape-and-reel dimensions. Ensure the order matches the required industrial temperature grade and SOIC-8 pinout configuration. Cross-reference RoHS compliance status directly with manufacturer documentation prior to procurement.
Selection Notes
Select this component when dual independent comparators are required in a compact surface-mount format. It is suitable for designs needing open-collector outputs to interface with different logic levels. Consider the 1.3 µs propagation delay for timing-sensitive applications. Verify that the 30 V maximum supply voltage aligns with the system power rails.
Part Context
The LM293AD belongs to the LMx93/LM2903 series of dual voltage comparers. This family is characterized by low power consumption and wide supply voltage capabilities. The LM293AD specifically denotes the industrial temperature variant in a small-outline integrated circuit package, distinct from through-hole or automotive-grade alternatives.
Replacement Considerations
LM293DR: Pin-compatible alternative in SOIC-8 package. LM293P: Through-hole equivalent in PDIP-8 package. LM2903: Industrial grade variant with similar electrical characteristics.
