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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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)：5mV @ 30V
- 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：-40°C ~ 105°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 LM293DT is a dual low-power voltage comparator manufactured by STMicroelectronics, housed in an 8-pin SOIC surface-mount package. It features two independent comparators with open-collector outputs, supporting a supply voltage range of 3V to 36V and operating temperatures from -40°C to 105°C. The device exhibits a typical response time of 1.3μs, a supply current of 2.5mA, and dimensions of 4.9mm length, 2.5mm width, and 1.25mm height.
Feature Summary
- Dual independent low-power voltage comparators designed for single or split power supply operation
- Open-collector output configuration compatible with TTL, DTL, ECL, MOS, and CMOS logic families
- Input common-mode voltage range includes ground potential despite single-supply operation
Applications
- Voltage monitoring systems
- Battery management circuits
- Motor control applications
- Power supply regulation
- Automation and sensing equipment
Procurement Notes
Verify the specific suffix 'DT' confirms the SOIC-8 surface-mount package variant. Confirm the manufacturer designation as STMicroelectronics to distinguish from other vendors producing similar LM293 parts. Ensure the component meets the specified industrial temperature range requirements for the intended application environment.
Selection Notes
Select this component when a dual-channel comparator with low power consumption is required. The open-collector output necessitates an external pull-up resistor for proper logic level interfacing. Consider the 1.3μs propagation delay for timing-sensitive designs and verify that the 36V maximum supply voltage aligns with the system power architecture.
Part Context
This part belongs to the LM series of low-power comparators. It shares functional similarities with the LM193, LM293, and LM393 devices. The LM293DT specifically denotes the surface-mount version, differing from through-hole packages like DIP-8 while maintaining identical electrical characteristics within the same family.
Replacement Considerations
LM393 variants may serve as direct substitutes if pin compatibility and package form factor are verified. Other manufacturers' LM293 equivalents can be used provided electrical parameters match the original specifications.
