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LM293MDREP

IC COMPARATOR 2CH 8-SOIC

Part Number: LM293MDREP

Manufacturer: Texas Instruments

Category: Comparators

Package: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: LM293MDREP.pdf

Description: IC COMPARATOR 2CH 8-SOIC

Select Quantity Stock: 8,970

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PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

LM293MDREP Enhanced Product Dual Differential Comparator

A comprehensive technical overview of the LM293MDREP, an Enhanced Product (EP) dual differential comparator from Texas Instruments featuring two independent comparators, 36 V supply voltage, 1.3 µs response time, and extended temperature range of –55°C to 125°C. Covers device function, core features, electrical specifications, 8-lead SOIC package, pin configuration, typical applications, and replacement selection guidance.

Texas Instruments 8-SOIC 2V to 36V

Device Classification Dual Differential Comparator

Part Number: LM293MDREP

Mounting Type: Surface Mount

Operating Temperature Range: -55°C to +125°C

PRODUCT OVERVIEW

What Is the LM293MDREP?

LM293MDREP is an Enhanced Product (EP) dual differential comparator from Texas Instruments, part of the LM293-EP family. The device consists of two independent voltage comparators designed to operate from a single power supply over a wide range of voltages. Operation from dual supplies is also possible as long as the difference between the two supplies is 2 V to 36 V[reference:0].

The LM293MDREP operates with a supply voltage range of 2 V to 36 V single supply, or ±1 V to ±18 V dual supply[reference:1]. It features a typical response time of 1.3 µs, low input bias current of 25 nA typical, and low input offset voltage of 2 mV typical[reference:2]. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships[reference:3].

The EP designation provides support for defense, aerospace, and medical applications with controlled baseline, extended product life cycle, extended product-change notification, product traceability, and qualification pedigree[reference:4][reference:5]. The "M" in the part number indicates extended ("Military") temperature range of –55°C to 125°C, "D" indicates the SOIC package, and "R" indicates reel shipping option[reference:6]. The LM293MDREP is offered in an 8-lead SOIC (D) package and is rated for operation from –55°C to +125°C[reference:7][reference:8].

Dual Differential Comparator Two independent comparators with open-collector outputs for wired-AND logic.

Wide Supply Range 2 V to 36 V single supply or ±1 V to ±18 V dual supply.

Enhanced Product (EP) Supports defense, aerospace, and medical applications with –55°C to 125°C temperature range and qualification pedigree.

DEVICE HIGHLIGHTS

Key Features and Benefits of LM293MDREP

Dual Independent Comparators

Two independent voltage comparators in a single package with open-collector outputs for flexible wired-AND logic implementation[reference:9].

Wide Supply Voltage Range

Operates from 2 V to 36 V single supply or ±1 V to ±18 V dual supply, accommodating a broad range of applications[reference:10].

Fast Response Time

Typical response time of 1.3 µs provides fast comparator operation for precision applications[reference:11].

Low Power Consumption

Low supply-current drain independent of supply voltage at 0.4 mA typical per comparator[reference:12].

Enhanced Product (EP) Qualification

Supports defense, aerospace, and medical applications with controlled baseline, extended life cycle, and qualification pedigree[reference:13].

8-Lead SOIC Package

Available in an industry-standard 8-lead SOIC (D) package with NiPdAu lead finish and MSL Level-1 rating[reference:14].

REFERENCE DATA

Technical Specifications for LM293MDREP

Part Number	LM293MDREP	Manufacturer	Texas Instruments
Device Type	Dual Differential Comparator	Number of Channels	2
Output Type	Open-Collector, Open-Drain, Rail-to-Rail	Output Compatibility	TTL, MOS, CMOS[reference:15]
Single Supply Voltage Range	2 V to 36 V[reference:16]	Dual Supply Voltage Range	±1 V to ±18 V[reference:17]
Response Time (Typical)	1.3 µs[reference:18][reference:19]	Output Current (Typical)	20 mA[reference:20]
Output Current per Channel	6 mA[reference:21]	Input Bias Current (Typical)	25 nA[reference:22]
Input Bias Current (Max)	0.25 µA @ 5V[reference:23]	Input Offset Voltage (Typical)	2 mV[reference:24]
Input Offset Voltage (Max)	5 mV @ 30V[reference:25]	Quiescent Current (Max)	2.5 mA[reference:26]
Supply Current (Typical per Comparator)	0.4 mA[reference:27]	Common-Mode Input Voltage Range	Includes Ground[reference:28]
Differential Input Voltage Range	±36 V (Max-Rated Supply)[reference:29]	Voltage Gain	106.02 dB[reference:30]
Package / Case	8-SOIC (0.154", 3.90mm Width)[reference:31]	Supplier Device Package	8-SOIC[reference:32]
Package Body Size	4.90mm × 3.90mm	Mounting Type	Surface Mount[reference:33]
Operating Temperature (EP)	-55°C to +125°C[reference:34][reference:35]	Moisture Sensitivity Level	Level-1-260C-UNLIM[reference:36][reference:37]
RoHS	ROHS3 Compliant[reference:38]	REACH Status	REACH Unaffected[reference:39]
Lead Finish / Ball Material	NiPdAu[reference:40]	US ECCN	EAR99[reference:41][reference:42]
Packaging	Tape & Reel (2,500 per Reel)[reference:43][reference:44]	Reel Diameter	330 mm[reference:45]
Device Marking	LM293M	Product Status	Active[reference:46]

Electrical values shown above are reference values. Test conditions, limits, and guaranteed performance should always be confirmed from the current official manufacturer datasheet before design or production use. Enhanced Product specifications apply over the temperature range of –55°C to 125°C.

DESIGN REFERENCE

Circuit Considerations for LM293MDREP

Power Supply & Decoupling

The LM293MDREP offers flexible power supply options:

Single Supply: 2 V to 36 V operation for systems with a single positive rail[reference:47]
Dual Supply: ±1 V to ±18 V for systems requiring bipolar operation[reference:48]
Supply Current: Low supply-current drain independent of supply voltage at 0.4 mA typical per comparator[reference:49]
Decoupling: Place a ceramic capacitor (0.1 µF) close to the VCC pin to minimize supply noise
Common-Mode Range: Input common-mode voltage range includes ground[reference:50]

PCB and Signal Integrity Guidance

Comparator performance depends on layout and signal routing:

Open-Collector Outputs: Outputs require external pull-up resistors to VCC or other positive voltage[reference:51]
Wired-AND Logic: Outputs can be connected to other open-collector outputs to achieve wired-AND relationships[reference:52]
Differential Input Voltage: Differential input voltage range equals maximum-rated supply voltage at ±36 V[reference:53]
Ground Plane: Use a solid ground plane to minimize noise and ensure low-inductance return paths
PCB Layout: Keep input traces short and away from high-current output traces to avoid coupling
Verify the recommended PCB footprint from the official datasheet prior to production

8-LEAD SOIC (4.90mm × 3.90mm)

Pin Configuration Reference for LM293MDREP

LM293M

SOIC TOP VIEW

Confirm package orientation and pin numbering against the official package drawing before PCB layout. The SOIC package has 8 pins with a 4.90mm × 3.90mm body size. Device marking for the LM293MDREP is "LM293M".

1 1OUT Output of Comparator 1

2 1IN- Inverting Input of Comparator 1

3 1IN+ Noninverting Input of Comparator 1

4 V- Negative Power Supply (GND for single supply)

5 2IN+ Noninverting Input of Comparator 2

6 2IN- Inverting Input of Comparator 2

7 2OUT Output of Comparator 2

8 V+ Positive Power Supply (2 V to 36 V single; up to V+–V- = 36 V max)

APPLICATION AREAS

Typical Applications for LM293MDREP

Defense & Aerospace Systems

Enhanced Product (EP) qualification with controlled baseline and –55°C to 125°C temperature range supports military and aerospace applications[reference:54].

Power Supply Monitoring

Compares voltage levels for undervoltage and overvoltage detection in power supply supervision circuits.

Window Comparators

Dual comparators can be configured as window comparators for voltage range detection.

Zero-Crossing Detectors

Fast 1.3 µs response time enables zero-crossing detection in AC signal processing applications[reference:55].

Industrial Control & Automation

Wide supply range and robust temperature performance suit industrial control and automation systems.

Medical Instrumentation

EP qualification and wide temperature range support medical diagnostic equipment requiring high reliability.

REPLACEMENT GUIDANCE

Selecting an Alternative for LM293MDREP

A replacement for the LM293MDREP should not be selected solely by product category. The electrical characteristics, package, and pin configuration must be evaluated against the specific circuit requirements. The following alternatives are documented in the official Texas Instruments datasheet and product pages.

Dual differential comparator with 2 channels

Supply voltage: 2 V to 36 V single, ±1 V to ±18 V dual

Response time: 1.3 µs typical

Open-collector outputs with wired-AND capability

Package: 8-SOIC (D)

Temperature range: –55°C to 125°C (EP)

Low input bias current: 25 nA typical

Low supply current: 0.4 mA per comparator

Packaging alternatives (same package, different carrier):

Part Number	Package	Carrier	SPQ	Temperature Range
LM293MDREP	8-SOIC (D)	Tape & Reel	2,500[reference:56]	-55°C to 125°C
LM293MDREP (Cut Tape)	8-SOIC (D)	Cut Tape (CT)	Variable[reference:57]	-55°C to 125°C

The LM293MDREP is the Enhanced Product (EP) version in 8-SOIC (D) package with standard tape-and-reel packaging (2,500 units per reel)[reference:58]. Cut Tape (CT) and Digi-Reel options are also available for smaller quantity orders[reference:59]. The LM293-EP series is characterized for operation from –55°C to 125°C[reference:60]. For other temperature grade or packaging options, refer to the LM293 family product pages. Select based on temperature requirements and packaging needs.

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MANUFACTURER INFORMATION

Texas Instruments

The LM293-EP (LM293MDREP) belongs to the LM293 family of dual differential comparators from Texas Instruments. The device consists of two independent voltage comparators designed to operate from a single power supply over a wide range of voltages[reference:61]. The Enhanced Product (EP) designation provides support for defense, aerospace, and medical applications with controlled baseline, extended product life cycle, extended product-change notification, product traceability, and qualification pedigree[reference:62][reference:63]. The LM293-EP is characterized for operation from –55°C to 125°C[reference:64] and is available in an 8-lead SOIC (D) package.

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Technical Information Disclaimer

This technical guide is provided for product identification and preliminary reference only. Electrical limits, package dimensions, pin configuration, product status, and application suitability must be verified using current official manufacturer documentation before design, procurement, or production.

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Specifications

Product Attribute: Attribute Value

Part Number: LM293MDREP

Manufacturer: Texas Instruments

Package: 8-SOIC (0.154", 3.90mm Width)

Package/Case: 8-SOIC (0.154", 3.90mm Width)

Series: -

Packaging: Tape & Reel (TR)

Product Status: Active

Type: General Purpose

Number of Elements: 2

Output Type: Open-Collector, Open-Drain, Rail-to-Rail

Voltage - Supply, Single/Dual (±): 2V ~ 36V, ±1V ~ 18V

: 5mV @ 30V

Voltage - Input Offset (Max): 0.25µA @ 5V

Current - Input Bias (Max): 20mA

Current - Output (Typ): 2.5mA

Current - Quiescent (Max): -

CMRR, PSRR (Typ): -

Propagation Delay (Max): -

Hysteresis: -55°C ~ 125°C

Operating Temperature: -

Grade: -

Qualification: Surface Mount

: 8-SOIC

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LM293MDREP Procurement and Technical Support

LM293MDREP is manufactured by Texas Instruments. This page provides purchasing information including manufacturer, category, package, datasheet, stock reference, price reference and product specifications.

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Part Number: LM293MDREP

Manufacturer: Texas Instruments

Package: 8-SOIC (0.154", 3.90mm Width)

Category: Comparators

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