LM293DR2G Equivalent & Substitute Parts

Part Overview

The LM293DR2G is a dual general-purpose comparator manufactured by onsemi, housed in an 8-SOIC surface-mount package. This device features open-collector and open-drain output configurations with rail-to-rail capability, operating across a wide supply voltage range of 2V to 36V (single supply) or ±1V to ±18V (dual supply). The part is currently active in production with 305,300 units in stock. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific performance requirements.

Key Parameters

Parameter	Value
Manufacturer	onsemi
Part Number	LM293DR2G
Category	Linear Comparator
Number of Elements	2
Output Type	Open-Collector, Open-Drain, Rail-to-Rail
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Voltage - Supply, Single/Dual (±)	2V ~ 36V, ±1V ~ 18V
Voltage - Input Offset (Max)	5mV @ 30V
Current - Input Bias (Max)	0.25µA @ 5V
Current - Output (Typ)	16mA @ 5V
Current - Quiescent (Max)	2.5mA
Operating Temperature	-25°C ~ 85°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the LM293DR2G are classified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Package type: 8-SOIC surface-mount form factor (0.154", 3.90mm width)
Output configuration: Open-collector and/or open-drain with rail-to-rail capability
Supply voltage range: 2V ~ 36V (single) or ±1V ~ 18V (dual)
Input offset voltage: Maximum 5mV to 8mV
Input bias current: Maximum 0.25µA to 0.4µA
Output current capability: 16mA to 20mA
Quiescent current: 1mA to 2.5mA
Number of comparator elements: 2
Operating temperature range: Minimum -55°C to -25°C; maximum 85°C to 125°C
RoHS3 compliance and MSL rating

Direct substitutes maintain identical or superior electrical performance within the specified parameters. Upgrade substitutes offer extended temperature ranges or improved specifications. Similar substitutes provide functional equivalence with minor parameter variations acceptable for general-purpose applications.

Parameter Comparison

Part Number	Manufacturer	Output Type	Supply Voltage	Input Offset (Max)	Input Bias (Max)	Output Current (Typ)	Quiescent Current (Max)	Operating Temp	Package	Inventory
LM293DR2G	onsemi	Open-Collector, Open-Drain, Rail-to-Rail	2V~36V, ±1V~18V	5mV @ 30V	0.25µA @ 5V	16mA @ 5V	2.5mA	-25°C ~ 85°C	8-SOIC	305,300
LM293DRG3	Texas Instruments	Open-Collector, Open-Drain, Rail-to-Rail	2V~36V, ±1V~18V	5mV @ 30V	0.25µA @ 5V	20mA	2.5mA	-25°C ~ 85°C	8-SOIC	77,983
LM193DT	STMicroelectronics	Open-Collector, Rail-to-Rail	2V~36V, ±1V~18V	5mV @ 30V	0.25µA @ 5V	18mA @ 5V	2.5mA	-55°C ~ 125°C	8-SOIC	78,081
LM293DT	STMicroelectronics	Open-Collector, Open-Drain, Rail-to-Rail	2V~36V, ±1V~18V	5mV @ 30V	0.25µA @ 5V	18mA @ 5V	2.5mA	-40°C ~ 105°C	8-SOIC	125,100
LM293MDREP	Texas Instruments	Open-Collector, Open-Drain, Rail-to-Rail	2V~36V, ±1V~18V	5mV @ 30V	0.25µA @ 5V	20mA	2.5mA	-55°C ~ 125°C	8-SOIC	4,300
AP393ASG-13	Diodes Incorporated	CMOS, DTL, ECL, MOS, Open-Collector, TTL	2V~36V, ±1V~18V	8mV @ 5V	0.4µA @ 5V	16mA @ 5V	2.5mA	0°C ~ 70°C	8-SOP	3,762
AS393AMTR-E1	Diodes Incorporated	Open-Collector	2V~36V, ±1V~18V	3mV @ 5V	0.25µA @ 5V	16mA @ 5V	1mA	-40°C ~ 85°C	8-SOIC	232,200
AS393AMTR-G1	Diodes Incorporated	Open-Collector	2V~36V, ±1V~18V	3mV @ 1.4V	0.4µA @ 5V	16mA	1mA	-40°C ~ 85°C	8-SOIC	25,475
AS393MTR-E1	Diodes Incorporated	Open-Collector	2V~36V, ±1V~18V	5mV @ 5V	0.25µA @ 5V	16mA @ 5V	1mA	-40°C ~ 85°C	8-SOIC	354,160
AS393MTR-G1	Diodes Incorporated	Open-Collector	2V~36V, ±1V~18V	5mV @ 5V	0.25µA @ 5V	16mA @ 5V	1mA	-40°C ~ 85°C	8-SOIC	300,400
BA10393F-E2	Rohm Semiconductor	Open-Collector	2V~36V, ±1V~18V	5mV @ 5V	0.25µA @ 5V	16mA @ 5V	1mA	-40°C ~ 85°C	8-SOP	105,300

Engineering Selection Recommendations

Direct substitutes LM293DRG3 and LM293MDREP from Texas Instruments maintain full electrical equivalence to the LM293DR2G with identical supply voltage ranges, input offset specifications, and quiescent current ratings. LM293DRG3 offers increased output current capability (20mA versus 16mA) while maintaining the same operating temperature range. LM293MDREP extends the operating temperature range to -55°C ~ 125°C, suitable for industrial and automotive applications requiring wider temperature performance.

STMicroelectronics LM293DT variants provide functional equivalence with extended temperature ranges. The LM293DT rated -40°C ~ 105°C offers a practical middle ground for extended-temperature applications. The LM193DT variant extends to -55°C ~ 125°C but features open-collector output only, lacking open-drain capability.

Diodes Incorporated AS393 series parts (AS393AMTR-E1, AS393AMTR-G1, AS393MTR-E1, AS393MTR-G1) provide functional equivalence with open-collector output configuration. These parts feature lower quiescent current (1mA versus 2.5mA) and improved input offset specifications in certain variants. AS393MTR-E1 and AS393MTR-G1 offer the highest inventory availability (354,160 and 300,400 units respectively).

Rohm Semiconductor BA10393F-E2 provides functional equivalence in an 8-SOP package variant (4.40mm width versus 3.90mm). This part is suitable for applications where package footprint differences are acceptable.

Diodes Incorporated AP393ASG-13 operates within a narrower temperature range (0°C ~ 70°C) and features multiple output type options. This part is suitable for commercial-grade applications only.

All substitute parts maintain ROHS3 compliance and are active in production status.

Frequently Asked Questions (FAQ)

Q: Can LM293DRG3 directly replace LM293DR2G in all applications?

A: Yes. LM293DRG3 maintains identical electrical specifications including supply voltage range (2V ~ 36V, ±1V ~ 18V), input offset voltage (5mV @ 30V), input bias current (0.25µA @ 5V), and quiescent current (2.5mA). Output current is increased to 20mA, which is a performance improvement. Both parts use 8-SOIC packaging and operate across -25°C ~ 85°C.

Q: What is the difference between LM293DT and LM193DT?

A: Both are STMicroelectronics parts in 8-SOIC packaging. LM293DT features open-collector and open-drain output with -40°C ~ 105°C operating range. LM193DT features open-collector output only with extended -55°C ~ 125°C operating range. Select LM193DT only if the extended temperature range is required and open-drain output is not needed.

Q: Are AS393 series parts fully compatible with LM293DR2G?

A: AS393 series parts (AS393AMTR-E1, AS393AMTR-G1, AS393MTR-E1, AS393MTR-G1) provide functional equivalence with identical supply voltage ranges and 8-SOIC packaging. Key differences include open-collector output only (no open-drain), lower quiescent current (1mA versus 2.5mA), and operating temperature range of -40°C ~ 85°C. These parts are suitable for applications where open-drain output is not required.

Q: Why does BA10393F-E2 have a different package width?

A: BA10393F-E2 uses 8-SOP packaging with 4.40mm width versus the standard 8-SOIC 3.90mm width. This represents a different package family from the same manufacturer (Rohm Semiconductor). Verify PCB footprint compatibility before selection.

Q: Which substitute offers the best inventory availability?

A: AS393MTR-E1 and AS393MTR-G1 from Diodes Incorporated offer the highest inventory levels at 354,160 and 300,400 units respectively. LM293DT from STMicroelectronics provides 125,100 units with extended temperature capability.

Q: Can I use AP393ASG-13 in industrial temperature applications?

A: No. AP393ASG-13 operates only within 0°C ~ 70°C commercial temperature range. For industrial applications requiring extended temperature performance, select LM293MDREP (-55°C ~ 125°C), LM193DT (-55°C ~ 125°C), or LM293DT (-40°C ~ 105°C).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and are suitable for applications requiring RoHS certification.

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