AP393ASG-13 Equivalent & Substitute Parts

Part Overview

The AP393ASG-13 is a general-purpose dual comparator IC manufactured by Diodes Incorporated in 8-SOP surface mount packaging. This device operates across a wide supply voltage range (2V to 36V single supply, ±1V to ±18V dual supply) and features multiple output types including CMOS, DTL, ECL, MOS, open-collector, and TTL configurations. The part is actively produced and RoHS3 compliant. Equivalent and substitute parts are identified based on matching functional specifications, electrical parameters, and package compatibility to support design flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	AP393ASG-13
Manufacturer	Diodes Incorporated
Category	Linear
Type	General Purpose Comparator
Number of Elements	2
Output Type	CMOS, DTL, ECL, MOS, Open-Collector, TTL
Voltage Supply (Single/Dual)	2V ~ 36V / ±1V ~ 18V
Voltage - Input Offset (Max)	8mV @ 5V
Current - Input Bias (Max)	0.4µA @ 5V
Current - Output (Typ)	16mA @ 5V
Current - Quiescent (Max)	2.5mA
Operating Temperature	0°C ~ 70°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the AP393ASG-13 are qualified based on the following critical parameters:

Dual comparator configuration (2 elements per package)
Supply voltage range compatibility (minimum 2V ~ 36V single supply or ±1V ~ 18V dual supply)
Output type compatibility (open-collector output required for direct substitution)
Input offset voltage (maximum 8mV @ 5V or equivalent specification point)
Input bias current (maximum 0.4µA @ 5V or lower)
Output current capability (minimum 16mA @ 5V)
Quiescent current (maximum 2.5mA or lower)
8-pin SOP package (8-SOIC or 8-UFSON acceptable for surface mount applications)
Operating temperature range (minimum -40°C to 125°C preferred for extended industrial use)
RoHS3 compliance and active product status

Substitutes are grouped by manufacturer and package variant. Parts meeting all electrical parameters within specified tolerances are classified as direct equivalents. Parts with enhanced specifications (lower offset voltage, reduced bias current, extended temperature range) are classified as superior alternatives suitable for demanding applications.

Parameter Comparison

Parameter	AP393ASG-13	BA10393F-E2	BA2903F-E2	BA2903SF-E2	LM193DR	LM193H	LM193QT	LM2903AVQDR	LM2903AVQDRG4Q1	LM2903AVQDRQ1	LM2903AVQPWRQ1
Manufacturer	Diodes Inc.	Rohm Semi.	Rohm Semi.	Rohm Semi.	UMW	Nat'l Semi.	STMicro.	Texas Inst.	Texas Inst.	Texas Inst.	Texas Inst.
Number of Elements	2	2	2	2	2	2	2	2	2	2	2
Output Type	CMOS, DTL, ECL, MOS, OC, TTL	Open-Collector	Open-Collector	Open-Collector	OC, Rail-to-Rail	OC, Rail-to-Rail	OC, Rail-to-Rail	OC, Rail-to-Rail	OC, Rail-to-Rail	OC, Rail-to-Rail	OC, Rail-to-Rail
Supply Voltage (Single)	2V ~ 36V	2V ~ 36V	2V ~ 36V	2V ~ 36V	2V ~ 32V	2V ~ 36V	2V ~ 36V	2V ~ 36V	2V ~ 36V	2V ~ 36V	2V ~ 36V
Supply Voltage (Dual)	±1V ~ 18V	±1V ~ 18V	±1V ~ 18V	±1V ~ 18V	±1V ~ 16V	±1V ~ 18V	±1V ~ 18V	±1V ~ 18V	±1V ~ 18V	±1V ~ 18V	±1V ~ 18V
Input Offset Voltage (Max)	8mV @ 5V	5mV @ 5V	7mV @ 5V	7mV @ 5V	5mV	5mV @ 30V	Not Specified	2mV @ 32V	2mV @ 5V	2mV @ 5V	2mV @ 5V
Input Bias Current (Max)	0.4µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	250nA	0.1µA @ 5V	Not Specified	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V	0.25µA @ 5V
Output Current (Typ)	16mA @ 5V	16mA @ 5V	16mA @ 5V	16mA @ 5V	16mA	16mA @ 5V	Not Specified	20mA	20mA	20mA	20mA
Quiescent Current (Max)	2.5mA	1mA	1mA	1mA	1mA	2.5mA	2.5mA	2.5mA	2.5mA	2.5mA	2.5mA
Operating Temperature	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	Not Specified	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	8-SOIC (0.154", 3.90mm)	8-SOIC (0.173", 4.40mm)	8-SOIC (0.173", 4.40mm)	8-SOIC (0.173", 4.40mm)	8-SOIC (0.154", 3.90mm)	TO-99-8 Metal Can	8-UFDFN Exposed Pad	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-TSSOP (0.173", 4.40mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Through Hole	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	Not Specified	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Equivalents (Preferred for Pin-Compatible Replacement)

The BA10393F-E2, BA2903F-E2, and BA2903SF-E2 from Rohm Semiconductor are direct functional equivalents with improved electrical specifications. All three maintain the 2V to 36V supply voltage range and open-collector output configuration. The BA10393F-E2 offers the narrowest operating temperature range (-40°C to 85°C) suitable for commercial applications. The BA2903F-E2 and BA2903SF-E2 extend to -40°C to 125°C and -40°C to 105°C respectively, supporting industrial temperature requirements. All three reduce quiescent current to 1mA and input bias current to 0.25µA, improving power efficiency. RoHS3 compliance and active product status are maintained across all variants.

Superior Alternatives (Enhanced Performance)

The LM2903AVQDR, LM2903AVQDRG4Q1, LM2903AVQDRQ1, and LM2903AVQPWRQ1 from Texas Instruments provide superior electrical performance with input offset voltage reduced to 2mV and output current increased to 20mA. The LM2903AVQDRG4Q1 and LM2903AVQDRQ1 variants include AEC-Q100 automotive qualification, suitable for automotive and mission-critical applications. The LM2903AVQPWRQ1 offers 8-TSSOP packaging as an alternative to 8-SOIC. All Texas Instruments variants maintain -40°C to 125°C operating temperature range, RoHS3 compliance, and active product status.

Package-Specific Alternatives

The LM193DR from UMW provides 8-SOIC (0.154", 3.90mm) packaging matching the original AP393ASG-13 footprint, with extended temperature range (-55°C to 125°C) and rail-to-rail output capability. The LM193H from National Semiconductor offers TO-99-8 through-hole packaging for legacy board designs, with propagation delay specification of 700ns. The LM193QT from STMicroelectronics provides 8-UFDFN exposed pad packaging for space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can I directly replace AP393ASG-13 with BA10393F-E2 without PCB modification?

A: The BA10393F-E2 uses 8-SOIC packaging with 0.173" width compared to the AP393ASG-13's 0.154" width. While pin pitch remains compatible, PCB footprint verification is required. The Rohm part is electrically superior with lower input offset voltage (5mV vs 8mV) and reduced quiescent current (1mA vs 2.5mA).

Q: What is the key difference between LM2903AVQDRQ1 and LM2903AVQPWRQ1?

A: Both parts are Texas Instruments LM2903 variants with identical electrical specifications and AEC-Q100 automotive qualification. The primary difference is package type: LM2903AVQDRQ1 uses 8-SOIC (0.154", 3.90mm) while LM2903AVQPWRQ1 uses 8-TSSOP (0.173", 4.40mm). Select based on PCB layout requirements and available footprint space.

Q: Is the LM193H suitable for new designs?

A: The LM193H is actively produced but uses through-hole TO-99-8 packaging, which is not recommended for new surface mount designs. For new applications, select surface mount alternatives such as LM193DR, LM2903AVQDR, or BA2903F-E2 to align with modern manufacturing processes.

Q: What are the supply voltage limitations when substituting parts?

A: All listed substitutes support the AP393ASG-13 supply voltage range of 2V to 36V (single supply) or ±1V to ±18V (dual supply). The LM193DR has a slightly reduced dual supply range (±1V to ±16V). Verify application-specific supply requirements before selection.

Q: Do all substitute parts meet RoHS3 compliance?

A: All substitute parts listed are RoHS3 compliant except LM193H, for which compliance status is not specified. For applications requiring RoHS3 certification, select from BA10393F-E2, BA2903F-E2, BA2903SF-E2, LM193DR, LM193QT, or any LM2903 variant.

Q: Which substitute offers the best input offset voltage performance?

A: The LM2903AVQDR, LM2903AVQDRG4Q1, LM2903AVQDRQ1, and LM2903AVQPWRQ1 all specify 2mV input offset voltage at 5V, compared to the AP393ASG-13's 8mV specification. This represents a 75% improvement in offset accuracy, beneficial for precision analog applications.

Q: Can I use LM193QT in a standard 8-SOIC footprint?

A: No. The LM193QT uses 8-UFDFN exposed pad packaging (2x2mm), which is not compatible with standard 8-SOIC footprints. This package is designed for space-constrained applications and requires dedicated PCB layout.

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