MAX516BENG+ Equivalent & Substitute Parts

Part Overview

The MAX516BENG+ is a 4-channel general-purpose comparator manufactured by Analog Devices Inc./Maxim Integrated in 24-DIP packaging. This device features CMOS and TTL output types with a supply voltage range of 4.75V to 16.5V and operates across the industrial temperature range of -40°C to 85°C. The part is currently obsolete, making equivalent substitutes necessary for new designs and ongoing production support.

Key Parameters

Parameter	MAX516BENG+
Manufacturer	Analog Devices Inc./Maxim Integrated
Number of Elements	4
Output Type	CMOS, TTL
Voltage - Supply, Single/Dual (±)	4.75V ~ 16.5V
Current - Input Bias (Max)	0.3µA @ 16.5V
Current - Quiescent (Max)	10mA
Propagation Delay (Max)	1.5µs
Operating Temperature	-40°C ~ 85°C
Package / Case	24-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the MAX516BENG+ is determined by the following critical parameters:

Functional Equivalence: All substitute parts must be 4-channel general-purpose comparators with compatible output types (CMOS, TTL, or Open-Collector configurations).

Electrical Compatibility: Supply voltage range must overlap with or exceed the original 4.75V ~ 16.5V specification. Input bias current and quiescent current specifications must be compatible with the application circuit.

Package Compatibility: The original 24-DIP through-hole package can be substituted with alternative through-hole packages (14-DIP, 14-CDIP) or surface-mount equivalents (14-SO, 14-SOIC, 14-TSSOP) depending on board redesign capability.

Compliance & Status: Active product status is preferred for long-term availability. All substitutes maintain ROHS3 compliance and REACH unaffected status consistent with the original part.

Parameter Comparison

Parameter	MAX516BENG+	LM139AJ/PB	LM139DT	LM239APT	LM239PT	LM2901HYDT	LM2901M	LM2901YDT	LM339APT	LM339D
Manufacturer	Analog Devices	Texas Instruments	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	onsemi	STMicroelectronics	STMicroelectronics	STMicroelectronics
Number of Elements	4	4	4	4	4	4	4	4	4	4
Output Type	CMOS, TTL	Open-Collector, Open-Drain	General Purpose	CMOS, DTL, ECL, MOS, Open-Collector, TTL	CMOS, DTL, ECL, MOS, Open-Collector, TTL	CMOS, DTL, ECL, MOS, Open-Collector, TTL	DTL, MOS, Open-Collector, TTL	CMOS, DTL, ECL, MOS, Open-Collector, TTL	CMOS, DTL, ECL, MOS, Open-Collector, TTL	CMOS, DTL, ECL, MOS, Open-Collector, TTL
Voltage - Supply, Single/Dual (±)	4.75V ~ 16.5V	2V ~ 36V, ±1V ~ 18V	2V ~ 32V, ±1V ~ 16V	2V ~ 32V, ±1V ~ 16V	2V ~ 32V, ±1V ~ 16V	2V ~ 36V, ±1V ~ 18V	2V ~ 36V, ±1V ~ 18V	2V ~ 32V, ±1V ~ 16V	2V ~ 32V, ±1V ~ 16V	2V ~ 32V, ±1V ~ 16V
Current - Input Bias (Max)	0.3µA @ 16.5V	0.1µA @ 5V	0.25µA @ 5V	0.1µA @ 5V	0.25µA @ 5V	—	0.25µA @ 5V	0.25µA @ 5V	0.1µA @ 5V	0.25µA @ 5V
Current - Quiescent (Max)	10mA	2.5mA	2mA	2mA	2mA	2.5mA	2.5mA	2.5mA	2.5mA	2.5mA
Operating Temperature	-40°C ~ 85°C	-55°C ~ 125°C	-55°C ~ 125°C	-40°C ~ 105°C	-40°C ~ 105°C	—	-40°C ~ 85°C	-40°C ~ 125°C	0°C ~ 70°C	0°C ~ 70°C
Package / Case	24-DIP	14-CDIP	14-SOIC	14-TSSOP	14-TSSOP	14-SOIC	14-SOIC	14-SOIC	14-TSSOP	14-SOIC
Mounting Type	Through Hole	Through Hole	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Through-Hole Designs: LM139AJ/PB (Texas Instruments, 14-CDIP) maintains through-hole mounting compatibility with active product status and extended temperature range (-55°C to 125°C). This part is preferred for direct board-level replacement without redesign.

For Surface-Mount Migration: LM239PT and LM239APT (STMicroelectronics, 14-TSSOP) offer active status with compact surface-mount packaging. Both parts support the full voltage range and maintain ROHS3 compliance. LM239PT provides higher inventory availability (65,200 pcs).

For Automotive Applications: LM2901YDT (STMicroelectronics, 14-SOIC) carries AEC-Q100 qualification and automotive-grade designation with active product status. This part is suitable for automotive and harsh-environment applications.

For Extended Temperature Range: LM139AJ/PB and LM139DT support -55°C to 125°C operating range, exceeding the original -40°C to 85°C specification. These parts provide margin for temperature-sensitive applications.

For Quiescent Current Reduction: All substitute parts reduce quiescent current from 10mA to 2-2.5mA, improving power efficiency in battery-powered or low-power applications.

Frequently Asked Questions (FAQ)

Q: Can LM239APT directly replace MAX516BENG+ without board modification?

A: LM239APT requires board redesign due to package change from 24-DIP to 14-TSSOP surface mount. For direct replacement without redesign, use LM139AJ/PB (14-CDIP through-hole).

Q: What is the key difference between LM239APT and LM239PT?

A: Both are 14-TSSOP surface-mount parts with identical electrical specifications. LM239PT has significantly higher inventory (65,200 pcs vs. 1,345 pcs) and is preferred for production volume.

Q: Is the reduced quiescent current in substitutes a concern?

A: No. The reduction from 10mA to 2-2.5mA in substitute parts improves power efficiency and is compatible with the original circuit design. This represents a performance improvement.

Q: Which substitute offers the best long-term availability?

A: LM239PT (STMicroelectronics) with 65,200 pcs in stock and active product status provides the strongest availability position for sustained production.

Q: Can I use LM339APT or LM339D as substitutes?

A: LM339APT and LM339D are functionally compatible but operate at reduced temperature range (0°C to 70°C) compared to the original -40°C to 85°C. Use only if your application operates within 0°C to 70°C.

Q: What is the significance of AEC-Q100 qualification on LM2901YDT?

A: AEC-Q100 qualification indicates automotive-grade reliability testing. LM2901YDT is suitable for automotive, industrial, and mission-critical applications requiring enhanced reliability documentation.

Q: Are all substitutes ROHS3 compliant?

A: Yes, all active substitute parts listed maintain ROHS3 compliance and REACH unaffected status, consistent with the original MAX516BENG+.

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