MAX516BENG Equivalent & Substitute Parts

Part Overview

The MAX516BENG is a 4-channel general-purpose comparator manufactured by Analog Devices Inc./Maxim Integrated in a 24-DIP package. This device is classified as obsolete, making equivalent and substitute parts necessary for new designs and production continuity. The MAX516BENG operates with supply voltages from 4.75V to 16.5V and features CMOS/TTL output compatibility, designed for general-purpose comparison applications requiring through-hole mounting.

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	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution for the MAX516BENG is determined by the following critical parameters:

Number of elements: 4 channels required
Output type compatibility: CMOS/TTL output capability
Supply voltage range: Minimum 4.75V to 16.5V operation
Mounting type: Through-hole or surface-mount alternatives
Package compatibility: 24-DIP form factor or equivalent pin-count alternatives
Operating temperature range: -40°C to 85°C minimum

The substitute parts listed below meet these core functional requirements. However, substitute parts operate with different supply voltage ranges (2V ~ 36V or 2V ~ 32V), lower quiescent current specifications, and alternative package formats (14-CDIP, 14-SOIC, 14-TSSOP). These differences reflect modern comparator design standards and improved power efficiency compared to the obsolete MAX516BENG.

Parameter Comparison

Part Number	Manufacturer	Number of Elements	Output Type	Voltage - Supply (±)	Current - Quiescent (Max)	Operating Temperature	Package / Case	Mounting Type	Product Status	RoHS Status
MAX516BENG	Analog Devices Inc./Maxim Integrated	4	CMOS, TTL	4.75V ~ 16.5V	10mA	-40°C ~ 85°C	24-DIP (0.300", 7.62mm)	Through Hole	Obsolete	RoHS non-compliant
LM139AJ/PB	Texas Instruments	4	Open-Collector, Open-Drain	2V ~ 36V, ±1V ~ 18V	2.5mA	-55°C ~ 125°C	14-CDIP (0.300", 7.62mm)	Through Hole	Active	ROHS3 Compliant
LM139DT	STMicroelectronics	4	Open-Collector, Open-Drain	2V ~ 32V, ±1V ~ 16V	2mA	-55°C ~ 125°C	14-SOIC (0.154", 3.90mm Width)	Surface Mount	Active	ROHS3 Compliant
LM239APT	STMicroelectronics	4	CMOS, DTL, ECL, MOS, Open-Collector, TTL	2V ~ 32V, ±1V ~ 16V	2mA	-40°C ~ 105°C	14-TSSOP (0.173", 4.40mm Width)	Surface Mount	Active	ROHS3 Compliant
LM239PT	STMicroelectronics	4	CMOS, DTL, ECL, MOS, Open-Collector, TTL	2V ~ 32V, ±1V ~ 16V	2mA	-40°C ~ 105°C	14-TSSOP (0.173", 4.40mm Width)	Surface Mount	Active	ROHS3 Compliant
LM2901HYDT	STMicroelectronics	4	CMOS, DTL, ECL, MOS, Open-Collector, TTL	2V ~ 36V, ±1V ~ 18V	2.5mA	-40°C ~ 125°C	14-SOIC (0.154", 3.90mm Width)	Surface Mount	Active	ROHS3 Compliant
LM2901M	onsemi	4	DTL, MOS, Open-Collector, TTL	2V ~ 36V, ±1V ~ 18V	2.5mA	-40°C ~ 85°C	14-SOIC (0.154", 3.90mm Width)	Surface Mount	Obsolete	Not specified
LM2901N	National Semiconductor	4	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified	Active	Not specified
LM2901YDT	STMicroelectronics	4	CMOS, DTL, ECL, MOS, Open-Collector, TTL	2V ~ 32V, ±1V ~ 16V	2.5mA	-40°C ~ 125°C	14-SOIC (0.154", 3.90mm Width)	Surface Mount	Active	ROHS3 Compliant
LM339APT	STMicroelectronics	4	CMOS, DTL, ECL, MOS, Open-Collector, TTL	2V ~ 32V, ±1V ~ 16V	2.5mA	0°C ~ 70°C	14-TSSOP (0.173", 4.40mm Width)	Surface Mount	Active	ROHS3 Compliant
LM339D	STMicroelectronics	4	CMOS, DTL, ECL, MOS, Open-Collector, TTL	2V ~ 32V, ±1V ~ 16V	2.5mA	0°C ~ 70°C	14-SOIC (0.154", 3.90mm Width)	Surface Mount	Active	ROHS3 Compliant

Engineering Selection Recommendations

For new designs replacing the obsolete MAX516BENG, the following selection criteria apply:

Active Product Status Priority: LM139AJ/PB, LM139DT, LM239APT, LM239PT, LM2901HYDT, LM2901YDT, LM339APT, and LM339D are all active products with current manufacturing support and availability. These parts are preferred over obsolete alternatives for production continuity.

RoHS Compliance: All recommended active substitutes are ROHS3 compliant, meeting modern environmental and regulatory requirements. The original MAX516BENG is RoHS non-compliant.

Through-Hole Mounting: LM139AJ/PB maintains through-hole mounting in a 14-CDIP package, providing the closest form-factor compatibility for direct board-level replacement without PCB redesign.

Surface-Mount Alternatives: LM139DT, LM239APT, LM239PT, LM2901HYDT, LM2901YDT, LM339APT, and LM339D offer surface-mount packages (14-SOIC and 14-TSSOP) for modern PCB assembly processes. These require PCB layout modification but provide improved thermal performance and reduced board space.

Supply Voltage Compatibility: All substitute parts operate within or exceed the MAX516BENG supply voltage range of 4.75V to 16.5V. Substitute parts support extended voltage ranges (2V ~ 36V or 2V ~ 32V), providing greater design flexibility.

Quiescent Current Reduction: Substitute parts feature significantly lower quiescent current (2mA to 2.5mA) compared to the MAX516BENG (10mA), resulting in reduced power consumption in battery-powered or low-power applications.

Frequently Asked Questions (FAQ)

Q: Can I directly replace MAX516BENG with LM139AJ/PB without PCB modification?

A: LM139AJ/PB maintains the same 0.300" (7.62mm) DIP pitch as the MAX516BENG and uses through-hole mounting. However, LM139AJ/PB is a 14-pin package while MAX516BENG is 24-pin. Pin-to-pin compatibility must be verified against your specific application schematic before substitution.

Q: What is the key difference between LM139AJ/PB and surface-mount alternatives like LM139DT?

A: LM139AJ/PB uses through-hole 14-CDIP packaging suitable for breadboard prototyping and legacy PCB designs. LM139DT uses surface-mount 14-SOIC packaging, requiring SMD assembly equipment and PCB redesign. Both are functionally equivalent 4-channel comparators with identical pin counts and electrical characteristics.

Q: Why do substitute parts have lower quiescent current than MAX516BENG?

A: Substitute parts reflect modern comparator design standards with improved power efficiency. The MAX516BENG's 10mA quiescent current is typical of legacy CMOS comparators from the 1980s-1990s. Contemporary designs achieve 2mA to 2.5mA through advanced semiconductor processing.

Q: Are LM239APT and LM239PT interchangeable?

A: Both LM239APT and LM239PT are 4-channel comparators in 14-TSSOP packages from STMicroelectronics with identical pin counts and electrical specifications. They differ in input offset voltage (2mV vs. 5mV @ 30V) and quiescent current specifications. Verify your application's precision requirements before selecting between them.

Q: Which substitute part is best for automotive applications?

A: LM2901HYDT carries AEC-Q100 automotive qualification and is specifically designed for automotive-grade reliability. This part is recommended for automotive applications requiring formal qualification documentation.

Q: Do all substitute parts support the full -40°C to 85°C operating temperature range of MAX516BENG?

A: Most substitute parts support -40°C to 125°C or -55°C to 125°C, exceeding the MAX516BENG range. LM339APT and LM339D operate from 0°C to 70°C, which is narrower than the original part. Verify operating temperature requirements for your application before selection.

Q: What is the pin-count difference between MAX516BENG and substitute parts?

A: MAX516BENG is a 24-pin DIP package. All listed substitute parts are 14-pin packages (14-CDIP, 14-SOIC, or 14-TSSOP). This reduction reflects the functional consolidation of 4-channel comparators into smaller modern packages. PCB redesign is required for any substitution.

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