MAX986ESA+ Equivalent & Substitute Parts

Part Overview

The MAX986ESA+ is a general-purpose CMOS comparator with open-drain, rail-to-rail output and TTL compatibility, manufactured by Analog Devices Inc./Maxim Integrated. This device operates across a supply voltage range of 2.5V to 5.5V (single supply) or ±1.25V to 2.75V (dual supply), making it suitable for precision analog signal comparison applications. The part is currently obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements.

Key Parameters

Parameter	MAX986ESA+
Manufacturer	Analog Devices Inc./Maxim Integrated
Package Type	8-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete
Type	General Purpose Comparator
Number of Elements	1
Output Type	CMOS, Open-Drain, Rail-to-Rail, TTL
Voltage Supply (Single/Dual)	2.5V ~ 5.5V, ±1.25V ~ 2.75V
Input Offset Voltage (Max)	5mV @ 5.5V
Input Bias Current (Max)	1pA @ 5.5V
Quiescent Current (Max)	24µA
CMRR / PSRR (Typ)	80dB CMRR, 80dB PSRR
Propagation Delay (Max)	450ns
Hysteresis	±3mV
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX986ESA+ is determined by the following critical parameters:

Functional Type: Single-element general-purpose comparator with open-drain output
Output Configuration: Rail-to-rail capability with TTL compatibility
Supply Voltage Range: Minimum 2.5V operation with upper range extending to at least 5.5V
Input Offset Voltage: Maximum 5mV specification
Input Bias Current: Maximum 1pA specification
Propagation Delay: Performance within 450ns maximum
Hysteresis Characteristics: Controlled hysteresis for stable operation
Operating Temperature Range: Minimum -40°C to 85°C coverage
Package Compatibility: Surface-mount form factor with electrical pin compatibility

The identified substitute parts (NCS2202SN1T1G and NCV2202SN2T1G) meet these core functional requirements while accommodating package form factor differences. Both substitutes are active products with enhanced availability and extended temperature or automotive-grade qualifications.

Parameter Comparison

Parameter	MAX986ESA+	NCS2202SN1T1G	NCV2202SN2T1G
Manufacturer	Analog Devices Inc./Maxim Integrated	onsemi	onsemi
Product Status	Obsolete	Active	Active
Type	General Purpose	General Purpose	General Purpose
Number of Elements	1	1	1
Output Type	CMOS, Open-Drain, Rail-to-Rail, TTL	Open-Drain, Rail-to-Rail	Not specified
Voltage Supply (Single/Dual)	2.5V ~ 5.5V, ±1.25V ~ 2.75V	0.85V ~ 6V	0.85V ~ 6V
Input Offset Voltage (Max)	5mV @ 5.5V	5mV @ 6V	5mV
Input Bias Current (Max)	1pA @ 5.5V	1pA @ 6V	1pA
Quiescent Current (Max)	24µA	17µA	15µA
CMRR / PSRR (Typ)	80dB CMRR, 80dB PSRR	70dB CMRR, 80dB PSRR	Not specified
Propagation Delay (Max)	450ns	1.1µs	800ns
Hysteresis	±3mV	20mV	8mV
Operating Temperature	-40°C ~ 85°C	-40°C ~ 105°C	-40°C ~ 125°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	SOT-23-5 Thin, TSOT-23-5	SOT-23-5 Thin, TSOT-23-5
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

NCS2202SN1T1G is recommended as the primary substitute for applications requiring extended operating temperature range (-40°C to 105°C) and active product status with established supply chain availability. This part maintains open-drain, rail-to-rail output characteristics and meets the input offset voltage and bias current specifications of the MAX986ESA+. The expanded supply voltage range (0.85V to 6V) provides additional design flexibility. Package transition from 8-SOIC to 5-TSOP requires PCB layout modification.

NCV2202SN2T1G is recommended for automotive-grade applications requiring AEC-Q100 qualification and extended temperature operation (-40°C to 125°C). This part offers improved quiescent current performance (15µA) and faster propagation delay (800ns) compared to NCS2202SN1T1G. Automotive qualification and grade designation make this suitable for automotive and industrial environments. Package form factor is identical to NCS2202SN1T1G (5-TSOP).

Both substitutes are ROHS3 compliant and maintain MSL rating of 1 (Unlimited), ensuring compatibility with standard manufacturing processes.

Frequently Asked Questions (FAQ)

Q: Why is the MAX986ESA+ being discontinued? A: The MAX986ESA+ is classified as obsolete. Substitute parts from onsemi provide equivalent functionality with active product status and improved availability.

Q: What is the primary difference between NCS2202SN1T1G and NCV2202SN2T1G? A: NCV2202SN2T1G is automotive-grade with AEC-Q100 qualification and extended temperature range to 125°C, while NCS2202SN1T1G is standard-grade with temperature range to 105°C. NCV2202SN2T1G also features lower quiescent current (15µA vs. 17µA) and faster propagation delay (800ns vs. 1.1µs).

Q: Can I use these substitutes in existing MAX986ESA+ designs without modification? A: Electrical functionality is compatible; however, package transition from 8-SOIC to 5-TSOP requires PCB redesign. Pin configuration must be verified against application schematics.

Q: What are the key parameter differences I should consider? A: Propagation delay increases from 450ns (MAX986ESA+) to 800ns-1.1µs in substitutes. Hysteresis increases from ±3mV to 8mV-20mV. Supply voltage range expands to 0.85V-6V. CMRR decreases slightly from 80dB to 70dB in NCS2202SN1T1G.

Q: Are both substitutes RoHS and REACH compliant? A: Yes, both NCS2202SN1T1G and NCV2202SN2T1G are ROHS3 compliant and REACH unaffected.

Q: Which substitute should I select for new designs? A: For standard industrial applications, NCS2202SN1T1G provides active product status and extended temperature range. For automotive applications, NCV2202SN2T1G is required due to AEC-Q100 qualification.

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