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 is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The MAX986ESA operates across a supply voltage range of 2.5V to 5.5V (single supply) or ±1.25V to 2.75V (dual supply), with an 8-SOIC surface-mount package.

Key Parameters

Parameter	MAX986ESA
Manufacturer	Analog Devices Inc./Maxim Integrated
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
Voltage - Input Offset (Max)	5mV @ 5.5V
Current - Input Bias (Max)	1pA @ 5.5V
Current - Quiescent (Max)	24µA
CMRR / PSRR (Typ)	80dB CMRR, 80dB PSRR
Propagation Delay (Max)	450ns
Hysteresis	±3mV
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the MAX986ESA are selected based on the following critical parameters that determine functional compatibility:

Comparator Type: General-purpose CMOS comparator with open-drain output
Output Configuration: Rail-to-rail capability with open-drain topology
Supply Voltage Range: Minimum overlap of 2.5V ~ 5.5V single supply operation
Input Offset Voltage: Maximum 5mV specification
Input Bias Current: Maximum 1pA specification
Quiescent Current: Comparable low-power operation
Propagation Delay: Performance within acceptable timing margins
Operating Temperature Range: Minimum -40°C ~ 85°C coverage
Package Compatibility: Surface-mount packages suitable for PCB integration
Compliance: ROHS3 compliance and MSL Level 1

The substitute parts NCS2202SN1T1G and NCV2202SN2T1G meet these criteria within their specified electrical and mechanical parameters, though package form factors differ from the original 8-SOIC configuration.

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
Voltage - Input Offset (Max)	5mV @ 5.5V	5mV @ 6V	5mV
Current - Input Bias (Max)	1pA @ 5.5V	1pA @ 6V	1pA
Current - Quiescent (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	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

NCS2202SN1T1G is an active product from onsemi with extended operating temperature range (-40°C ~ 105°C) and lower quiescent current (17µA). This part maintains ROHS3 compliance and MSL Level 1 rating. The 5-TSOP package requires PCB layout modification from the original 8-SOIC footprint. Propagation delay is longer at 1.1µs compared to the MAX986ESA specification of 450ns.

NCV2202SN2T1G is an automotive-grade active product from onsemi qualified to AEC-Q100 standard with the highest operating temperature range (-40°C ~ 125°C) and lowest quiescent current (15µA). This part also maintains ROHS3 compliance and MSL Level 1 rating. The 5-TSOP package requires PCB layout modification. Propagation delay of 800ns provides intermediate performance between the other options.

Both substitute parts are currently in active production status, ensuring long-term availability compared to the obsolete MAX986ESA.

Frequently Asked Questions (FAQ)

Q: Can NCS2202SN1T1G or NCV2202SN2T1G be used as direct pin-for-pin replacements for MAX986ESA?

A: No. The MAX986ESA uses an 8-SOIC package while both substitute parts use 5-TSOP packages. PCB layout and routing modifications are required. Pin assignments differ between package types and must be verified against individual datasheets before implementation.

Q: What are the key electrical differences between the substitute parts and the original MAX986ESA?

A: The substitute parts have wider supply voltage ranges (0.85V ~ 6V versus 2.5V ~ 5.5V), lower quiescent current specifications, and extended operating temperature ranges. Propagation delay is longer in both substitutes. Hysteresis values differ: MAX986ESA specifies ±3mV, while NCS2202SN1T1G specifies 20mV and NCV2202SN2T1G specifies 8mV.

Q: Which substitute part should be selected for automotive applications?

A: NCV2202SN2T1G is qualified to AEC-Q100 automotive standard and is the appropriate choice for automotive applications requiring formal qualification documentation.

Q: Are both substitute parts ROHS3 compliant?

A: Yes. Both NCS2202SN1T1G and NCV2202SN2T1G are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the MAX986ESA.

Q: What is the impact of different propagation delay specifications?

A: The MAX986ESA specifies 450ns maximum propagation delay. NCV2202SN2T1G specifies 800ns and NCS2202SN1T1G specifies 1.1µs. Applications with timing-critical comparator output requirements must account for these differences in system design.

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