MAX9041AESA Equivalent & Substitute Parts

Part Overview

The MAX9041AESA is a single-channel comparator with integrated voltage reference manufactured by Analog Devices Inc./Maxim Integrated. This device features CMOS push-pull output with rail-to-rail capability and TTL compatibility, housed in an 8-SOIC surface mount package. The MAX9041AESA is classified as obsolete, making identification of functionally equivalent active alternatives essential for new designs and production continuity.

Key Parameters

Parameter	Value
Voltage - Supply, Single/Dual (±)	2.5V ~ 5.5V
Voltage - Input Offset (Max)	5mV @ 5V
Current - Input Bias (Max)	1pA @ 5V
Current - Output (Typ)	8mA
Current - Quiescent (Max)	72µA
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
Output Type	CMOS, Push-Pull, Rail-to-Rail, TTL
Number of Elements	1
Type	with Voltage Reference

Substitute Part Grouping Explanation

Substitution of the MAX9041AESA is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications in the following critical areas:

Supply voltage range: 2.5V ~ 5.5V
Input offset voltage: 5mV @ 5V maximum
Input bias current: 1pA @ 5V maximum
Output current capability: 8mA typical
Quiescent current: 72µA maximum
Common-mode and power supply rejection ratios: 80dB each
Propagation delay: 450ns maximum
Hysteresis: ±3mV
Operating temperature range: -40°C ~ 85°C
Package configuration: 8-SOIC surface mount
Output architecture: CMOS push-pull, rail-to-rail, TTL compatible
Integrated voltage reference functionality

The MAX9041AESA+ meets all these criteria and serves as a direct functional equivalent with identical electrical performance and package specifications.

Parameter Comparison

Parameter	MAX9041AESA	MAX9041AESA+
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Product Status	Obsolete	Active
Voltage - Supply, Single/Dual (±)	2.5V ~ 5.5V	2.5V ~ 5.5V
Voltage - Input Offset (Max)	5mV @ 5V	5mV @ 5V
Current - Input Bias (Max)	1pA @ 5V	1pA @ 5V
Current - Output (Typ)	8mA	8mA
Current - Quiescent (Max)	72µA	72µA
CMRR, PSRR (Typ)	80dB CMRR, 80dB PSRR	80dB CMRR, 80dB PSRR
Propagation Delay (Max)	450ns	450ns
Hysteresis	±3mV	±3mV
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount
Output Type	CMOS, Push-Pull, Rail-to-Rail, TTL	CMOS, Push-Pull, Rail-to-Rail, TTL
Number of Elements	1	1
Type	with Voltage Reference	with Voltage Reference
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The MAX9041AESA+ is the direct substitute for the obsolete MAX9041AESA. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical specifications and package configurations. The primary distinction is product status: the MAX9041AESA is obsolete while the MAX9041AESA+ maintains active production status.

Both parts maintain full compliance with ROHS3 and REACH regulations. The MAX9041AESA+ is available in tube packaging with confirmed inventory availability, making it suitable for immediate procurement and integration into production environments.

For applications currently using the MAX9041AESA, direct substitution with the MAX9041AESA+ requires no circuit modifications or design changes, as all electrical parameters, thermal characteristics, and package dimensions remain identical.

Frequently Asked Questions (FAQ)

Q: Can the MAX9041AESA+ be used as a direct replacement for the MAX9041AESA?

A: Yes. The MAX9041AESA+ is electrically and mechanically identical to the MAX9041AESA. All electrical parameters, operating ranges, and package specifications are equivalent. No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The MAX9041AESA is classified as obsolete. The MAX9041AESA+ is the active equivalent from the same manufacturer, ensuring continued availability and supply chain reliability.

Q: Are there any packaging differences between these parts?

A: Both parts use the 8-SOIC surface mount package with identical dimensions (0.154" width, 3.90mm). The MAX9041AESA+ is supplied in tube packaging, while the original part number does not specify packaging format in the provided data.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the MAX9041AESA and MAX9041AESA+ are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is identical at MSL 1 (Unlimited).

Q: What are the key electrical parameters that define substitution compatibility?

A: Supply voltage range (2.5V ~ 5.5V), input offset voltage (5mV @ 5V), input bias current (1pA @ 5V), output current (8mA typical), quiescent current (72µA maximum), rejection ratios (80dB CMRR and PSRR), propagation delay (450ns maximum), and hysteresis (±3mV) must all remain identical for substitution.

Q: Is the integrated voltage reference functionality preserved in the substitute part?

A: Yes. Both the MAX9041AESA and MAX9041AESA+ are comparators with integrated voltage reference. This functionality is identical across both part numbers.

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