MAX4162ESA Equivalent & Substitute Parts

Part Overview

The MAX4162ESA is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-SOIC surface-mount package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. The MAX4162ESA features rail-to-rail output capability and operates across a 2.7V to 10V supply range, making it suitable for low-power analog signal conditioning applications.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Slew Rate	0.115	V/µs
Gain Bandwidth Product	200	kHz
Current - Input Bias	1	pA
Voltage - Input Offset	500	µV
Current - Supply	25	µA
Current - Output / Channel	15	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	10	V
Operating Temperature	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	RoHS non-compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MAX4162ESA is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Number of Circuits: 1
Output Type: Rail-to-Rail
Operating Temperature Range: -40°C to 85°C
Voltage Supply Span: Minimum 2.7V, Maximum ≥10V
Current - Output / Channel: ≥15 mA

Substitute Categories:

Category 1: Direct Equivalent (Identical Specifications) The MAX4162ESA+ is a direct equivalent with identical electrical specifications. The primary distinction is product status (Active vs. Obsolete) and packaging format (Tube vs. standard).

Category 2: Functional Substitutes (Voltage Feedback Amplifiers) The AD8031 series (AD8031ARZ, AD8031ARZ-REEL, AD8031ARZ-REEL7, AD8031BRZ, AD8031BRZ-REEL7) are voltage feedback amplifiers that meet all mechanical and core electrical requirements. These devices share the same 8-SOIC package, rail-to-rail output, single-circuit configuration, and operating temperature range. All AD8031 variants maintain the required 15 mA output current capability and operate within the 2.7V to 12V supply range, which encompasses the MAX4162ESA requirement of 2.7V to 10V.

Parameter Comparison

Parameter	MAX4162ESA	MAX4162ESA+	AD8031ARZ	AD8031ARZ-REEL	AD8031ARZ-REEL7	AD8031BRZ	AD8031BRZ-REEL7
Amplifier Type	General Purpose	General Purpose	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback
Number of Circuits	1	1	1	1	1	1	1
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	0.115	0.115	35	35	35	35	35
Gain Bandwidth Product / -3dB Bandwidth	200 kHz	200 kHz	80 MHz	80 MHz	80 MHz	80 MHz	80 MHz
Current - Input Bias (pA/nA)	1 pA	1 pA	450 nA	450 nA	450 nA	450 nA	450 nA
Voltage - Input Offset (µV)	500	500	1000	1000	1000	500	500
Current - Supply (µA)	25	25	900	900	900	900	900
Current - Output / Channel (mA)	15	15	15	15	15	15	15
Voltage - Supply Span (Min)	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V
Voltage - Supply Span (Max)	10 V	10 V	12 V	12 V	12 V	12 V	12 V
Operating Temperature	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement (No Design Changes Required): Select MAX4162ESA+ when procurement of the original MAX4162ESA is unavailable. This part maintains identical electrical specifications and package configuration. The MAX4162ESA+ is Active status and ROHS3 compliant, providing improved supply chain availability and regulatory compliance compared to the obsolete MAX4162ESA.

For Functional Substitution (Design Verification Required): The AD8031 series (all variants) are functionally compatible substitutes that meet all mechanical and core electrical requirements. These devices are Active status and ROHS3 compliant. Selection among AD8031 variants depends on packaging and delivery format requirements:

AD8031ARZ: Tube packaging, standard delivery
AD8031ARZ-REEL / AD8031ARZ-REEL7: Cut Tape & Digi-Reel packaging, automated assembly compatibility
AD8031BRZ: Tube packaging, tighter input offset specification (500 µV vs. 1000 µV)
AD8031BRZ-REEL7: Cut Tape & Digi-Reel packaging, tighter input offset specification

Compliance Considerations: All substitute parts listed are ROHS3 compliant and REACH unaffected, addressing regulatory requirements not met by the obsolete MAX4162ESA. All parts maintain MSL 1 (Unlimited) moisture sensitivity classification.

Supply Chain Status: Current inventory availability: MAX4162ESA+ (12,700 pcs), AD8031ARZ-REEL7 (24,058 pcs), AD8031BRZ-REEL7 (15,300 pcs), AD8031ARZ (19,526 pcs), AD8031ARZ-REEL (3,300 pcs), AD8031BRZ (1,679 pcs).

Frequently Asked Questions (FAQ)

Q: Can AD8031 series parts directly replace MAX4162ESA in existing designs?

A: AD8031 series parts are mechanically and electrically compatible for applications where the increased slew rate (35 V/µs vs. 0.115 V/µs) and bandwidth (80 MHz vs. 200 kHz) do not introduce stability or noise concerns. The higher performance characteristics of AD8031 devices are backward-compatible with MAX4162ESA circuit designs. However, circuit validation is recommended for noise-sensitive applications.

Q: What is the difference between AD8031ARZ and AD8031BRZ?

A: Both variants are identical except for input offset voltage specification. AD8031ARZ specifies 1 mV maximum input offset, while AD8031BRZ specifies 500 µV maximum input offset. AD8031BRZ is the tighter-tolerance grade and is suitable for precision applications requiring lower offset drift.

Q: What packaging options are available for AD8031?

A: AD8031 is available in three packaging formats: Tube (standard delivery), Cut Tape & Digi-Reel standard (REEL), and Cut Tape & Digi-Reel 7-inch (REEL7). The REEL and REEL7 variants are optimized for automated pick-and-place assembly. Selection depends on manufacturing process requirements.

Q: Is MAX4162ESA+ a true equivalent to MAX4162ESA?

A: Yes. MAX4162ESA+ is the direct equivalent with identical electrical specifications, package, and pin configuration. The primary differences are product status (Active vs. Obsolete) and packaging format (Tube). MAX4162ESA+ is recommended for new procurement when MAX4162ESA is unavailable.

Q: What are the key electrical differences between MAX4162ESA and AD8031?

A: The primary differences are slew rate (0.115 V/µs vs. 35 V/µs), bandwidth (200 kHz vs. 80 MHz), input bias current (1 pA vs. 450 nA), and quiescent supply current (25 µA vs. 900 µA). AD8031 is a higher-performance device suitable for faster signal conditioning. MAX4162ESA is optimized for ultra-low power applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed (MAX4162ESA+, AD8031ARZ, AD8031ARZ-REEL, AD8031ARZ-REEL7, AD8031BRZ, AD8031BRZ-REEL7) are ROHS3 compliant. The original MAX4162ESA is RoHS non-compliant.

Q: Can I use AD8031 in a battery-powered application designed for MAX4162ESA?

A: AD8031 has higher quiescent current consumption (900 µA vs. 25 µA). For battery-powered designs where power consumption is critical, MAX4162ESA+ is the preferred substitute. AD8031 is suitable only if the application can tolerate the increased current draw.

Q: What is the moisture sensitivity level for all these parts?

A: All parts listed maintain MSL 1 (Unlimited) classification, indicating no moisture sensitivity restrictions for storage or handling.

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