MAX4337EKA-T Equivalent & Substitute Parts

Part Overview

The MAX4337EKA-T is a general purpose operational amplifier featuring dual circuits in a surface mount SOT-23-8 package. This device provides rail-to-rail output capability with a supply voltage range of 2.7V to 5.5V, making it suitable for low-voltage analog signal processing applications. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure long-term component availability for production and maintenance requirements.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Slew Rate	1.8	V/µs
Gain Bandwidth Product	5	MHz
Current - Input Bias	100	nA
Voltage - Input Offset	600	µV
Current - Supply (per Channel)	1.3	mA
Current - Output / Channel	110	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature Range	-40 to 85	°C
Package / Case	SOT-23-8	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MAX4337EKA-T is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Dual-channel general purpose amplifier configuration with rail-to-rail output, slew rate of 1.8V/µs, gain bandwidth product of 5 MHz, input bias current of 100 nA, input offset voltage of 600 µV, supply current of 1.3mA per channel, and output current capability of 110 mA per channel.

Supply Voltage Compatibility: Operating range from 2.7V to 5.5V minimum and maximum supply span.

Thermal Performance: Operating temperature range of -40°C to 85°C.

Mechanical & Environmental: SOT-23-8 surface mount package, ROHS3 compliance, and MSL Level 1 moisture sensitivity rating.

The substitute part MAX4337EKA+T meets all electrical and mechanical specifications identically to the main part, with the primary distinction being packaging format (Tape & Reel versus individual unit) and active product status.

Parameter Comparison

Parameter	MAX4337EKA-T (Main)	MAX4337EKA+T (Substitute)	Match Status
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Identical
Amplifier Type	General Purpose	General Purpose	Identical
Number of Circuits	2	2	Identical
Output Type	Rail-to-Rail	Rail-to-Rail	Identical
Slew Rate (V/µs)	1.8	1.8	Identical
Gain Bandwidth Product (MHz)	5	5	Identical
Current - Input Bias (nA)	100	100	Identical
Voltage - Input Offset (µV)	600	600	Identical
Current - Supply per Channel (mA)	1.3	1.3	Identical
Current - Output / Channel (mA)	110	110	Identical
Voltage - Supply Span Min (V)	2.7	2.7	Identical
Voltage - Supply Span Max (V)	5.5	5.5	Identical
Operating Temperature (°C)	-40 to 85	-40 to 85	Identical
Package / Case	SOT-23-8	SOT-23-8	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Identical
Product Status	Obsolete	Active	Substitute is Active
Packaging Format	Individual Unit	Tape & Reel (TR)	Different Format

Engineering Selection Recommendations

The MAX4337EKA+T is a direct functional equivalent to the MAX4337EKA-T. All electrical specifications, thermal characteristics, and mechanical dimensions are identical. The primary distinction is product status: the main part is classified as obsolete, while the substitute is active in production.

Selection of MAX4337EKA+T is appropriate for new designs and ongoing production requirements. The substitute maintains full compatibility with existing PCB layouts and circuit designs developed for the MAX4337EKA-T. Both parts carry ROHS3 compliance certification and identical moisture sensitivity ratings, ensuring environmental and regulatory consistency.

The packaging format difference (Tape & Reel for the substitute versus individual unit for the main part) affects procurement and assembly logistics but does not impact electrical or mechanical performance. Organizations requiring individual unit quantities may need to coordinate with suppliers regarding minimum order quantities or reel-to-tube conversion services.

Frequently Asked Questions (FAQ)

Q: Can MAX4337EKA+T be used as a direct replacement for MAX4337EKA-T in existing designs?

A: Yes. All electrical specifications, operating parameters, and mechanical dimensions are identical. The devices are pin-compatible and functionally equivalent. PCB layouts and circuit designs require no modification.

Q: What is the difference between MAX4337EKA-T and MAX4337EKA+T?

A: The primary difference is packaging format. MAX4337EKA-T is supplied as individual units, while MAX4337EKA+T is supplied in Tape & Reel format. Electrical and thermal specifications are identical.

Q: Why is the MAX4337EKA-T classified as obsolete?

A: Obsolescence classification indicates the part is no longer in active production. The MAX4337EKA+T remains in active production and serves as the current equivalent.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical ROHS3 compliance certification, MSL Level 1 moisture sensitivity rating, and EAR99 export classification.

Q: What supply voltage range does this amplifier support?

A: The device operates across a supply voltage span of 2.7V minimum to 5.5V maximum, supporting both single and dual supply configurations within this range.

Q: Is the SOT-23-8 package suitable for automated assembly?

A: Yes. Both parts use SOT-23-8 surface mount packaging, which is standard for automated pick-and-place assembly processes.

Q: What is the operating temperature range for this amplifier?

A: The operating temperature range is -40°C to 85°C, suitable for industrial and commercial applications.

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