MAX4166EUA Equivalent & Substitute Parts

Part Overview

The MAX4166EUA is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, designed for rail-to-rail applications in 8-uMAX/uSOP surface mount packaging. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity. The part operates across a supply voltage range of 2.7 V to 6.5 V with a gain bandwidth product of 5 MHz and slew rate of 2 V/µs, making it suitable for general-purpose amplification circuits requiring compact form factors.

Substiute Parts

MAX4166EUA

Analog Devices Inc./Maxim IntegratedIn Stock: 3764MAX4166EUA Datasheet

Current PartRFQ

MAX4166EUA+

Analog Devices Inc./Maxim IntegratedIn Stock: 5206MAX4166EUA+ Datasheet

DirectRFQ

TLV2460AQPWRG4Q1

Texas InstrumentsIn Stock: 721TLV2460AQPWRG4Q1 Datasheet

MFR RecommendedRFQ

TLV2460QPWG4

Texas InstrumentsIn Stock: 698TLV2460QPWG4 Datasheet

MFR RecommendedRFQ

TLV2460QPWRG4Q1

Texas InstrumentsIn Stock: 1099TLV2460QPWRG4Q1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4166EUA is determined by the following critical parameters: amplifier type (general purpose), number of circuits (1), output type (rail-to-rail), supply voltage range compatibility (minimum 2.7 V, maximum 6.5 V or higher), operating temperature range, and surface mount packaging. Substitute parts must maintain functional equivalence in these core electrical and mechanical characteristics.

The substitution logic is organized into two categories:

Direct Manufacturer Equivalent: MAX4166EUA+ represents the active production variant of the same base product (MAX4166) with identical electrical specifications and packaging, differing only in product status and RoHS compliance.

Cross-Manufacturer Alternatives: Texas Instruments TLV2460 series devices (TLV2460AQPWRG4Q1, TLV2460QPWG4, TLV2460QPWRG4Q1) provide functional substitution with compatible supply voltage ranges (2.7 V to 6 V), rail-to-rail output, and surface mount 8-TSSOP packaging. These alternatives operate across extended temperature ranges (-40°C to 125°C) and include automotive-grade qualification where specified.

Parameter Comparison

Engineering Selection Recommendations

MAX4166EUA+ (Direct Equivalent): This part is the recommended primary substitute for the obsolete MAX4166EUA. It maintains identical electrical specifications and packaging while offering active product status and ROHS3 compliance. Selection of MAX4166EUA+ eliminates obsolescence risk and provides regulatory compliance for new designs and production continuity.

TLV2460AQPWRG4Q1 (Cross-Manufacturer Alternative): This Texas Instruments device provides functional substitution with active product status and automotive-grade qualification (AEC-Q100). The TLV2460AQPWRG4Q1 offers superior input bias current (1.3 nA versus 50 nA), higher gain bandwidth product (6.4 MHz versus 5 MHz), and reduced supply current (550 µA versus 1.3 mA). The maximum supply voltage is reduced to 6 V, requiring circuit verification for applications requiring the full 6.5 V capability of the original part. ROHS3 compliance and extended operating temperature range (-40°C to 125°C) provide additional design flexibility.

TLV2460QPWRG4Q1 (Cross-Manufacturer Alternative): This variant offers identical electrical specifications to TLV2460AQPWRG4Q1 with automotive-grade qualification and active product status. Selection is appropriate for applications requiring automotive-qualified components.

TLV2460QPWG4 (Not Recommended): This part is discontinued at DiGi Electronics and should not be selected for new designs or production planning despite active base product status.

Frequently Asked Questions (FAQ)

Q: Can MAX4166EUA+ be used as a direct replacement for MAX4166EUA?

A: Yes. MAX4166EUA+ is the active production equivalent of MAX4166EUA with identical electrical specifications, pin configuration, and 8-uMAX/uSOP packaging. The primary differences are product status (active versus obsolete) and RoHS compliance (ROHS3 versus non-compliant). No circuit modifications are required.

Q: What are the key differences between MAX4166EUA and TLV2460 series devices?

A: The primary differences are: (1) Slew rate is lower in TLV2460 (1.6 V/µs versus 2 V/µs); (2) Gain bandwidth product is higher in TLV2460 (6.4 MHz versus 5 MHz); (3) Input bias current is significantly lower in TLV2460 (1.3 nA versus 50 nA); (4) Supply current is lower in TLV2460 (550 µA versus 1.3 mA); (5) Output current is lower in TLV2460 (80 mA versus 125 mA); (6) Maximum supply voltage is reduced in TLV2460 (6 V versus 6.5 V); (7) Operating temperature range is extended in TLV2460 (-40°C to 125°C versus -40°C to 85°C); (8) Package width differs (8-TSSOP 0.173" versus 8-MSOP 0.118").

Q: Are TLV2460 devices pin-compatible with MAX4166EUA?

A: Both devices use 8-pin TSSOP packaging with identical pin assignments for standard operational amplifier configurations. Pin compatibility is maintained. However, physical package dimensions differ (0.173" width for TLV2460 versus 0.118" width for MAX4166EUA), requiring PCB layout verification for space-constrained applications.

Q: What is the impact of the reduced maximum supply voltage in TLV2460 devices?

A: TLV2460 series devices operate with a maximum supply voltage of 6 V compared to 6.5 V for MAX4166EUA. Applications requiring operation at 6.5 V must verify circuit functionality at the reduced maximum voltage or select MAX4166EUA+. Most general-purpose amplifier applications operate within the 6 V maximum of TLV2460 devices without modification.

Q: Which substitute part is recommended for automotive applications?

A: TLV2460AQPWRG4Q1 and TLV2460QPWRG4Q1 are both qualified to AEC-Q100 automotive standards. These parts are appropriate for automotive-grade applications. MAX4166EUA+ does not carry automotive qualification.

Q: What is the significance of the lower input bias current in TLV2460 devices?

A: The TLV2460 series exhibits input bias current of 1.3 nA compared to 50 nA in MAX4166EUA. This lower bias current reduces input offset drift and improves performance in high-impedance input circuits. For most general-purpose applications, this difference is not critical, but high-impedance sensor interfaces benefit from the improved specification.

Q: Is TLV2460QPWG4 suitable for new designs?

A: No. TLV2460QPWG4 is discontinued at DiGi Electronics and should not be selected for new designs or production planning. TLV2460AQPWRG4Q1 or TLV2460QPWRG4Q1 are the active alternatives.

Q: What compliance certifications apply to each substitute part?

A: MAX4166EUA+ is ROHS3 compliant. TLV2460AQPWRG4Q1 and TLV2460QPWRG4Q1 are ROHS3 compliant and AEC-Q100 qualified. All parts are REACH unaffected and classified as EAR99 for export control purposes.