MAX4123ESA-T Equivalent & Substitute Parts

Part Overview

The MAX4123ESA-T is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-SOIC surface-mount package. This device features rail-to-rail output capability with a 5 MHz gain-bandwidth product and is designed for low-power analog signal processing applications. The MAX4123ESA-T is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity. Active alternatives from both Analog Devices and Texas Instruments are available to maintain functional compatibility in new production and redesign scenarios.

Substiute Parts

MAX4123ESA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 981MAX4123ESA-T Datasheet

Current PartRFQ

MAX4123ESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2249MAX4123ESA+T Datasheet

DirectRFQ

TLV2450AIDR

Texas InstrumentsIn Stock: 5214TLV2450AIDR Datasheet

MFR RecommendedRFQ

TLV2450CD

Texas InstrumentsIn Stock: 1834TLV2450CD Datasheet

MFR RecommendedRFQ

TLV2450ID

Texas InstrumentsIn Stock: 1045TLV2450ID Datasheet

MFR RecommendedRFQ

TLV2460AIDR

Texas InstrumentsIn Stock: 1350TLV2460AIDR Datasheet

MFR RecommendedRFQ

TLV2460CD

Texas InstrumentsIn Stock: 1825TLV2460CD Datasheet

MFR RecommendedRFQ

TLV2460CDR

Texas InstrumentsIn Stock: 2217TLV2460CDR Datasheet

MFR RecommendedRFQ

TLV2460ID

Texas InstrumentsIn Stock: 1169TLV2460ID Datasheet

MFR RecommendedRFQ

TLV2460IDR

Texas InstrumentsIn Stock: 2131TLV2460IDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4123ESA-T is determined by electrical and mechanical compatibility across the following critical parameters:

Mechanical Compatibility: All substitute parts maintain the 8-SOIC surface-mount package with identical 0.154" (3.90mm) width, ensuring direct PCB footprint compatibility without layout modification.

Electrical Compatibility: Substitute parts must support rail-to-rail output operation and operate within the supply voltage range of 2.7 V to 6.5 V. The single-circuit general-purpose amplifier topology is preserved across all alternatives.

Performance Tolerance: Substitutes are grouped by performance tier based on slew rate and gain-bandwidth product. The MAX4123ESA-T operates at 2 V/µs slew rate and 5 MHz bandwidth. Substitute parts may exhibit different performance characteristics while maintaining functional compatibility for general-purpose applications.

Compliance & Status: All substitute parts are RoHS3 compliant with MSL 1 rating, matching the original part's environmental and regulatory requirements. Product status varies from active to last-time-buy, affecting long-term availability.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Identical Electrical Performance):

MAX4123ESA+T is the direct active equivalent of MAX4123ESA-T. Both parts share identical electrical specifications including 2 V/µs slew rate, 5 MHz gain-bandwidth product, 50 nA input bias current, and 725 µA supply current. The only difference is packaging format: MAX4123ESA+T is supplied in Tape & Reel format versus the original Tube packaging. This part is recommended for immediate substitution in new production and redesign scenarios where the original MAX4123ESA-T is no longer available.

Performance-Tier Alternatives:

The TLV2450 series (TLV2450AIDR, TLV2450CD, TLV2450ID) represents a lower-performance alternative with reduced slew rate (0.11 V/µs) and gain-bandwidth product (220 kHz). These parts are suitable for applications where the original performance specifications exceed system requirements. TLV2450AIDR and TLV2450ID are active products with extended temperature range (-40°C to 125°C), while TLV2450CD is obsolete with limited temperature range (0°C to 70°C).

The TLV2460 series (TLV2460AIDR, TLV2460CD, TLV2460CDR, TLV2460ID, TLV2460IDR) offers performance characteristics closer to the original part, with 1.6 V/µs slew rate and 6.4 MHz gain-bandwidth product. These parts provide higher output current capability (80 mA versus 50 mA) and lower input bias current (1.3 nA versus 50 nA). TLV2460CD and TLV2460CDR are active products suitable for commercial temperature range applications (0°C to 70°C). TLV2460AIDR, TLV2460ID, and TLV2460IDR support extended temperature range (-40°C to 125°C) but are classified as last-time-buy, indicating limited future availability.

Compliance & Regulatory Status:

All substitute parts maintain RoHS3 compliance and MSL 1 moisture sensitivity rating, ensuring compatibility with modern manufacturing and environmental requirements. Selection should prioritize active product status for long-term supply assurance.

Frequently Asked Questions (FAQ)

Q: Can MAX4123ESA+T be used as a direct replacement for MAX4123ESA-T?

A: Yes. MAX4123ESA+T is electrically identical to MAX4123ESA-T with matching slew rate (2 V/µs), gain-bandwidth product (5 MHz), supply current (725 µA), and output current (50 mA). The parts differ only in packaging format: MAX4123ESA+T uses Tape & Reel while MAX4123ESA-T uses Tube. Both are 8-SOIC surface-mount packages with identical PCB footprints. MAX4123ESA+T is active and recommended for new production.

Q: What is the difference between TLV2450 and TLV2460 series substitutes?

A: The TLV2450 series operates at 0.11 V/µs slew rate and 220 kHz gain-bandwidth product, representing significantly reduced performance compared to the original MAX4123ESA-T (2 V/µs, 5 MHz). The TLV2460 series operates at 1.6 V/µs slew rate and 6.4 MHz gain-bandwidth product, providing performance closer to the original part. TLV2460 also offers higher output current (80 mA versus 50 mA) and lower input bias current (1.3 nA versus 50 nA). Selection depends on application performance requirements.

Q: Are all substitute parts available in the same 8-SOIC package?

A: Yes. All substitute parts listed are housed in 8-SOIC surface-mount packages with 0.154" (3.90mm) width, ensuring identical PCB footprint compatibility. Differences exist only in packaging format (Tube versus Tape & Reel), which affects handling and assembly but not electrical or mechanical fit.

Q: What is the significance of "Last Time Buy" status for TLV2460 parts?

A: Last Time Buy status indicates that the manufacturer has announced end-of-life for the product. Customers may place final orders during a specified window before production ceases. Parts with this status should not be selected for new long-term designs. For new designs, prioritize active products such as TLV2460CD or TLV2460CDR.

Q: Can I use TLV2450 parts in applications originally designed for MAX4123ESA-T?

A: TLV2450 parts are mechanically compatible (same 8-SOIC package) and electrically compatible (rail-to-rail output, same supply voltage range). However, the significantly reduced slew rate (0.11 V/µs versus 2 V/µs) and gain-bandwidth product (220 kHz versus 5 MHz) make TLV2450 unsuitable for applications requiring the original performance specifications. Use TLV2450 only when application requirements permit lower bandwidth operation.

Q: What temperature range should I select for extended-temperature applications?

A: For applications requiring operation beyond 0°C to 70°C, select parts with -40°C to 125°C rating: MAX4123ESA+T, TLV2450AIDR, TLV2450ID, TLV2460AIDR, TLV2460ID, or TLV2460IDR. Parts designated with "CD" or "CDR" suffix are limited to 0°C to 70°C commercial temperature range.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant with MSL 1 (unlimited) moisture sensitivity level, matching the environmental and regulatory compliance of the original MAX4123ESA-T.