MAX4237AESA+ Equivalent & Substitute Parts

Part Overview

The MAX4237AESA+ is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, designed for rail-to-rail applications in 8-SOIC surface mount packaging. This device is classified as obsolete, making identification of functionally equivalent substitute components essential for ongoing design support and production continuity. The MAX4237AESA+ operates across a 2.4V to 5.5V supply range with a slew rate of 1.3V/µs and gain bandwidth product of 7.5 MHz, serving applications requiring low input bias current (1 pA) and minimal input offset voltage (5 µV).

Substiute Parts

MAX4237AESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2032MAX4237AESA+ Datasheet

Current PartRFQ

MAX4237AESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2032MAX4237AESA+ Datasheet

DirectRFQ

OPA341UA

Burr BrownIn Stock: 6764OPA341UA Datasheet

MFR RecommendedRFQ

TLV4110ID

Texas InstrumentsIn Stock: 1242TLV4110ID Datasheet

MFR RecommendedRFQ

TLV4110IDR

Texas InstrumentsIn Stock: 23842TLV4110IDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4237AESA+ is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Package type: 8-SOIC surface mount form factor (0.154", 3.90mm width)
• Output configuration: Rail-to-rail output capability
• Amplifier classification: General-purpose single-circuit topology
• Supply voltage range: Minimum 2.4V to 5.5V maximum compatibility
• Operating temperature: Functional overlap within specified ranges

Secondary Compatibility Parameters:

• Slew rate performance (1.3V/µs baseline)
• Gain bandwidth product (7.5 MHz baseline)
• Input bias current characteristics (1 pA baseline)
• Input offset voltage specifications (5 µV baseline)
• Supply current consumption (350µA baseline)

Substitute parts must maintain the 8-SOIC package footprint to ensure PCB-level compatibility without layout redesign. All identified substitutes operate as single-circuit general-purpose amplifiers with rail-to-rail output stages. Supply voltage range overlap is mandatory; parts with extended or reduced ranges are included where the MAX4237AESA+ operating window (2.4V–5.5V) falls within the substitute's specified range.

Parameter Comparison

Engineering Selection Recommendations

OPA341UA (Burr Brown / Texas Instruments)

The OPA341UA is an active product offering extended operating temperature range (-55°C to 125°C) compared to the MAX4237AESA+. This device provides superior slew rate performance (6.0V/µs versus 1.3V/µs) and lower input bias current (0.6 pA versus 1 pA). However, input offset voltage is significantly higher at 2 mV compared to 5 µV on the original part. Supply current consumption is elevated at 750µA versus 350µA. The OPA341UA maintains 8-SOIC packaging and rail-to-rail output configuration. This substitute is suitable for applications where extended temperature operation and faster slew rate are beneficial, provided the higher input offset voltage and supply current are acceptable within system design margins.

TLV4110ID (Texas Instruments)

The TLV4110ID is designated as Last Time Buy status, indicating limited future availability. This device operates within the MAX4237AESA+ supply voltage window (2.5V–6.0V) and maintains 8-SOIC surface mount packaging. The TLV4110ID exhibits lower input bias current (0.3 pA) and reduced input offset voltage (175 µV) relative to the original part. Slew rate is marginally higher at 1.57V/µs. Operating temperature range extends to 125°C maximum. Supply current consumption is elevated at 700µA. RoHS3 compliance and MSL 1 rating are maintained. This substitute is appropriate for designs requiring lower input bias current characteristics, with the understanding that Last Time Buy status limits long-term procurement viability.

TLV4110IDR (Texas Instruments)

The TLV4110IDR is the active production variant of the TLV4110ID, differentiated by packaging format (Cut Tape & Digi-Reel® versus Tube). Electrical specifications are identical to TLV4110ID. This device is currently in active production with substantial inventory availability (23,829 Pcs), providing superior supply chain continuity compared to the obsolete MAX4237AESA+. The TLV4110IDR maintains 8-SOIC footprint compatibility, rail-to-rail output, and single-circuit topology. RoHS3 compliance and MSL 1 rating are confirmed. This substitute is the preferred selection for new designs and production continuity, offering active product status with equivalent electrical performance to TLV4110ID.

Frequently Asked Questions (FAQ)

Q: Can the MAX4237AESA+ be directly replaced with OPA341UA without PCB modifications?

A: Yes, direct PCB-level substitution is possible. Both devices utilize identical 8-SOIC (0.154", 3.90mm width) surface mount packaging. Pin-to-pin compatibility is maintained for the 8-pin SOIC footprint. However, circuit performance will differ due to higher input offset voltage (2 mV versus 5 µV) and increased supply current consumption (750µA versus 350µA). System-level validation is required to confirm performance acceptability.

Q: What is the primary difference between TLV4110ID and TLV4110IDR?

A: TLV4110ID and TLV4110IDR are electrically identical devices with identical 8-SOIC packaging and pin configuration. The distinction is packaging format: TLV4110ID is supplied in Tube packaging, while TLV4110IDR is supplied in Cut Tape & Digi-Reel® format. TLV4110IDR is the active production variant with significantly higher inventory availability (23,829 Pcs versus 1,140 Pcs for TLV4110ID). For new designs and ongoing production, TLV4110IDR is the recommended selection.

Q: Why is the MAX4237AESA+ classified as obsolete?

A: The MAX4237AESA+ is designated obsolete by the manufacturer, indicating end-of-life status and discontinued production. Existing inventory may be available through authorized distributors, but long-term supply cannot be assured. Designs currently using this device should transition to active substitute parts to ensure production continuity and future component availability.

Q: Are all substitute parts RoHS3 compliant?

A: TLV4110ID and TLV4110IDR are confirmed RoHS3 compliant. OPA341UA RoHS compliance status is not specified in available documentation. For applications requiring mandatory RoHS3 compliance verification, TLV4110IDR is the recommended selection.

Q: What is the impact of higher input offset voltage in OPA341UA?

A: The OPA341UA exhibits 2 mV input offset voltage compared to 5 µV in the MAX4237AESA+. This 400-fold increase may impact precision analog circuits requiring offset nulling or calibration. Applications with relaxed offset voltage tolerance (instrumentation, general signal conditioning) are less affected. Precision measurement circuits should evaluate offset voltage impact on system accuracy before substitution.

Q: Can TLV4110ID be used in new production designs?

A: TLV4110ID is designated Last Time Buy status, indicating limited future availability. While currently available (1,140 Pcs inventory), this status signals approaching end-of-life. New production designs should utilize TLV4110IDR (active status, 23,829 Pcs inventory) to ensure long-term supply chain viability and avoid future redesign requirements.

Q: What are the moisture sensitivity implications for these devices?

A: MAX4237AESA+, TLV4110ID, and TLV4110IDR all carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. These devices do not require special moisture control during storage, handling, or assembly. OPA341UA moisture sensitivity level is not specified in available documentation.

Q: Are there pin-to-pin compatibility differences between substitute parts?

A: All identified substitute parts (OPA341UA, TLV4110ID, TLV4110IDR) maintain 8-SOIC packaging with identical pin configuration to the MAX4237AESA+. Direct PCB-level substitution is possible without layout modifications. Pin-to-pin compatibility is confirmed across all devices.