LMP7715MFX Equivalent & Substitute Parts

Part Overview

The LMP7715MFX is a general-purpose operational amplifier manufactured by Texas Instruments, housed in a SOT-23-5 surface mount package. This device features rail-to-rail output capability and is designed for low-power applications requiring single-supply operation across 1.8V to 5.5V. The LMP7715MFX is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility while meeting current manufacturing and compliance standards.

Substiute Parts

LMP7715MFX

Texas InstrumentsIn Stock: 17727LMP7715MFX Datasheet

Current PartRFQ

LMP7715MFX/NOPB

Texas InstrumentsIn Stock: 5802LMP7715MFX/NOPB Datasheet

DirectRFQ

MCP6021RT-E/OT

Microchip TechnologyIn Stock: 3000125MCP6021RT-E/OT Datasheet

MFR RecommendedRFQ

MCP6021T-E/OT

Microchip TechnologyIn Stock: 10278MCP6021T-E/OT Datasheet

MFR RecommendedRFQ

NCS2003ASN2T1G

onsemiIn Stock: 15377NCS2003ASN2T1G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LMP7715MFX is determined by the following critical parameters:

Primary Compatibility Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 1
• Output Type: Rail-to-Rail
• Package / Case: SOT-23-5 compatible (SC-74A, SOT-753, or TSOT-23-5)
• Mounting Type: Surface Mount
• Operating Temperature Range: Minimum -40°C to 125°C coverage
• Supply Voltage Range: Minimum 1.8V to 5.5V overlap

Secondary Performance Parameters:

• Slew Rate: 11.5V/µs (reference baseline)
• Gain Bandwidth Product: 17 MHz (reference baseline)
• Current - Input Bias: 0.1 pA (reference baseline)
• Voltage - Input Offset: 10 µV (reference baseline)

Substitute parts are grouped into two categories: direct equivalents (identical electrical specifications and active product status) and functional alternatives (compatible electrical parameters with potential performance trade-offs).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitute):

LMP7715MFX/NOPB is the direct equivalent to the obsolete LMP7715MFX. This part maintains identical electrical specifications including slew rate (11.5V/µs), gain bandwidth product (17 MHz), input bias current (0.1 pA), and input offset voltage (10 µV). The primary distinction is product status: LMP7715MFX/NOPB is active and ROHS3 compliant, whereas the original part is obsolete and RoHS non-compliant. Packaging and supply voltage specifications are identical. This substitute requires no circuit redesign and provides full functional compatibility.

Functional Alternatives (Secondary Substitutes):

MCP6021T-E/OT and MCP6021RT-E/OT (Microchip Technology) are functionally compatible alternatives. Both devices maintain rail-to-rail output, single-circuit configuration, and SOT-23-5 packaging. Performance trade-offs include reduced slew rate (7V/µs versus 11.5V/µs), lower gain bandwidth product (10 MHz versus 17 MHz), higher input bias current (1 pA versus 0.1 pA), and higher input offset voltage (500 µV versus 10 µV). Supply voltage minimum is elevated to 2.5V (versus 1.8V). These parts are suitable for applications where the reduced performance specifications remain within design margins. Both are ROHS3 compliant and active products.

NCS2003ASN2T1G (onsemi) offers alternative performance characteristics. Slew rate (12.5V/µs) exceeds the original specification, and output current capability (96 mA) is higher. However, gain bandwidth product (7 MHz) is significantly reduced, and operating temperature maximum is limited to 85°C (versus 125°C). Supply voltage minimum is 1.7V. Package designation is 5-TSOP (TSOT-23-5 variant). This part is ROHS3 compliant and active. Selection is appropriate for applications prioritizing slew rate and output current over bandwidth and temperature range.

Compliance Considerations:

All active substitute parts are ROHS3 compliant and REACH unaffected, addressing regulatory requirements that the obsolete LMP7715MFX does not meet. Moisture sensitivity level (MSL 1, Unlimited) is consistent across all parts.

Frequently Asked Questions (FAQ)

Q: Can LMP7715MFX/NOPB be used as a direct replacement for LMP7715MFX?

A: Yes. LMP7715MFX/NOPB is the direct equivalent with identical electrical specifications and pinout. The primary difference is product status (active versus obsolete) and RoHS compliance. No circuit modifications are required.

Q: What are the performance trade-offs when using MCP6021 series parts?

A: MCP6021T-E/OT and MCP6021RT-E/OT exhibit reduced slew rate (7V/µs versus 11.5V/µs), lower gain bandwidth product (10 MHz versus 17 MHz), higher input bias current (1 pA versus 0.1 pA), and higher input offset voltage (500 µV versus 10 µV). Minimum supply voltage is 2.5V instead of 1.8V. These specifications remain within general-purpose amplifier parameters and are suitable for applications where these performance levels are acceptable.

Q: Is NCS2003ASN2T1G compatible with the LMP7715MFX in all applications?

A: NCS2003ASN2T1G maintains rail-to-rail output and SOT-23-5 package compatibility. However, the maximum operating temperature is limited to 85°C (versus 125°C for LMP7715MFX), and gain bandwidth product is reduced to 7 MHz. Applications requiring full -40°C to 125°C temperature range or higher bandwidth should not use this substitute. Verify that reduced bandwidth and temperature specifications align with circuit requirements.

Q: What packaging considerations apply to these substitutes?

A: LMP7715MFX/NOPB, MCP6021T-E/OT, and MCP6021RT-E/OT use SC-74A and SOT-753 package designations (SOT-23-5 supplier package). NCS2003ASN2T1G uses TSOT-23-5 (5-TSOP supplier package). All are surface mount devices with identical pinout and footprint compatibility. Verify PCB layout compatibility with the specific package variant.

Q: Are all substitute parts RoHS compliant?

A: Yes. LMP7715MFX/NOPB, MCP6021T-E/OT, MCP6021RT-E/OT, and NCS2003ASN2T1G are all ROHS3 compliant. The original LMP7715MFX is RoHS non-compliant. For applications subject to RoHS requirements, substitute parts are mandatory.

Q: Which substitute offers the best performance match to the original LMP7715MFX?

A: LMP7715MFX/NOPB provides the closest performance match with identical specifications. For applications where LMP7715MFX/NOPB is unavailable, NCS2003ASN2T1G offers superior slew rate (12.5V/µs) and output current (96 mA), though with reduced bandwidth (7 MHz) and limited temperature range (-40°C to 85°C).

Q: Can supply voltage range differences affect circuit operation?

A: Yes. MCP6021 series parts require minimum 2.5V supply (versus 1.8V for LMP7715MFX). Applications operating below 2.5V cannot use MCP6021 substitutes. NCS2003ASN2T1G operates at 1.7V minimum, providing broader low-voltage compatibility. Verify circuit supply voltage specifications before part selection.