LMP2015MF/NOPB Equivalent & Substitute Parts

Part Overview

The LMP2015MF/NOPB 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 single-circuit applications requiring low input offset voltage and minimal input bias current. The product is currently classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design requirements and procurement needs.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Slew Rate	4	V/µs
Gain Bandwidth Product	3	MHz
Current - Input Bias	3	pA
Voltage - Input Offset	0.12	µV
Current - Supply	930	µA
Current - Output / Channel	17	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	5.25	V
Operating Temperature Range	-40 to 125	°C
Package / Case	SC-74A, SOT-753	—
Supplier Device Package	SOT-23-5	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the LMP2015MF/NOPB is determined by the following critical parameters:

Package Compatibility: All substitute parts must use SOT-23-5 surface mount packaging (SC-74A, SOT-753 case designation) to ensure mechanical and electrical compatibility with existing PCB layouts.

Single Circuit Configuration: The main part contains one operational amplifier circuit. Substitute parts must maintain this single-circuit topology.

Supply Voltage Range: The LMP2015MF/NOPB operates across 2.7 V to 5.25 V. Substitute parts must support this voltage range or a compatible superset range to function in the same power supply environment.

Operating Temperature: The device operates from -40°C to 125°C. Substitute parts must support this full temperature range, with the exception of the NCS2003ASN2T1G, which operates to 85°C and is therefore limited to applications not requiring the full upper temperature specification.

Functional Classification: Substitute parts are grouped into two categories: general purpose amplifiers (LMV321LILT, NCS2003ASN2T1G) and zero-drift amplifiers (LMP2021MF/NOPB, AD8628ARTZ-REEL7, AD8628WARTZ-R7). Zero-drift variants offer superior input offset voltage performance but with different electrical characteristics.

Compliance Requirements: All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory alignment with the original component.

Parameter Comparison

Parameter	LMP2015MF/NOPB	LMP2021MF/NOPB	AD8628ARTZ-REEL7	AD8628WARTZ-R7	LMV321LILT	NCS2003ASN2T1G
Manufacturer	Texas Instruments	Texas Instruments	Analog Devices Inc.	Analog Devices Inc.	STMicroelectronics	onsemi
Amplifier Type	General Purpose	Zero-Drift	Zero-Drift	Zero-Drift	General Purpose	General Purpose
Number of Circuits	1	1	1	1	1	1
Output Type	Rail-to-Rail	—	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	4	2.6	1	1	0.7	12.5
Gain Bandwidth Product (MHz)	3	5	2.5	2.5	1.3	7
Current - Input Bias (pA)	3	25	30	30	27000	1
Voltage - Input Offset (µV)	0.12	0.4	1	1	1000	500
Current - Supply (µA)	930	1100	850	850	130	300
Current - Output / Channel (mA)	17	50	30	30	70	96
Voltage - Supply Span Min (V)	2.7	2.2	2.7	2.7	2.7	1.7
Voltage - Supply Span Max (V)	5.25	5.5	5	5	5.5	5.5
Operating Temperature (°C)	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 85
Package / Case	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SOT-23-5 Thin, TSOT-23-5
Supplier Device Package	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5	5-TSOP
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

LMP2021MF/NOPB (Texas Instruments): This zero-drift amplifier from the same manufacturer series provides superior input offset voltage performance (0.4 µV versus 0.12 µV) while maintaining active product status. The higher gain bandwidth product (5 MHz) and increased output current capability (50 mA) support applications requiring enhanced performance. Supply voltage range extends to 5.5 V maximum, providing broader compatibility. This part is recommended for designs prioritizing offset voltage stability and higher bandwidth requirements.

AD8628ARTZ-REEL7 and AD8628WARTZ-R7 (Analog Devices Inc.): Both variants are zero-drift amplifiers with identical electrical specifications. The AD8628WARTZ-R7 includes automotive-grade qualification, suitable for temperature-critical applications. These parts maintain rail-to-rail output and full temperature range operation (-40°C to 125°C). Lower slew rate (1 V/µs) and reduced gain bandwidth product (2.5 MHz) compared to the original part require verification for time-sensitive signal processing applications. Supply voltage maximum is limited to 5 V, which is compatible with the original 5.25 V specification in most practical applications.

LMV321LILT (STMicroelectronics): This general purpose amplifier maintains functional equivalence with the original part through identical single-circuit, rail-to-rail configuration. Significantly lower supply current (130 µA versus 930 µA) provides power efficiency benefits. However, substantially higher input bias current (27 nA versus 3 pA) and input offset voltage (1 mV versus 0.12 µV) limit suitability to applications with relaxed precision requirements. Reduced slew rate (0.7 V/µs) and gain bandwidth product (1.3 MHz) indicate slower signal response. This part is suitable for low-power, non-precision applications.

NCS2003ASN2T1G (onsemi): This general purpose amplifier offers the highest slew rate (12.5 V/µs) and gain bandwidth product (7 MHz) among all substitutes, supporting high-speed signal processing. Lowest input bias current (1 pA) and moderate input offset voltage (500 µV) provide good precision characteristics. However, the maximum operating temperature is limited to 85°C, restricting use in applications requiring the full -40°C to 125°C range. Minimum supply voltage extends to 1.7 V, enabling ultra-low-power applications. This part is suitable for high-speed, temperature-limited designs.

All substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring regulatory and environmental compatibility with the original component.

Frequently Asked Questions (FAQ)

Q: Can the LMP2021MF/NOPB directly replace the LMP2015MF/NOPB in existing designs?

A: Direct replacement is mechanically and electrically feasible due to identical SOT-23-5 packaging and compatible supply voltage range. However, the LMP2021MF/NOPB is a zero-drift amplifier with different input bias current (25 pA versus 3 pA) and slew rate (2.6 V/µs versus 4 V/µs). Circuit performance will differ; designs must be re-evaluated for offset voltage stability and bandwidth requirements.

Q: What is the primary difference between general purpose and zero-drift amplifier substitutes?

A: General purpose amplifiers (LMV321LILT, NCS2003ASN2T1G) use conventional input stage designs with higher input bias currents and offset voltages. Zero-drift amplifiers (LMP2021MF/NOPB, AD8628ARTZ-REEL7, AD8628WARTZ-R7) employ chopper-stabilization or auto-zeroing techniques to achieve significantly lower input offset voltage. Selection depends on application precision requirements and acceptable power consumption trade-offs.

Q: Why does the NCS2003ASN2T1G have a maximum operating temperature of 85°C instead of 125°C?

A: The NCS2003ASN2T1G is specified for a reduced temperature range (-40°C to 85°C) by the manufacturer. Applications requiring operation at temperatures above 85°C must use alternative substitutes that support the full -40°C to 125°C range, such as LMP2021MF/NOPB or AD8628 variants.

Q: Are all substitute parts available in the same packaging as the original LMP2015MF/NOPB?

A: All substitute parts use SOT-23-5 surface mount packaging (SC-74A, SOT-753 case designation), ensuring mechanical compatibility with existing PCB layouts. The NCS2003ASN2T1G is designated as SOT-23-5 Thin (TSOT-23-5), which maintains the same footprint and pin configuration but with reduced package height. Verification with PCB assembly documentation is recommended for height-critical applications.

Q: Which substitute part offers the lowest power consumption?

A: The LMV321LILT has the lowest supply current at 130 µA, compared to 930 µA for the original LMP2015MF/NOPB. This represents a 86% reduction in quiescent current, making it suitable for battery-powered or energy-constrained applications. Trade-offs include higher input bias current and reduced precision.

Q: Can the AD8628WARTZ-R7 be used in automotive applications?

A: The AD8628WARTZ-R7 carries automotive-grade qualification, indicating compliance with automotive temperature cycling and reliability standards. This variant is suitable for automotive applications requiring the full -40°C to 125°C operating range. The standard AD8628ARTZ-REEL7 variant does not carry automotive qualification.

Q: What is the impact of different slew rates on circuit performance?

A: Slew rate determines the maximum rate of output voltage change. The original LMP2015MF/NOPB has a 4 V/µs slew rate. Substitutes with lower slew rates (LMP2021MF/NOPB at 2.6 V/µs, AD8628 variants at 1 V/µs, LMV321LILT at 0.7 V/µs) may introduce signal distortion in high-frequency or fast-transient applications. The NCS2003ASN2T1G with 12.5 V/µs supports faster signal transitions. Application-specific circuit simulation is required to verify compatibility.

Q: Is the LMP2015MF/NOPB still available for procurement?

A: The LMP2015MF/NOPB is classified as obsolete. While 774 pieces are reported in current inventory, long-term availability cannot be guaranteed. Designs should transition to active substitute parts to ensure supply chain continuity and future component availability.

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