LP2902M Equivalent & Substitute Parts Reference

Part Overview

The LP2902M is a general-purpose operational amplifier manufactured by Texas Instruments, configured as a 4-circuit integrated circuit in 14-SOIC surface mount packaging. This device is classified as obsolete, with 2501 units currently in stock. The LP2902M operates across a wide supply voltage range (3V to 26V) and temperature range (-40°C to 85°C), making it suitable for general analog signal processing applications.

Due to its obsolete status, identifying equivalent and substitute parts is necessary for design continuity, long-term product support, and supply chain reliability. Substitute parts must maintain functional compatibility while meeting current manufacturing standards and compliance requirements.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Slew Rate	0.05	V/µs
Gain Bandwidth Product	100	kHz
Current - Input Bias	2	nA
Voltage - Input Offset	2	mV
Current - Supply	85	µA
Current - Output / Channel	10	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	26	V
Operating Temperature	-40 to 85	°C
Mounting Type	Surface Mount	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
RoHS Status	RoHS non-compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the LP2902M is determined by the following critical parameters:

Functional Compatibility Parameters:

Number of circuits (must be 4)
Amplifier type (general purpose)
Package type (14-SOIC surface mount)
Supply voltage range (minimum 3V, maximum ≥26V)
Operating temperature range (must cover -40°C to 85°C minimum)

Performance Parameters:

Slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current per channel determine performance-level substitution

Compliance Parameters:

RoHS status, REACH compliance, and moisture sensitivity level affect suitability for specific applications

Substitute parts are grouped into two categories:

Category 1: Direct Functional Equivalents Parts that maintain identical or superior electrical performance while meeting modern compliance standards. These include LP2902M/NOPB (active status, RoHS3 compliant) and LM2902KAVQDRQ1 (active status, automotive qualified).

Category 2: Performance-Enhanced Substitutes Parts with improved electrical characteristics (higher slew rate, gain bandwidth product, output current) that provide enhanced performance while maintaining backward compatibility. These include LM2902D, LM2902DR, LM2902DRG3, LM2902KAVQDR, LM2902KDR, LM2902KNSR, and LM2902KVQDR.

Parameter Comparison

Part Number	Manufacturer	Status	Slew Rate (V/µs)	GBW (kHz)	Input Bias (nA)	Input Offset (mV)	Supply Current (µA)	Output Current (mA)	Temp Range (°C)	Supply Max (V)	RoHS	Package
LP2902M	Texas Instruments	Obsolete	0.05	100	2	2	85	10	-40 to 85	26	Non-compliant	14-SOIC
LP2902M/NOPB	Texas Instruments	Active	0.05	100	2	2	85	10	-40 to 85	26	RoHS3	14-SOIC
LM2902D	onsemi	Obsolete	0.5	1200	20	3	1400	30	-40 to 125	26	Non-compliant	14-SOIC
LM2902DR	Rohm Semiconductor	Obsolete	0.3	1200	20	1	1000	30	-40 to 125	32	RoHS3	14-SOIC
LM2902DRG3	Texas Instruments	Last Time Buy	0.5	1200	20	3	1400	30	-40 to 125	26	RoHS3	14-SOIC
LM2902KAVQDR	Texas Instruments	Active	0.5	1200	20	3	1400	30	-40 to 125	30	RoHS3	14-SOIC
LM2902KAVQDRQ1	Texas Instruments	Active	0.5	1200	20	3	1400	60	-40 to 125	32	RoHS3	14-SOIC
LM2902KDR	Rohm Semiconductor	Obsolete	0.3	700	20	3	1400	30	-40 to 125	26	RoHS3	14-SOIC
LM2902KNSR	Texas Instruments	Last Time Buy	0.5	1200	20	3	1400	30	-40 to 125	26	RoHS3	14-SO
LM2902KVQDR	Rohm Semiconductor	Obsolete	0.3	1200	20	3	1400	30	-40 to 125	26	RoHS3	14-SOIC
LM2902KVQDRG4	Texas Instruments	Last Time Buy	0.5	1200	20	3	1400	30	-40 to 125	30	RoHS3	14-SOIC

Engineering Selection Recommendations

For Direct Replacement (Identical Performance):

LP2902M/NOPB is the primary direct substitute. It maintains identical electrical specifications (0.05V/µs slew rate, 100kHz gain bandwidth product, 2nA input bias current, 2mV input offset voltage, 10mA output current per channel) while offering active product status and RoHS3 compliance. This part is suitable for applications where the original LP2902M specifications are required without modification.

For Enhanced Performance Applications:

LM2902KAVQDRQ1 (Texas Instruments, active status) provides superior performance with 0.5V/µs slew rate, 1.2MHz gain bandwidth product, and 60mA output current per channel. It includes automotive qualification (AEC-Q100) and RoHS3 compliance. Supply voltage range extends to 32V. This part is suitable for applications requiring improved bandwidth and output drive capability.

LM2902KAVQDR (Texas Instruments, active status) offers similar performance to LM2902KAVQDRQ1 with 30mA output current per channel and 30V maximum supply voltage. It includes automotive qualification and RoHS3 compliance.

For Cost-Optimized Substitution:

LM2902DR (Rohm Semiconductor, obsolete status) provides 0.3V/µs slew rate, 1.2MHz gain bandwidth product, and extended supply voltage to 32V with RoHS3 compliance. Despite obsolete status, high inventory (90,223 units) ensures availability.

For Temperature-Extended Applications:

All substitute parts listed extend operating temperature range to -40°C to 125°C, compared to the LP2902M's -40°C to 85°C range, providing additional thermal margin.

Compliance Considerations:

LP2902M is RoHS non-compliant. All substitute parts listed are RoHS3 compliant, meeting current regulatory requirements for new designs and manufacturing.

Frequently Asked Questions (FAQ)

Q1: Can LP2902M/NOPB be used as a direct drop-in replacement for LP2902M?

A: Yes. LP2902M/NOPB maintains identical electrical specifications and 14-SOIC package configuration. The primary difference is active product status and RoHS3 compliance. No circuit modifications are required.

Q2: What is the key difference between LP2902M and LM2902KAVQDRQ1?

A: LM2902KAVQDRQ1 provides enhanced performance: 10× higher slew rate (0.5V/µs vs 0.05V/µs), 12× higher gain bandwidth product (1.2MHz vs 100kHz), 6× higher output current per channel (60mA vs 10mA), and extended operating temperature range (-40°C to 125°C vs -40°C to 85°C). Supply voltage range extends to 32V. These improvements enable use in higher-frequency and higher-current applications while maintaining backward compatibility.

Q3: Are all substitute parts available in the same 14-SOIC package?

A: Primarily yes. All listed substitutes use 14-SOIC (0.154", 3.90mm width) surface mount packaging except LM2902KNSR, which uses 14-SO (0.209", 5.30mm width) packaging. Verify PCB footprint compatibility before selection.

Q4: Which substitute part has the longest supply voltage range?

A: LM2902KAVQDRQ1 and LM2902DR both support maximum supply voltage of 32V, compared to LP2902M's 26V maximum. This provides additional design margin for higher-voltage applications.

Q5: What is the significance of "Last Time Buy" status?

A: Parts designated as "Last Time Buy" (LM2902DRG3, LM2902KNSR, LM2902KVQDRG4) indicate that the manufacturer will discontinue production after a specified date. These parts remain available for a limited period but should not be selected for new long-term designs. Active status parts (LP2902M/NOPB, LM2902KAVQDR, LM2902KAVQDRQ1) are preferred for ongoing production.

Q6: Does automotive qualification matter for non-automotive applications?

A: Automotive-qualified parts (LM2902KAVQDR, LM2902KAVQDRQ1) meet AEC-Q100 standards, which include enhanced reliability testing, extended temperature ranges, and stricter quality control. These parts are suitable for any application requiring high reliability, not only automotive use.

Q7: What is the impact of RoHS compliance on part selection?

A: RoHS3 compliance is mandatory for new designs and manufacturing in most markets. LP2902M is RoHS non-compliant, making it unsuitable for new production. All listed substitutes are RoHS3 compliant, ensuring regulatory compliance and long-term market acceptance.

Q8: Can LM2902KNSR be used interchangeably with other 14-SOIC variants?

A: LM2902KNSR uses 14-SO packaging (0.209" width) instead of standard 14-SOIC (0.154" width). PCB footprints differ. Verify footprint compatibility before substitution. Electrical specifications are compatible with other LM2902 variants.

Q9: Which substitute offers the best balance of performance, compliance, and availability?

A: LM2902KAVQDRQ1 provides optimal balance: active product status, RoHS3 compliance, automotive qualification, highest output current (60mA per channel), extended supply voltage (32V), and high inventory (22,800 units). It is suitable for new designs requiring enhanced performance and long-term supply security.

Q10: Are there any circuit modifications required when substituting LP2902M with performance-enhanced alternatives?

A: No circuit modifications are required. All substitute parts maintain the same pinout, package configuration, and basic functional operation. However, designs may benefit from the enhanced performance characteristics (higher slew rate, bandwidth, output current) without circuit changes. Verify that application requirements do not exceed the original LP2902M specifications before substitution.

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