LM2902PW Equivalent & Substitute Parts

Part Overview

The LM2902PW is a general-purpose operational amplifier manufactured by Texas Instruments, featuring four independent circuits in a 14-TSSOP surface-mount package. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The LM2902PW operates across a wide supply voltage range (3V to 26V) and temperature range (-40°C to 125°C), making it suitable for diverse analog signal processing applications.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	LM2902PW	—
Manufacturer	Texas Instruments	—
Number of Circuits	4	—
Amplifier Type	General Purpose	—
Package / Case	14-TSSOP (0.173", 4.40mm Width)	—
Mounting Type	Surface Mount	—
Slew Rate	0.5	V/µs
Gain Bandwidth Product	1.2	MHz
Current - Input Bias	20	nA
Voltage - Input Offset	3	mV
Current - Supply (x4 Channels)	1.4	mA
Current - Output / Channel	30	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	26	V
Operating Temperature	-40 to 125	°C
Part Status	Obsolete	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the LM2902PW is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

Number of circuits: 4 independent amplifier circuits
Package type: 14-TSSOP surface-mount configuration with 0.173" width (4.40mm)
Supply voltage range: Minimum 3V, maximum ≥26V
Operating temperature range: Must encompass -40°C to 125°C or be compatible with application requirements
Electrical characteristics: Gain bandwidth product, slew rate, input bias current, input offset voltage, output current capability

Substitution Logic: Substitute parts are grouped into two categories based on electrical performance and package compatibility:

Direct Electrical Equivalents (14-TSSOP Package): Parts maintaining identical or superior electrical specifications within the same 14-TSSOP package footprint, supporting the full -40°C to 125°C temperature range.
Compatible Alternatives (14-SSOP-B Package): Parts with functionally equivalent electrical performance in a related 14-LSSOP (14-SSOP-B) package, which shares the same 0.173" width dimension but may have different temperature or performance characteristics.

Parts with active product status are prioritized for new designs, while obsolete alternatives are listed for legacy system support.

Parameter Comparison

Part Number	Manufacturer	Status	Package	GBW (MHz)	Slew Rate (V/µs)	Input Bias (nA)	Input Offset (mV)	Supply Current (mA)	Output Current (mA)	Temp Range (°C)	Supply Max (V)
LM2902PW	Texas Instruments	Obsolete	14-TSSOP	1.2	0.5	20	3	1.4	30	-40 to 125	26
LM2902PWR	Rohm Semiconductor	Obsolete	14-TSSOP-BJ	1.2	0.3	20	3	1.4	30	-40 to 125	26
LM2902MT/NOPB	Texas Instruments	Active	14-TSSOP	1	—	45	2	1.5	40	-40 to 85	32
LM2902MTX/NOPB	Texas Instruments	Active	14-TSSOP	1	—	45	2	1.5	40	-40 to 85	32
LM324MT/NOPB	Texas Instruments	Active	14-TSSOP	1	—	45	2	1.5	40	0 to 70	32
LM324MTX/NOPB	Texas Instruments	Active	14-TSSOP	1	—	45	2	1.5	40	0 to 70	32
BA10324AFV-E2	Rohm Semiconductor	Active	14-LSSOP	0.5	0.2	20	2	0.6	35	-40 to 85	32
BA2902FV-E2	Rohm Semiconductor	Active	14-LSSOP	0.5	0.2	20	2	0.7	30	-40 to 125	32
BA2902SFV-E2	Rohm Semiconductor	Active	14-LSSOP	0.5	0.2	20	2	0.7	30	-40 to 105	32
LM2902DTBR2G	onsemi	Active	14-TSSOP	1	—	90	2	—	40	-40 to 105	32
LM2902PT	Rohm Semiconductor	Obsolete	14-TSSOP-BJ	1.3	0.3	20	1	1	30	-40 to 125	32

Engineering Selection Recommendations

For Active Product Status (Recommended for New Designs):

The LM2902MT/NOPB and LM2902MTX/NOPB from Texas Instruments are the primary active substitutes in the 14-TSSOP package. Both maintain the four-circuit configuration and surface-mount compatibility. The MTX variant is supplied in Cut Tape & Digi-Reel® packaging with higher inventory availability (2900 pcs). These parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

The LM324MT/NOPB and LM324MTX/NOPB variants offer identical electrical performance and packaging but operate within a narrower temperature range (0°C to 70°C). Selection between LM2902 and LM324 series depends on application temperature requirements.

For Extended Temperature Range (-40°C to 125°C):

The BA2902FV-E2 from Rohm Semiconductor maintains the full temperature range of the original LM2902PW in an active product status. This part is supplied in Cut Tape & Digi-Reel® packaging with 10,300 pcs inventory. The 14-LSSOP package shares the same 0.173" width dimension, ensuring PCB footprint compatibility for most applications. Note that gain bandwidth product is reduced to 500 kHz and slew rate is 0.2 V/µs.

For Intermediate Temperature Range (-40°C to 105°C):

The BA2902SFV-E2 from Rohm Semiconductor and LM2902DTBR2G from onsemi both support -40°C to 105°C operation with active product status. The BA2902SFV-E2 is available in higher quantity (9400 pcs) and maintains the same electrical characteristics as BA2902FV-E2.

Compliance and Certification:

All listed substitute parts are ROHS3 compliant with MSL rating of 1 (Unlimited moisture sensitivity). REACH status is unaffected for all alternatives. ECCN classification is EAR99 and HTSUS code is 8542.33.0001 across all parts.

Frequently Asked Questions (FAQ)

Q: Can LM2902MT/NOPB directly replace LM2902PW in existing designs?

A: The LM2902MT/NOPB is electrically compatible and shares the 14-TSSOP package footprint. However, the operating temperature range is limited to -40°C to 85°C compared to the original -40°C to 125°C. Verify that your application does not require operation above 85°C. The maximum supply voltage is increased to 32V, which is compatible with designs rated for 26V maximum.

Q: What is the difference between 14-TSSOP and 14-LSSOP packages?

A: Both packages share the same 0.173" (4.40mm) width dimension and 14-pin configuration, making them compatible for most PCB layouts. The LSSOP variant has slightly different lead geometry. Consult PCB layout guidelines and component datasheets to confirm mechanical compatibility with your specific board design.

Q: Why do some substitute parts have lower gain bandwidth product (500 kHz vs. 1.2 MHz)?

A: The BA10324AFV-E2, BA2902FV-E2, and BA2902SFV-E2 from Rohm Semiconductor feature 500 kHz gain bandwidth product, which is lower than the original LM2902PW specification. These parts are suitable for applications where bandwidth requirements do not exceed 500 kHz. For applications requiring ≥1 MHz bandwidth, select LM2902MT/NOPB, LM2902MTX/NOPB, or LM2902DTBR2G.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all listed substitute parts carry ROHS3 compliance certification. All parts have MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

Q: What is the inventory status for each substitute?

A: LM324MTX/NOPB has the highest inventory (21,068 pcs), followed by LM2902PWR (89,100 pcs). For applications requiring the full -40°C to 125°C temperature range, BA2902FV-E2 (10,300 pcs) and BA2902SFV-E2 (9,400 pcs) are available. Verify current stock levels with your supplier before finalizing procurement decisions.

Q: Can I use LM324 series parts as substitutes for LM2902 series?

A: LM324MT/NOPB and LM324MTX/NOPB are electrically equivalent to LM2902MT/NOPB and LM2902MTX/NOPB. However, the LM324 variants operate within a narrower temperature range (0°C to 70°C). Use LM324 parts only if your application does not require operation below 0°C or above 70°C.

Q: What is the difference between tube and tape & reel packaging?

A: Tube packaging (LM2902PW, LM2902MT/NOPB) is suitable for lower-volume applications and manual assembly. Tape & Reel (TR) and Cut Tape & Digi-Reel® packaging (LM2902MTX/NOPB, LM324MTX/NOPB) are optimized for automated pick-and-place assembly. Select packaging based on your manufacturing process and volume requirements.

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