LM2902KDBRE4 Equivalent & Substitute Parts

Part Overview

The LM2902KDBRE4 is a general purpose operational amplifier integrated circuit manufactured by Texas Instruments, featuring four independent amplifier circuits in a 14-SSOP surface mount package. This device is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The LM2902 series provides low-power, general-purpose amplification suitable for a wide range of analog signal processing applications.

Substiute Parts

LM2902KDBRE4

Texas InstrumentsIn Stock: 854LM2902KDBRE4 Datasheet

Current PartRFQ

LM2902MT/NOPB

Texas InstrumentsIn Stock: 873LM2902MT/NOPB Datasheet

MFR RecommendedRFQ

LM2902MTX/NOPB

Texas InstrumentsIn Stock: 2934LM2902MTX/NOPB Datasheet

MFR RecommendedRFQ

BA2902FV-E2

Rohm SemiconductorIn Stock: 10315BA2902FV-E2 Datasheet

MFR RecommendedRFQ

LM224PT

STMicroelectronicsIn Stock: 56679LM224PT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM2902KDBRE4 is determined by the following critical parameters:

Functional Equivalence Criteria:

• Four independent general purpose amplifier circuits
• Slew rate, gain bandwidth product, and input bias current characteristics
• Input offset voltage specifications
• Output current capability per channel
• Supply voltage range compatibility (minimum 3V, maximum ≥26V)
• Operating temperature range coverage

Package and Mounting Compatibility:

• Surface mount technology requirement
• Pin count and footprint compatibility (14-pin configurations)
• Physical dimensions suitable for PCB integration

Compliance and Certification:

• RoHS3 compliance
• MSL Level 1 rating
• REACH unaffected status

The substitute parts listed below maintain functional compatibility with the LM2902KDBRE4 while offering active product status and improved availability. Substitution is valid when the substitute part meets or exceeds the electrical specifications of the original part within the defined operating parameters.

Parameter Comparison

Engineering Selection Recommendations

LM2902MT/NOPB (Texas Instruments, Tube Packaging)

This part is a direct functional equivalent from the same manufacturer, classified as active product status. It maintains the four-circuit general purpose amplifier configuration with LinCMOS™ series technology. The 14-TSSOP package offers a narrower footprint (0.173" vs. 0.209") compared to the original SSOP variant. Supply voltage range extends to 32V, exceeding the original 26V maximum. Input offset voltage is improved to 2mV. Operating temperature range is -40°C to 85°C, which is narrower than the original -40°C to 125°C specification. This substitute is suitable for applications where the reduced temperature range is acceptable and PCB layout accommodates the smaller package footprint.

LM2902MTX/NOPB (Texas Instruments, Tape & Reel Packaging)

This part is functionally identical to LM2902MT/NOPB with identical electrical specifications. The primary distinction is packaging format: Tape & Reel (TR) versus Tube. Inventory availability is significantly higher (2900 Pcs vs. 797 Pcs). This configuration is recommended for high-volume production runs and automated assembly processes. All electrical and compliance characteristics remain equivalent to LM2902MT/NOPB.

BA2902FV-E2 (Rohm Semiconductor, Cut Tape & Digi-Reel® Packaging)

This part is manufactured by Rohm Semiconductor and provides four general purpose amplifier circuits in a 14-LSSOP package. Key distinctions include lower slew rate (0.2V/µs vs. 0.5V/µs) and reduced gain bandwidth product (500 kHz vs. 1.2 MHz). Supply current is significantly lower at 700µA. Operating temperature range extends to 125°C, matching the original specification. Supply voltage maximum is 32V. Input bias current and offset voltage match the original part. This substitute is suitable for low-power applications where reduced slew rate and bandwidth are acceptable. Inventory availability is highest among all substitutes (10300 Pcs).

LM224PT (STMicroelectronics, Cut Tape & Digi-Reel® Packaging)

This part is manufactured by STMicroelectronics and provides four general purpose amplifier circuits in a 14-TSSOP package. Slew rate is 0.4V/µs and gain bandwidth product is 1.3 MHz, both comparable to the original specification. Operating temperature range is -40°C to 105°C. Supply voltage maximum is 30V. Input bias current and offset voltage match the original part. Output current per channel is 40mA, exceeding the original 30mA. This substitute offers balanced performance characteristics with high inventory availability (56590 Pcs) and is suitable for general purpose applications requiring active product status and broad supply voltage compatibility.

Frequently Asked Questions (FAQ)

Q: Can LM2902MT/NOPB be used as a direct replacement for LM2902KDBRE4 in existing PCB designs?

A: LM2902MT/NOPB is functionally equivalent but uses a different package footprint (14-TSSOP vs. 14-SSOP). The pin configuration is identical, but the physical dimensions differ. PCB layout modification is required. The narrower 14-TSSOP package (0.173" width vs. 0.209") may require trace routing adjustments. Electrical compatibility is confirmed across all specified parameters within the operating temperature range of -40°C to 85°C.

Q: What is the difference between LM2902MT/NOPB and LM2902MTX/NOPB?

A: Both parts are electrically and functionally identical. The difference is packaging format: LM2902MT/NOPB is supplied in Tube packaging, while LM2902MTX/NOPB is supplied in Tape & Reel format. Selection depends on assembly process requirements. Tape & Reel format is preferred for automated pick-and-place assembly. Tube format is suitable for manual assembly or lower-volume applications.

Q: Is BA2902FV-E2 suitable for high-speed signal processing applications?

A: BA2902FV-E2 has a slew rate of 0.2V/µs and gain bandwidth product of 500 kHz, both lower than the original LM2902KDBRE4 (0.5V/µs and 1.2 MHz respectively). This part is optimized for low-power operation and is not recommended for applications requiring high-speed signal processing or wide bandwidth amplification.

Q: Which substitute part has the best inventory availability?

A: LM224PT from STMicroelectronics has the highest inventory availability at 56590 Pcs. BA2902FV-E2 from Rohm Semiconductor is second with 10300 Pcs. Both parts are suitable for immediate procurement without extended lead times.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all substitute parts listed (LM2902MT/NOPB, LM2902MTX/NOPB, BA2902FV-E2, and LM224PT) are RoHS3 compliant with MSL Level 1 rating and REACH unaffected status, matching the compliance profile of the original LM2902KDBRE4.

Q: What is the maximum operating temperature for each substitute part?

A: LM2902MT/NOPB and LM2902MTX/NOPB operate to 85°C. BA2902FV-E2 operates to 125°C, matching the original part. LM224PT operates to 105°C. Selection depends on application thermal requirements.

Q: Can LM224PT replace LM2902KDBRE4 in applications requiring extended temperature range?

A: LM224PT operates from -40°C to 105°C, which is narrower than the original -40°C to 125°C range. For applications requiring full -40°C to 125°C operation, BA2902FV-E2 is the appropriate substitute. LM224PT is suitable for applications with maximum operating temperature of 105°C or lower.

Q: What are the key electrical differences between BA2902FV-E2 and LM224PT?

A: BA2902FV-E2 has lower slew rate (0.2V/µs vs. 0.4V/µs) and lower gain bandwidth product (500 kHz vs. 1.3 MHz). BA2902FV-E2 has significantly lower supply current (700µA vs. 1.5mA), making it suitable for battery-powered or low-power applications. LM224PT offers higher performance metrics and is suitable for general purpose applications with moderate bandwidth requirements.