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LM2902KPWR Equivalent & Substitute Parts
Part Overview
The LM2902KPWR is a general-purpose operational amplifier integrated circuit manufactured by Rohm Semiconductor. This device contains four independent amplifier circuits in a 14-TSSOP surface-mount package and operates across a supply voltage range of 3V to 26V with an operating temperature range of -40°C to 125°C. The product is currently classified as obsolete, making identification of equivalent and substitute parts essential for design continuity and procurement planning. Substitute parts must maintain functional compatibility through matching amplifier topology, circuit count, package form factor, and critical electrical parameters.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) | — |
| Mounting Type | Surface Mount | — |
| Slew Rate | 0.3 | V/µs |
| Gain Bandwidth Product | 1.2 | MHz |
| Current - Input Bias | 20 | nA |
| Voltage - Input Offset | 3 | mV |
| Current - Supply | 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 |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the LM2902KPWR is determined by strict adherence to the following critical parameters:
Mandatory Matching Criteria:
- Amplifier topology: General-purpose operational amplifier
- Circuit count: Four independent amplifier circuits
- Package form factor: 14-TSSOP surface-mount package with 0.173" width (4.40mm)
- Mounting type: Surface mount
- Supply voltage range: Minimum 3V, maximum 26V or higher
- Operating temperature range: -40°C to 125°C or compatible subset
- RoHS3 compliance and MSL Level 1 rating
Electrical Parameter Compatibility: Substitute parts must maintain electrical characteristics within the following allowances:
- Slew rate: 0.3 V/µs or greater
- Gain bandwidth product: 1.2 MHz or greater
- Input bias current: 20 nA or lower
- Input offset voltage: 3 mV or lower
- Supply current: 1.4 mA or lower per channel
- Output current per channel: 30 mA or greater
Substitute parts are grouped into two categories: direct replacements from active product lines and alternative configurations offering enhanced electrical performance or automotive qualification.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA) | Input Offset (mV) | Supply Current (mA) | Output Current (mA) | Supply Max (V) | Temp Range (°C) | Grade |
|---|---|---|---|---|---|---|---|---|---|---|---|
| LM2902KPWR | Rohm Semiconductor | Obsolete | 0.3 | 1.2 | 20 | 3 | 1.4 | 30 | 26 | -40 to 125 | Commercial |
| LM224APT | STMicroelectronics | Active | 0.4 | 1.3 | 20 | 2 | 1.5 | 40 | 30 | -40 to 105 | Commercial |
| LM224DTBR2G | onsemi | Active | — | 1.0 | 90 | 2 | — | 40 | 32 | -25 to 85 | Commercial |
| LM224PT | STMicroelectronics | Active | 0.4 | 1.3 | 20 | 2 | 1.5 | 40 | 30 | -40 to 105 | Commercial |
| LM2902AWYPT | STMicroelectronics | Active | 0.4 | 1.3 | 20 | 2 | 1.5 | 40 | 30 | -40 to 125 | Automotive |
| LM2902DTBR2G | onsemi | Active | — | 1.0 | 90 | 2 | — | 40 | 32 | -40 to 105 | Commercial |
| LM2902KAVQPWR | Texas Instruments | Active | 0.5 | 1.2 | 20 | 3 | 1.4 | 30 | 30 | -40 to 125 | Automotive |
| LM2902KAVQPWRG4Q1 | Texas Instruments | Last Time Buy | 0.5 | 1.2 | 20 | 3 | 1.4 | 60 | 32 | -40 to 125 | Automotive |
| LM2902KAVQPWRQ1 | Texas Instruments | Active | 0.5 | 1.2 | 20 | 3 | 1.4 | 60 | 32 | -40 to 125 | Automotive |
| LM2902KPW | Texas Instruments | Last Time Buy | 0.5 | 1.2 | 20 | 3 | 1.4 | 30 | 26 | -40 to 125 | Commercial |
Engineering Selection Recommendations
Primary Substitutes (Active Product Status):
The LM2902KAVQPWRQ1 (Texas Instruments) is the recommended primary substitute. This part maintains identical electrical specifications to the LM2902KPWR, including slew rate of 0.5 V/µs, gain bandwidth product of 1.2 MHz, input bias current of 20 nA, and input offset voltage of 3 mV. The part operates across -40°C to 125°C and supports supply voltages up to 32V. It carries AEC-Q100 automotive qualification and ROHS3 compliance. Current inventory status is 97,300 units.
The LM2902KAVQPWR (Texas Instruments) provides an alternative with identical electrical performance and automotive qualification. This part is actively produced with 25,300 units in stock.
The LM2902AWYPT (STMicroelectronics) offers enhanced slew rate (0.4 V/µs) and gain bandwidth product (1.3 MHz) while maintaining the full -40°C to 125°C operating range. This part includes automotive qualification and AEC-Q100 certification with 1,115 units available.
Secondary Substitutes (Commercial Grade, Active Status):
The LM224PT and LM224APT (both STMicroelectronics) provide commercial-grade alternatives with improved electrical performance: slew rate of 0.4 V/µs, gain bandwidth product of 1.3 MHz, and output current of 40 mA per channel. These parts operate to -40°C to 105°C and support supply voltages to 30V. LM224PT inventory is 56,590 units; LM224APT inventory is 25,875 units.
Alternative Substitutes (Limited Temperature Range):
The LM224DTBR2G and LM2902DTBR2G (onsemi) are active products with extended supply voltage support (32V maximum). However, these parts operate only to 85°C and 105°C respectively, which restricts their use in applications requiring the full -40°C to 125°C range. Input bias current is elevated at 90 nA.
End-of-Life Alternatives:
The LM2902KPW (Texas Instruments) is classified as Last Time Buy and maintains identical electrical specifications to the LM2902KPWR with 2,492 units remaining in inventory. The LM2902KAVQPWRG4Q1 (Texas Instruments) is also Last Time Buy status with 17,400 units available.
Frequently Asked Questions (FAQ)
Q: Can the LM224 series directly replace the LM2902KPWR?
A: The LM224PT and LM224APT are functionally compatible substitutes. Both are four-channel general-purpose operational amplifiers in 14-TSSOP packages with identical pinouts. However, the operating temperature range is limited to -40°C to 105°C, which is narrower than the LM2902KPWR specification of -40°C to 125°C. Selection depends on application temperature requirements.
Q: What is the difference between LM2902KAVQPWRQ1 and LM2902KAVQPWR?
A: Both parts are manufactured by Texas Instruments with identical electrical specifications and automotive qualification. The primary difference is packaging: LM2902KAVQPWRQ1 is supplied in Cut Tape (CT) & Digi-Reel format with 97,300 units in stock, while LM2902KAVQPWR is supplied in Tape & Reel (TR) format with 25,300 units in stock. Electrical performance and temperature range are identical.
Q: Why do some substitute parts show higher output current ratings?
A: The LM2902KAVQPWRG4Q1 and LM2902KAVQPWRQ1 specify 60 mA output current per channel, compared to 30 mA for the LM2902KPWR. This represents enhanced capability and does not prevent substitution. Applications designed for 30 mA operation will function correctly with parts rated for 60 mA output current.
Q: Are automotive-qualified parts necessary for commercial applications?
A: Automotive qualification (AEC-Q100) is not required for commercial applications. However, automotive-qualified parts such as LM2902KAVQPWRQ1 and LM2902AWYPT undergo additional qualification testing and are suitable for both automotive and commercial use. Selection should be based on application requirements and procurement specifications.
Q: What is the significance of the "Last Time Buy" product status?
A: Parts designated as Last Time Buy, including LM2902KAVQPWRG4Q1 and LM2902KPW, indicate that the manufacturer will discontinue production after current inventory is exhausted. These parts remain functionally equivalent but should not be selected for new long-term production designs. Active status parts are preferred for ongoing production requirements.
Q: Can the LM224DTBR2G be used in applications requiring -40°C to 125°C operation?
A: No. The LM224DTBR2G operates only to 85°C maximum, which does not meet the -40°C to 125°C requirement of the LM2902KPWR. This part is unsuitable for applications requiring the full temperature range. The LM2902DTBR2G extends to 105°C but still does not reach 125°C.
Q: What packaging formats are available for substitute parts?
A: Substitute parts are available in multiple packaging formats: Cut Tape (CT) & Digi-Reel, Tape & Reel (TR), and Tube. All maintain the same 14-TSSOP surface-mount package form factor. Packaging selection depends on production volume and assembly equipment compatibility. The original LM2902KPWR packaging format is not specified in available data.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All substitute parts listed in this reference maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited) rating, matching the environmental compliance of the LM2902KPWR.
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