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LM2902HD Equivalent & Substitute Parts
Part Overview
The LM2902HD is a general-purpose operational amplifier integrated circuit manufactured by STMicroelectronics, configured as a 4-circuit push-pull amplifier in a 14-SOIC surface mount package. The device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement.
The LM2902HD operates across a wide supply voltage range of 3V to 30V and maintains functionality over an extended temperature range of -40°C to 150°C. With a slew rate of 0.4V/µs and gain bandwidth product of 1.3 MHz, this component serves applications requiring moderate-speed amplification with general-purpose characteristics.
Due to its obsolete status, alternative components with compatible electrical and mechanical specifications are required for new designs and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Push-Pull | — |
| Slew Rate | 0.4 | V/µs |
| Gain Bandwidth Product | 1.3 | MHz |
| Current - Input Bias | 20 | nA |
| Voltage - Input Offset | 2 | mV |
| Current - Output / Channel | 20 | mA |
| Voltage - Supply Span (Min) | 3 | V |
| Voltage - Supply Span (Max) | 30 | V |
| Operating Temperature Range | -40 to 150 | °C |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitution of the LM2902HD is determined by alignment across the following critical parameters:
Primary Substitution Criteria:
- Amplifier Type: General Purpose
- Number of Circuits: 4
- Package / Case: 14-SOIC with 0.154" (3.90mm) width
- Mounting Type: Surface Mount
- Voltage Supply Range: Minimum 3V, Maximum ≥30V
- Operating Temperature: Support for -40°C to 125°C or higher
- RoHS Compliance: ROHS3 Compliant
Secondary Performance Parameters:
- Slew Rate: 0.3V/µs to 0.5V/µs
- Gain Bandwidth Product: 700 kHz to 1.3 MHz
- Current - Input Bias: 20 nA (±10 nA tolerance acceptable)
- Voltage - Input Offset: 1 mV to 3 mV
- Current - Output / Channel: 20 mA to 40 mA
Substitute parts must maintain compatibility with the 14-SOIC package footprint and support the full supply voltage range of the original device. Parts with active product status and unlimited moisture sensitivity level (MSL) are preferred for long-term availability.
Parameter Comparison
| Parameter | LM2902HD (Main) | BA2902SF-E2 | LM2902AQS14-13 | LM2902D | LM2902DR | LM2902DR2G | LM2902DRG3 | LM2902EDR2G | LM2902KAVQDR | LM2902KAVQDRQ1 |
|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Rohm Semiconductor | Diodes Incorporated | onsemi | Rohm Semiconductor | onsemi | Texas Instruments | onsemi | Texas Instruments | Texas Instruments |
| Amplifier Type | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose |
| Number of Circuits | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Slew Rate (V/µs) | 0.4 | 0.2 | 0.3 | 0.5 | 0.3 | — | 0.5 | — | 0.5 | 0.5 |
| Gain Bandwidth Product (MHz) | 1.3 | 0.5 | 0.7 | 1.2 | 1.2 | 1.0 | 1.2 | — | 1.2 | 1.2 |
| Current - Input Bias (nA) | 20 | 20 | 20 | 20 | 20 | 90 | 20 | 90 | 20 | 20 |
| Voltage - Input Offset (mV) | 2 | 2 | 2 | 3 | 1 | 2 | 3 | 2 | 3 | 3 |
| Current - Output / Channel (mA) | 20 | 30 | 40 | 30 | 30 | 40 | 30 | 40 | 30 | 60 |
| Voltage - Supply Span Min (V) | 3 | 3 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Voltage - Supply Span Max (V) | 30 | 32 | 36 | 26 | 32 | 32 | 26 | 32 | 30 | 32 |
| Operating Temperature (°C) | -40 to 150 | -40 to 105 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 105 | -40 to 125 | -40 to 105 | -40 to 125 | -40 to 125 |
| Package / Case | 14-SOIC (0.154", 3.90mm) | 14-SOIC (0.173", 4.40mm) | 14-SOIC (0.154", 3.90mm) | 14-SOIC (0.154", 3.90mm) | 14-SOIC (0.154", 3.90mm) | 14-SOIC (0.154", 3.90mm) | 14-SOIC (0.154", 3.90mm) | 14-SOIC (0.154", 3.90mm) | 14-SOIC (0.154", 3.90mm) | 14-SOIC (0.154", 3.90mm) |
| Product Status | Obsolete | Active | Active | Obsolete | Obsolete | Active | Last Time Buy | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 1 (Unlimited) | 1 (Unlimited) | — | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Automotive Grade / AEC-Q100 | — | — | Yes | Yes | — | — | — | — | Yes | Yes |
Engineering Selection Recommendations
Tier 1 - Preferred Substitutes (Active Status, Full Compliance):
LM2902KAVQDRQ1 (Texas Instruments) and LM2902KAVQDR (Texas Instruments) are the primary recommended substitutes. Both devices maintain active product status, ROHS3 compliance, and AEC-Q100 automotive qualification. These parts support the full supply voltage range (3V to 32V), operate across -40°C to 125°C, and provide equivalent electrical performance with slew rate of 0.5V/µs and gain bandwidth product of 1.2 MHz. The LM2902KAVQDRQ1 variant offers increased output current capability (60 mA per channel) compared to the original 20 mA specification. Both are packaged in 14-SOIC (0.154", 3.90mm) format with unlimited MSL rating.
LM2902DR2G (onsemi) and LM2902EDR2G (onsemi) provide active alternatives with equivalent package footprint and supply voltage range. These devices support -40°C to 105°C operation and deliver 40 mA output current per channel. Unlimited MSL rating ensures long-term storage compatibility.
LM2902AQS14-13 (Diodes Incorporated) is an active, AEC-Q100 qualified alternative with extended supply voltage range (2V to 36V) and operating temperature to 125°C. This device provides 40 mA output current per channel and maintains ROHS3 compliance with unlimited MSL.
Tier 2 - Secondary Substitutes (Obsolete or Limited Availability):
LM2902DRG3 (Texas Instruments) carries Last Time Buy status and should be considered only for legacy system support. This device meets electrical specifications but has restricted future availability.
LM2902D (onsemi) and LM2902DR (Rohm Semiconductor) are obsolete components. LM2902D is RoHS non-compliant and unsuitable for new designs. LM2902DR maintains ROHS3 compliance but lacks active production status.
BA2902SF-E2 (Rohm Semiconductor) is an active alternative but features a wider 14-SOIC package (0.173", 4.40mm) compared to the original 0.154" width, requiring PCB layout verification. This device operates to 105°C maximum and provides reduced slew rate (0.2V/µs) and gain bandwidth product (500 kHz).
Package Compatibility Note:
The BA2902SF-E2 package width of 0.173" (4.40mm) differs from the standard 0.154" (3.90mm) footprint of the LM2902HD and all other recommended substitutes. Direct PCB footprint compatibility cannot be assumed without layout review.
Compliance and Certification:
All Tier 1 recommended substitutes maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), eliminating the MSL 3 (168-hour) constraint of the original LM2902HD. Automotive-qualified variants (LM2902KAVQDRQ1, LM2902KAVQDR, LM2902AQS14-13) carry AEC-Q100 certification for applications requiring automotive-grade components.
Frequently Asked Questions (FAQ)
Q: Can the LM2902KAVQDRQ1 directly replace the LM2902HD in existing designs?
A: The LM2902KAVQDRQ1 is electrically and mechanically compatible with the LM2902HD. Both devices use the 14-SOIC (0.154", 3.90mm) package, support 3V to 30V+ supply voltage, and operate across -40°C to 125°C. The primary difference is increased output current capability (60 mA vs. 20 mA per channel), which does not create compatibility issues. PCB layout and footprint remain identical.
Q: What is the significance of the MSL rating difference between LM2902HD (MSL 3) and substitute parts (MSL 1)?
A: MSL 3 (168 hours) indicates the LM2902HD requires reflow soldering within 168 hours of package opening. MSL 1 (Unlimited) substitutes have no time restriction after package opening, providing greater manufacturing flexibility and reduced risk of moisture-induced defects during assembly. This represents an improvement over the original specification.
Q: Why does the BA2902SF-E2 have a different package width?
A: The BA2902SF-E2 uses a 14-SOP package variant with 0.173" (4.40mm) width, compared to the standard 0.154" (3.90mm) SOIC width of the LM2902HD. This dimensional difference may affect PCB footprint compatibility. Verify PCB layout spacing and pad dimensions before selecting this substitute.
Q: Are all recommended Tier 1 substitutes suitable for automotive applications?
A: LM2902KAVQDRQ1, LM2902KAVQDR, and LM2902AQS14-13 carry AEC-Q100 automotive qualification. LM2902DR2G and LM2902EDR2G do not have automotive certification but are suitable for industrial and commercial applications. Confirm automotive qualification requirements for your specific application.
Q: What is the difference between LM2902KAVQDR and LM2902KAVQDRQ1?
A: Both devices are electrically equivalent with identical slew rate (0.5V/µs), gain bandwidth product (1.2 MHz), and operating temperature range (-40°C to 125°C). The primary difference is output current capability: LM2902KAVQDR provides 30 mA per channel, while LM2902KAVQDRQ1 provides 60 mA per channel. Select based on output current requirements of your circuit.
Q: Can I use LM2902DRG3 for new production designs?
A: LM2902DRG3 carries Last Time Buy status, indicating limited remaining inventory and no future production. This part is suitable only for legacy system support or short-term production runs. For new designs, select from Tier 1 active alternatives to ensure long-term supply continuity.
Q: How do the electrical performance characteristics compare between substitute options?
A: Slew rate ranges from 0.2V/µs (BA2902SF-E2) to 0.5V/µs (LM2902KAVQDR, LM2902KAVQDRQ1, LM2902DRG3, LM2902D). Gain bandwidth product ranges from 500 kHz (BA2902SF-E2) to 1.3 MHz (LM2902HD). For applications requiring the original 0.4V/µs slew rate and 1.3 MHz bandwidth, LM2902KAVQDR and LM2902KAVQDRQ1 provide the closest performance match at 0.5V/µs and 1.2 MHz respectively.
Q: What supply voltage range should I verify for my application?
A: The LM2902HD supports 3V to 30V. Most Tier 1 substitutes support 3V to 32V or 3V to 36V, providing equal or extended range. LM2902AQS14-13 offers the widest range (2V to 36V). Confirm your circuit design operates within the selected substitute's specified supply voltage limits.
Q: Is RoHS compliance mandatory for all substitute selections?
A: ROHS3 compliance is standard across all recommended Tier 1 substitutes. LM2902D (onsemi) is RoHS non-compliant and unsuitable for applications requiring RoHS certification. Verify compliance requirements for your end-use application and regulatory jurisdiction.
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