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LM833DG Equivalent & Substitute Parts
Part Overview
The LM833DG is a dual-channel audio operational amplifier manufactured by onsemi in 8-SOIC surface mount packaging. This component is classified as obsolete, indicating it is no longer in active production. The LM833DG provides audio amplification with a 15 MHz gain bandwidth product and operates across a 10V to 36V supply voltage range. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for new designs and ongoing production requirements. Substitute parts maintain functional compatibility while offering improved availability and active product support.
Substiute Parts
Key Parameters
| Parameter | LM833DG Value | Unit |
|---|---|---|
| Amplifier Type | Audio | — |
| Number of Circuits | 2 | — |
| Slew Rate | 7 | V/µs |
| Gain Bandwidth Product | 15 | MHz |
| Current - Input Bias | 300 | nA |
| Voltage - Input Offset | 300 | µV |
| Current - Supply | 4 | mA |
| Current - Output / Channel | 29 | mA |
| Voltage - Supply Span (Min) | 10 | V |
| Voltage - Supply Span (Max) | 36 | V |
| Operating Temperature | -40 to 85 | °C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Product Status | Obsolete | — |
Substitute Part Grouping Explanation
Substitute parts for the LM833DG are categorized into two groups based on functional and electrical compatibility:
Direct Substitutes (Same Amplifier Type - Audio): Parts that maintain the audio amplifier classification and core electrical characteristics. These parts are selected based on matching or exceeding the following critical parameters: dual-channel configuration, audio amplifier type classification, 8-SOIC or compatible package format, slew rate of 7V/µs or greater, gain bandwidth product of 15 MHz or greater, input bias current of 300 nA or lower, input offset voltage of 300 µV or lower, and supply voltage range encompassing 10V to 36V operation.
Similar Substitutes (Alternative Amplifier Types): Parts that provide functional amplification in dual-channel 8-SOIC packages but differ in amplifier classification (general purpose or J-FET types). These parts are suitable when the specific audio amplifier classification is not a design requirement and when electrical parameters remain compatible with the application.
The substitution logic prioritizes: (1) matching package format and pin count, (2) maintaining or exceeding electrical performance specifications, (3) ensuring supply voltage compatibility, and (4) confirming active product status for long-term availability.
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA) | Input Offset (µV) | Supply Min (V) | Supply Max (V) | Output / Ch (mA) | Temp Range (°C) | Package | Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LM833DG | onsemi | Audio | 7 | 15 | 300 | 300 | 10 | 36 | 29 | -40 to 85 | 8-SOIC | Obsolete |
| LM833DR | Texas Instruments | Audio | 7 | 16 | 300 | 150 | 10 | 36 | 37 | -40 to 85 | 8-SOIC | Active |
| LM833M | National Semiconductor | Audio | 7 | 15 | 500 | 300 | 10 | 30 | 40 | -40 to 85 | 8-SOIC | Active |
| LM833MM/NOPB | Texas Instruments | Audio | 7 | 15 | 500 | 300 | 30 | 30 | 40 | -40 to 85 | 8-VSSOP | Active |
| LM833MX/NOPB | Texas Instruments | Audio | 7 | 15 | 500 | 300 | 10 | 30 | 40 | -40 to 85 | 8-SOIC | Active |
| LM833DT | STMicroelectronics | Audio | 7 | 15 | 300 | 300 | 5 | 30 | 37 | -40 to 105 | 8-SOIC | Active |
| AS358MTR-E1 | Diodes Incorporated | General Purpose | — | — | 20 | 2000 | 3 | 36 | 40 | -40 to 85 | 8-SOIC | Active |
| AS358MTR-G1 | Diodes Incorporated | General Purpose | — | — | 20 | 2000 | 3 | 36 | 40 | -40 to 85 | 8-SOIC | Active |
| BA4560FJ-GE2 | Rohm Semiconductor | General Purpose | 4 | 10 | 50 | 500 | 8 | 30 | 25 | -40 to 85 | 8-SOIC | Not For New Designs |
| LF253DT | STMicroelectronics | J-FET | 16 | 4 | 0.02 | 3000 | 6 | 36 | 40 | -40 to 105 | 8-SOIC | Active |
| LF353DT | STMicroelectronics | J-FET | 16 | 4 | 0.02 | 3000 | 6 | 36 | 40 | 0 to 70 | 8-SOIC | Active |
Engineering Selection Recommendations
Primary Recommendation - Direct Audio Amplifier Substitutes:
The LM833DR (Texas Instruments) is the preferred direct substitute for the LM833DG. This part maintains audio amplifier classification, matches the 8-SOIC package format, and exceeds electrical specifications with a 16 MHz gain bandwidth product and improved 150 µV input offset voltage. The LM833DR is active in production with ROHS3 compliance and REACH unaffected status, ensuring long-term availability and regulatory compliance.
The LM833MX/NOPB (Texas Instruments) provides an alternative direct substitute with identical electrical characteristics to the LM833DG while maintaining active product status. This part is suitable for applications requiring the standard 10V to 30V supply range and offers high inventory availability.
The LM833DT (STMicroelectronics) offers extended operating temperature range (-40°C to 105°C) compared to the LM833DG, making it suitable for applications requiring enhanced thermal performance. This part maintains audio amplifier classification and 8-SOIC packaging with active product status and ROHS3 compliance.
Secondary Recommendation - General Purpose Amplifier Substitutes:
The AS358MTR-E1 and AS358MTR-G1 (Diodes Incorporated) are general purpose dual-channel amplifiers in 8-SOIC packages with active product status. These parts are suitable for applications where audio amplifier classification is not a design requirement. Both variants provide 40 mA output current per channel and operate across 3V to 36V supply range. The primary trade-off is higher input offset voltage (2000 µV) compared to the LM833DG.
Not Recommended:
The BA4560FJ-GE2 (Rohm Semiconductor) carries a "Not For New Designs" product status and is not recommended for new applications. The LF253DT and LF353DT (STMicroelectronics) are J-FET amplifiers with significantly different electrical characteristics (4 MHz gain bandwidth product, 20 pA input bias current) and are suitable only for applications with specific J-FET requirements.
The LM833MM/NOPB (Texas Instruments) operates at a fixed 30V supply voltage and is not recommended for applications requiring the full 10V to 36V range of the LM833DG.
Frequently Asked Questions (FAQ)
Q: Can the LM833DR directly replace the LM833DG without circuit modifications?
A: The LM833DR is a direct pin-compatible substitute in the same 8-SOIC package. Electrical parameters are equal or superior to the LM833DG, including improved input offset voltage (150 µV vs. 300 µV) and higher gain bandwidth product (16 MHz vs. 15 MHz). No circuit modifications are required for direct substitution.
Q: What is the key difference between the LM833DR and LM833MX/NOPB?
A: Both are audio amplifiers in 8-SOIC packages with identical electrical specifications. The primary difference is supply voltage range: LM833DR operates 10V to 36V, while LM833MX/NOPB operates 10V to 30V. Select based on your application's supply voltage requirements.
Q: Why is the LM833DT recommended for high-temperature applications?
A: The LM833DT extends the operating temperature range to -40°C to 105°C compared to the LM833DG's -40°C to 85°C. This additional thermal margin is beneficial for applications in elevated ambient temperature environments. All other electrical parameters remain equivalent.
Q: Can I use the AS358MTR series as a substitute for the LM833DG?
A: The AS358MTR series provides general purpose amplification in compatible 8-SOIC packages with active product status. However, these parts have significantly higher input offset voltage (2000 µV vs. 300 µV) and lack the audio amplifier classification. Use only if your application does not require audio-grade specifications.
Q: What is the difference between LF253DT and LF353DT?
A: Both are J-FET amplifiers with identical electrical specifications. The primary difference is operating temperature range: LF253DT operates -40°C to 105°C, while LF353DT operates 0°C to 70°C. These parts are not recommended as direct substitutes for the LM833DG due to significantly different electrical characteristics (4 MHz vs. 15 MHz gain bandwidth product).
Q: Is the LM833MM/NOPB suitable for my application requiring 10V to 36V operation?
A: No. The LM833MM/NOPB operates at a fixed 30V supply voltage and cannot accommodate the full 10V to 36V range. Select LM833DR or LM833MX/NOPB for applications requiring extended supply voltage range.
Q: What compliance certifications should I verify for production use?
A: All recommended active substitutes carry ROHS3 compliance and REACH unaffected status. Verify ROHS3 compliance and REACH status with your supplier for your specific production requirements and regional regulations.
Q: Does package format affect substitution compatibility?
A: Yes. The LM833DG uses 8-SOIC packaging. Direct substitutes must use 8-SOIC or equivalent 8-pin surface mount packages. The LM833MM/NOPB uses 8-VSSOP packaging, which has different physical dimensions and may require PCB layout modifications. Verify package compatibility with your PCB design before substitution.
Q: Why is the LM833M listed as an active substitute despite higher input bias current?
A: The LM833M (National Semiconductor) maintains audio amplifier classification and 8-SOIC packaging with active product status. The 500 nA input bias current (vs. 300 nA for LM833DG) is within acceptable tolerance for most audio applications. However, the LM833DR is preferred due to lower input bias current and improved input offset voltage.
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