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Texas Instruments LM833N/NOPB
- Part No.:
- LM833N/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LM833N/NOPB.pdf
- Description:
- IC AUDIO 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,434
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Product details
Overview
LM833N/NOPB from Texas Instruments is a dual general-purpose audio operational amplifier optimized for preamp and high-level stages in PCM and HiFi systems. It delivers 15 MHz gain bandwidth, 7 V/μs slew rate (typ), 4.5 nV/√Hz input noise voltage, and 0.002% THD at 20–20 kHz - enabling low-distortion analog signal conditioning in stereo line-level circuits.
For engineers reviewing the LM833N/NOPB datasheet, LM833N/NOPB pinout, LM833N/NOPB application, or LM833N/NOPB equivalent, key selection criteria include its wide dynamic range (>140 dB), internal compensation for unity-gain stability, and proven performance in RIAA preamps, tone controls, and balanced-to-single-ended converters.
Technical Context
The LM833N/NOPB employs internally compensated voltage-feedback architecture with 60° phase margin, supporting stable operation at all closed-loop gains without external compensation. Its dual-channel layout shares a common substrate but maintains >120 dB input-referred crosstalk suppression across 20 Hz–20 kHz.
Designed specifically for audio signal chains, it features rail-to-rail input common-mode range (±14 V at ±15 V supply), low 0.3 mV input offset voltage, and robust capacitive load drive capability up to 50 pF without phase degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 15 MHz (typ); enables stable unity-gain operation with >60° phase margin in audio filters and buffers. |
| Slew Rate | 7 V/μs (typ); supports full-swing 20 kHz sine output without slewing distortion at ±15 V supply. |
| Input Noise Voltage | 4.5 nV/√Hz at 1 kHz; ensures <0.38 μV A-weighted integrated noise in NAB/RIAA preamp configurations. |
| Total Harmonic Distortion | 0.002% at 20–20 kHz, 3 Vrms output; meets HiFi-grade line-stage requirements per IEC 60268-3. |
| Input Offset Voltage | 0.3 mV (max); minimizes DC error in DC-coupled active filters and summing amplifiers. |
| Power Bandwidth | 120 kHz at 27 Vpp output into 2 kΩ; sustains full-power response beyond audible band for transient fidelity. |
| Common-Mode Rejection | 100 dB (typ); rejects power supply ripple and ground noise in single-supply-derived bias networks. |
Pinout & Package
LM833N/NOPB is housed in an 8-pin PDIP (Plastic Dual In-line Package) with 0.3-inch body width and standard through-hole footprint. Pin 1 is located at the left end of the top row, identified by a notch or dot marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amp 1) | Accepts inverted-phase signal; used in inverting gain stages and active filters. |
| 2 | Non-Inverting Input (Amp 1) | Accepts non-inverted signal; referenced to ground or bias network in single-supply designs. |
| 3 | Output (Amp 1) | Delivers amplified signal; capable of driving 2 kΩ loads with ±13.4 V swing at ±15 V supply. |
| 4 | Negative Supply (VEE) | Connects to −15 V (or −5 V min); establishes lower rail for dual-supply operation. |
| 5 | Non-Inverting Input (Amp 2) | Independent input for second channel; enables stereo or differential processing without crosstalk. |
| 6 | Inverting Input (Amp 2) | Second channel inverting node; used in balanced input mic amps and adder/subtracter topologies. |
| 7 | Output (Amp 2) | Second independent output; supports dual-channel line drivers or panning circuits. |
| 8 | Positive Supply (VCC) | Connects to +15 V (or +5 V min); supplies both amplifiers from shared rail with adequate decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| Internally compensated | Stable at unity gain without external components - reduces BOM count and layout sensitivity in preamp stages. |
| Wide dynamic range | >140 dB SNR enables 24-bit DAC reconstruction paths without degrading effective resolution. |
| Low distortion at full power | 0.002% THD at 27 Vpp output confirms clean clipping behavior in line-driver applications. |
| High slew rate | 7 V/μs ensures faithful reproduction of fast transients (e.g., drum attacks) without slew-induced intermodulation. |
| Capacitive load tolerance | Stable with ≤50 pF loads - simplifies PCB routing and eliminates need for isolation resistors in short cable drives. |
Applications
| RIAA Phono Preamp | Tone Control Circuit |
|---|---|
Use Scenario: Amplifying and equalizing low-level signals from moving-magnet phonograph cartridges. IC Role / Device Role / Timing Role: Dual-channel op-amp implementing IEC 60268-15 RIAA curve with precise time constants via feedback networks. Use Value: Achieves 90 dB SNR and 0.33 μV A-weighted noise floor at 1 kHz, meeting vinyl playback fidelity benchmarks. | Use Scenario: Adjustable bass/treble shaping in consumer stereo receivers and active speakers. IC Role / Device Role / Timing Role: Dual op-amp configured as dual biquad sections for independent low/high-frequency boost/cut. Use Value: Maintains flat group delay and <0.002% THD across 35 dB of cut/boost range at 1 kHz reference level. |
| Line Driver | Balanced-to-Single-Ended Converter |
Use Scenario: Driving long unbalanced cables (up to 10 m) from DAC outputs or mixer buses. IC Role / Device Role / Timing Role: Unity-gain buffer with low output impedance (<100 Ω) and high current drive capability. Use Value: Delivers ±13.4 V swing into 2 kΩ while maintaining 120 kHz power bandwidth for extended transient response. | Use Scenario: Converting XLR or TRS balanced audio signals to unbalanced RCA or TS outputs. IC Role / Device Role / Timing Role: Differential amplifier using one half for inverting input and second half for non-inverting reference. Use Value: Provides >80 dB common-mode rejection at 1 kHz, suppressing ground loop hum in studio interconnects. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual audio operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NE5532AP | Higher input bias current (300 nA vs. 500 nA typ), wider supply range (±20 V), identical GBW and THD specs. | Preferred in professional audio gear requiring higher headroom; less suitable for battery-powered portable designs. | Select NE5532AP when operating above ±15 V or needing enhanced output current (±38 mA vs. ±25 mA). |
| TL072CP | Lower slew rate (13 V/μs vs. 7 V/μs), higher input noise (18 nV/√Hz), JFET input (lower IB), no RIAA-optimized noise profile. | Used in guitar pedals and cost-sensitive consumer audio where ultra-low noise is not critical. | Choose TL072CP only for non-critical line-level buffering where noise floor >1 μV is acceptable. |
Compared with NE5532AP and TL072CP, LM833N/NOPB offers the optimal balance of low noise, low distortion, and guaranteed stability in unity-gain audio configurations - making it the preferred choice for RIAA, NAB, and HiFi line-stage designs where measured fidelity is prioritized over raw speed or supply flexibility.
Availability
LM833N/NOPB is available at Aetrix Electronics and suitable for HiFi audio equipment, professional studio interfaces, and legacy analog test instrumentation requiring stable component supply and long-term obsolescence management.
Supply support for LM833N/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a U.S.-based semiconductor company founded in 1930, specializing in analog ICs, embedded processors, and high-reliability power management solutions.
The LM833 series was developed in the early 1980s as a high-fidelity dual op-amp targeting phono preamplification, tape playback, and precision audio signal conditioning in consumer and pro-audio equipment.
FAQ
What is the maximum supply voltage rating for LM833N/NOPB?
The absolute maximum supply voltage (VCC–VEE) for LM833N/NOPB is 36 V. Operation at ±15 V (30 V total) is standard and ensures full specification compliance across all AC and DC parameters including slew rate, THD, and output swing. Exceeding ±18 V risks parametric shift and reduced reliability per TI's Absolute Maximum Ratings table.
Does LM833N/NOPB require external compensation capacitors?
No, LM833N/NOPB is internally compensated for unity-gain stability and does not require external compensation capacitors. Its 60° phase margin guarantees stable operation in inverting, non-inverting, and active filter configurations at all closed-loop gains - verified per Figure 8 (Voltage Gain & Phase vs Frequency) in the official SNOSBD8E datasheet.
Can LM833N/NOPB be used in single-supply audio applications?
Yes, LM833N/NOPB supports single-supply operation with appropriate input biasing. Its input common-mode range extends to within 1.5 V of either rail (±14 V at ±15 V), allowing use with mid-rail virtual ground networks. Designers must ensure output swing remains within VOH/VOL limits and avoid clipping when driving capacitive loads without isolation resistors.
What is the typical input-referred noise voltage of LM833N/NOPB at 1 kHz?
The typical input-referred noise voltage of LM833N/NOPB at 1 kHz is 4.5 nV/√Hz, measured with RS = 100 Ω per the DESIGN ELECTRICAL CHARACTERISTICS table. This value is confirmed in Figure 21 (Input Referred Noise Voltage vs Source Resistance) and directly enables sub-0.4 μV A-weighted noise floors in RIAA preamp implementations using LM833N/NOPB.
Is LM833N/NOPB RoHS compliant?
Yes, LM833N/NOPB is RoHS compliant, as confirmed in TI's PACKAGE OPTION ADDENDUM (15-Jul-2026). The "NOPB" suffix indicates lead-free finish (NIPDAU), and the part carries Level-1 moisture sensitivity rating with unlimited floor life under standard storage conditions.
LM833N/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Audio
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 7V/µs
- Gain Bandwidth Product:
- 15 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 500 nA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 5mA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 30 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LM833N/NOPB FAQ
1.How can I place an order for LM833N/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM833N/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM833N/NOPB reliable?
The price and inventory of LM833N/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM833N/NOPB is usually 5 days.
3.What payment methods are accepted for LM833N/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM833N/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM833N/NOPB?
LM833N/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM833N/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM833N/NOPB?
For technical support, including LM833N/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM833N/NOPB requirements.
6.How does Aetrix verify that LM833N/NOPB is sourced from the original manufacturer or authorized distributors?
All LM833N/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM833N/NOPB meets industry standards.
7.What is the process for return or replacement of LM833N/NOPB?
All LM833N/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM833N/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM833N/NOPB part is unused and in its original packaging.
Return procedure for LM833N/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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