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Texas Instruments LM833P
- Part No.:
- LM833P
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LM833P.pdf
- Description:
- IC AUDIO 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:751
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Product details
Overview
LM833P from Texas Instruments is a dual high-speed audio operational amplifier designed for preamplification and signal conditioning in HiFi, PCM, and RIAA phono stages. It delivers 7 V/μs slew rate, 16 MHz gain-bandwidth product, 0.002% THD at 20 Hz–20 kHz, ±14.6 V output swing (±15 V supply), and 4.5 nV/√Hz input voltage noise - enabling low-distortion, wide-dynamic-range analog audio paths.
For engineers reviewing the LM833P datasheet, LM833P pinout, LM833P application, or LM833P equivalent, key selection criteria include dual-channel rail-to-rail output capability, low-noise performance in microphone and phono preamp topologies, thermal stability across –40°C to +85°C, and compatibility with ±5 V to ±18 V dual supplies in space-constrained PDIP-8 layouts.
Technical Context
The LM833P integrates two independent high-fidelity op-amps sharing a common substrate but with >120 dB inter-channel crosstalk rejection. Its internal compensation ensures stable unity-gain operation with ≥40° phase margin into 2 kΩ loads and 100 pF capacitive loads, supporting robust transient response without external compensation.
It employs bipolar input transistors optimized for low voltage noise and low THD, with symmetrical sink/source current capability (±29 mA short-circuit) and large-signal bandwidth exceeding 120 kHz at 27 VPP. Input offset voltage is trimmed to 0.15 mV (typ), and open-loop AC gain remains ≥800 dB at 20 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 7 V/μs - enables clean reproduction of fast transients in audio signals up to 20 kHz without slewing distortion |
| Gain-Bandwidth Product | 16 MHz - supports stable closed-loop gains ≥100 at 100 kHz or unity gain up to 16 MHz |
| Total Harmonic Distortion | 0.002% at 3 Vrms, 20 Hz–20 kHz - meets HiFi-grade linearity requirements for critical listening applications |
| Input Voltage Noise | 4.5 nV/√Hz at 1 kHz - minimizes audible hiss in low-level microphone and phono preamp stages |
| Output Voltage Swing | –14.6 V to +14.1 V (±15 V supply, 2 kΩ load) - provides >28 VPP headroom for dynamic audio peaks |
| Common-Mode Rejection | 100 dB (typ) - rejects power supply ripple and ground noise in single-ended sensor interfaces |
| Supply Voltage Range | ±5 V to ±18 V - supports flexible system-level power architecture including legacy ±12 V and modern ±15 V rails |
Pinout & Package
LM833P is supplied in an 8-pin plastic DIP (PDIP) package measuring 9.81 mm × 6.35 mm, with 0.3-inch row spacing and through-hole mounting. The package is RoHS-compliant and rated for operation from –40°C to +85°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Output 1 | Amplified output of Channel 1; capable of sourcing/sinking ≥29 mA into 600 Ω loads |
| 2 (IN1–) | Inverting Input 1 | Differential input node for Channel 1; 175 kΩ input resistance, 12 pF capacitance |
| 3 (IN1+) | Noninverting Input 1 | Differential input node for Channel 1; referenced to common-mode range ±14 V |
| 4 (VCC–) | Negative Supply | Ground reference for dual-supply operation; must be connected to negative rail (e.g., –15 V) |
| 5 (IN2+) | Noninverting Input 2 | Differential input node for Channel 2; electrically isolated from Channel 1 with >120 dB crosstalk |
| 6 (IN2–) | Inverting Input 2 | Differential input node for Channel 2; identical electrical characteristics to IN1± |
| 7 (OUT2) | Output 2 | Amplified output of Channel 2; fully independent, same drive strength and swing as OUT1 |
| 8 (VCC+) | Positive Supply | Power rail connection for dual-supply operation; must be connected to positive rail (e.g., +15 V) |
Key Features
| Feature | Design Value |
|---|---|
| Low THD + Noise | 0.002% THD + 4.5 nV/√Hz noise enables transparent audio amplification in phono and line-level stages |
| High Slew Rate | 7 V/μs supports full-power bandwidth >120 kHz at 27 VPP, preserving transient fidelity in digital audio playback |
| Wide Supply Range | Operates from ±5 V to ±18 V - compatible with legacy audio gear (±12 V) and professional studio rails (±15 V) |
| Large Output Swing | ±14.6 V swing into 2 kΩ allows >28 VPP signal delivery with minimal clipping in active filters and tone controls |
| Stable Unity-Gain | Internally compensated for unity-gain stability with ≥40° phase margin - eliminates need for external compensation networks |
| High CMRR/PSRR | 100 dB CMRR and 105 dB PSRR reject power supply noise and ground bounce in mixed-signal PCB layouts |
Applications
| Microphone Preamplifier | RIAA Phono Stage |
|---|---|
Use Scenario: Low-noise amplification of 1–10 mV signals from condenser or dynamic microphones before ADC conversion. IC Role / Device Role / Timing Role: First-stage gain block with 20–40 dB fixed gain, DC-coupled input, and 20 Hz–20 kHz bandwidth shaping. Use Value: 4.5 nV/√Hz input noise and 0.15 mV offset ensure <60 dB SNR at 10 mV input, meeting AES17 professional audio standards. |
Use Scenario: Two-stage equalization and amplification of moving-magnet cartridge outputs per IEC 98 RIAA curve. IC Role / Device Role / Timing Role: Dual-channel implementation of first-stage gain/equalization and second-stage final gain with precise pole-zero placement. Use Value: 0.002% THD and >120 dB channel isolation prevent intermodulation distortion and crosstalk between left/right channels. |
| HiFi Line-Level Amplifier | Active Audio Filter |
Use Scenario: Buffering and level-shifting between DAC outputs and headphone drivers or speaker amplifiers in compact audio systems. IC Role / Device Role / Timing Role: Unity-gain buffer or non-inverting amplifier with 10–20 V/V gain, driving 600 Ω or 10 kΩ loads. Use Value: ±14.6 V output swing and 7 V/μs slew rate deliver 20 VPP signals at 20 kHz with <0.01% group delay variation. |
Use Scenario: Implementation of 2nd-order low-pass, high-pass, or band-pass filters in analog mixing consoles and effects processors. IC Role / Device Role / Timing Role: Dual-opamp topology for state-variable or biquad filter architectures requiring matched gain blocks and low phase error. Use Value: 16 MHz GBW and 40°+ phase margin ensure accurate filter cutoffs within ±0.1 dB up to 100 kHz, even with 100 pF feedback caps. |
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 |
|---|---|---|---|
| NE5532P | Higher input bias current (300 nA vs 750 nA typ), slightly lower slew rate (9 V/μs), same 0.002% THD and 10 MHz GBW | Better suited for higher-source-impedance circuits (e.g., passive tone stacks); less ideal for ultra-low-noise mic preamps | Select NE5532P when circuit source impedance exceeds 10 kΩ or when legacy design reuse is required |
| OP27GP | Lower input offset (25 μV), lower noise (3.5 nV/√Hz), but single-channel only and no dual configuration; requires two devices | Used where highest precision and lowest noise are mandatory, but board area and cost allow dual-part implementation | Choose OP27GP only for monaural ultra-high-fidelity paths where channel matching is not required |
Compared with NE5532P and OP27GP, the LM833P offers optimal balance of dual-channel integration, 4.5 nV/√Hz noise, and ±14.6 V output swing in a single PDIP-8 package - making it preferred for stereo audio signal chains where space, cost, and channel matching are critical.
Availability
LM833P is available at Aetrix Electronics and suitable for HiFi audio equipment, professional microphone preamplifiers, and RIAA phono stage designs requiring stable component supply and long-term industrial availability.
Supply support for LM833P 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 global semiconductor leader specializing in analog and embedded processing technologies, with decades of leadership in high-performance op-amps for audio, industrial, and automotive markets.
The LM833P belongs to TI's precision audio op-amp product line, engineered specifically for low-noise, low-distortion signal conditioning in consumer and professional audio systems - emphasizing THD, noise floor, and output drive capability over general-purpose specs.
FAQ
What supply voltage range does the LM833P support?
The LM833P operates from ±5 V to ±18 V dual supplies, with recommended conditions spanning ±5 V to ±18 V at –40°C to +85°C. Absolute maximum ratings permit ±18 V on each rail, and the device maintains specified performance across this full range - including 0.002% THD and 7 V/μs slew rate at ±15 V. Operation below ±5 V is not characterized and may degrade output swing and bandwidth.
Is the LM833P pin-compatible with other dual op-amps?
Yes, the LM833P is pin-for-pin compatible with industry-standard dual op-amps in PDIP-8 packages, including the NE5532P and RC4558P. Pin assignments match the standard dual op-amp layout: OUT1, IN1–, IN1+, VCC–, IN2+, IN2–, OUT2, VCC+. This allows direct replacement in existing designs without PCB modification, provided supply and signal-level constraints remain within LM833P specifications.
What is the typical input offset voltage of the LM833P?
The LM833P has a typical input offset voltage of 0.15 mV at 25°C, with a maximum of 3 mV over the full –40°C to +85°C temperature range. Its offset voltage drift is 2 μV/°C, ensuring stable DC operating points in precision audio summing and differential amplification circuits. This low offset minimizes audible "thump" during power-up and reduces DC error in active filter integrators.
Can the LM833P drive 600 Ω loads effectively?
Yes, the LM833P delivers ±10.7 V output swing into 600 Ω loads at ±15 V supplies, supporting 21.4 VPP signals with <0.002% THD. Its output stage provides ±29 mA short-circuit current and maintains ≥40° phase margin under these conditions - enabling reliable operation in professional line-driver and headphone-buffer applications without external current boosting.
How does the LM833P perform in RIAA phono preamplifier designs?
The LM833P is explicitly validated for RIAA phono preamplifier use in TI's SLOS481B datasheet, including a complete two-stage design example achieving <0.1 dB deviation from ideal RIAA response and <0.002% THD. Its low noise (4.5 nV/√Hz), low THD, and high channel isolation (>120 dB) preserve stereo imaging and minimize cartridge-induced distortion - making LM833P a preferred choice for high-fidelity analog vinyl playback systems.
LM833P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Audio
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 7V/µs
- Gain Bandwidth Product:
- 16 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 300 nA
- Voltage - Input Offset:
- 150 µV
- Current - Supply:
- 2.05mA (x2 Channels)
- Current - Output / Channel:
- 37 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LM833P FAQ
1.How can I place an order for LM833P through Aetrix?
Please submit a Request for Quotation (RFQ) for LM833P 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 LM833P reliable?
The price and inventory of LM833P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM833P is usually 5 days.
3.What payment methods are accepted for LM833P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM833P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM833P?
LM833P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM833P 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 LM833P?
For technical support, including LM833P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM833P requirements.
6.How does Aetrix verify that LM833P is sourced from the original manufacturer or authorized distributors?
All LM833P 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 LM833P meets industry standards.
7.What is the process for return or replacement of LM833P?
All LM833P units undergo pre-shipment inspection (PSI). If there is an issue with LM833P, 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 LM833P part is unused and in its original packaging.
Return procedure for LM833P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM833P Tags
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