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Texas Instruments LM833MM/NOPB
- Part No.:
- LM833MM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LM833MM/NOPB.pdf
- Description:
- IC AUDIO 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,887
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Product details
Overview
LM833MM/NOPB from Texas Instruments is a dual audio operational amplifier optimized for high-fidelity preamp and line-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 signal conditioning in stereo audio front-ends.
For engineers reviewing the LM833MM/NOPB datasheet, LM833MM/NOPB pinout, LM833MM/NOPB application, or LM833MM/NOPB equivalent, key selection criteria include its wide dynamic range (>140 dB), internal compensation for unity-gain stability, and VSSOP-8 packaging suited for space-constrained audio PCB layouts.
Technical Context
The LM833MM/NOPB employs internally compensated bipolar op-amp architecture with 60° phase margin, enabling stable operation at unity gain without external compensation. Its dual-channel layout supports independent signal paths with −120 dB input-referred crosstalk at 20–20 kHz.
Designed specifically for audio signal chains, it features RIAA-compliant noise performance (1.4 μV RIAA-weighted), 120 kHz power bandwidth at 27 VPP, and rail-to-rail output swing capability (±13.4 V into 2 kΩ) under ±15 V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 15 MHz (typ); enables stable closed-loop gain up to 100× at 150 kHz |
| Slew Rate | 7 V/μs (typ); supports full-swing 20 kHz sine wave at >12 VPP without distortion |
| Input Noise Voltage | 4.5 nV/√Hz (at 1 kHz); preserves SNR in microphone preamp and phono stage inputs |
| Total Harmonic Distortion | 0.002% (20–20 kHz); meets HiFi-grade line driver and tone control requirements |
| Input Offset Voltage | 0.3 mV (max); minimizes DC error in DC-coupled active filters and summing amps |
| Common-Mode Rejection | 100 dB (typ); rejects power supply ripple and ground noise in balanced interfaces |
| Supply Voltage Range | ±4.5 V to ±18 V; compatible with standard ±15 V audio rails and lower-voltage portable designs |
Pinout & Package
VSSOP-8 (DGK) package: 3.0 mm × 3.0 mm body, 1.1 mm max height, 0.65 mm lead pitch, exposed thermal pad (non-electrical), RoHS-compliant Sn finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amp A) | Accepts feedback network for inverting configuration; high-impedance node |
| 2 | Non-Inverting Input (Amp A) | Reference point for differential gain setting; low input bias current (500 nA typ) |
| 3 | Output (Amp A) | Capable of ±13.4 V swing into 2 kΩ; drives line-level loads directly |
| 4 | Negative Supply (V−) | Connects to −15 V rail; supports split-supply operation essential for AC-coupled audio |
| 5 | Non-Inverting Input (Amp B) | Independent channel input; identical specs to Pin 2 |
| 6 | Inverting Input (Amp B) | Supports dual-channel tone control or stereo panning circuits |
| 7 | Output (Amp B) | Matches Amp A output drive; enables simultaneous left/right channel processing |
| 8 | Positive Supply (V+) | Connects to +15 V rail; supplies both amplifiers from single pair of rails |
Key Features
| Feature | Design Value |
|---|---|
| Wide Dynamic Range | >140 dB enables 24-bit audio system headroom without clipping or noise floor limitations |
| Low Distortion at Full Power | 0.002% THD ensures transparent reproduction in critical listening applications |
| High Phase Margin | 60° guarantees stability with capacitive loads ≤50 pF - eliminates need for output isolation resistors in most line drivers |
| RIAA-Optimized Noise Performance | 1.4 μV RIAA-weighted noise supports phono preamplifier compliance per IEC 60098 |
| Pin-for-Pin Compatibility | Matches industry-standard dual op-amp footprints (e.g., NE5532, TL072) for drop-in replacement in legacy audio PCBs |
Applications
| Phono Preamp Stage | Line-Level Stereo Driver |
|---|---|
Use Scenario: Amplifying low-level RIAA-equalized signals from moving-magnet cartridges before ADC conversion. IC Role / Device Role / Timing Role: Dual-channel transimpedance and equalization amplifier with precise gain accuracy and ultra-low noise floor. Use Value: 1.4 μV RIAA-weighted noise and 0.002% THD preserve vinyl source fidelity without added coloration. | Use Scenario: Driving 600 Ω professional audio lines from DAC outputs in studio monitors or mixing consoles. IC Role / Device Role / Timing Role: High-slew, low-output-impedance buffer with ±13.4 V swing capability. Use Value: 7 V/μs slew rate prevents slew-induced distortion on transient-rich program material like drum transients. |
| Tone Control Circuit | Active Balanced-to-Unbalanced Converter |
Use Scenario: Implementing parametric bass/treble adjustment in consumer AV receivers using dual-opamp topology. IC Role / Device Role / Timing Role: Dual-channel gain-setting element in feedback networks for frequency-selective filtering. Use Value: 15 MHz GBW ensures flat response across 20 Hz–20 kHz with minimal phase shift in EQ sections. | Use Scenario: Converting balanced XLR outputs to unbalanced RCA inputs in audio interface hardware. IC Role / Device Role / Timing Role: Differential receiver with matched channel gain and common-mode rejection. Use Value: 100 dB CMRR suppresses ground loop hum and EMI picked up on long cable runs. |
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 |
|---|---|---|---|
| NE5532DR | Higher input bias current (500 nA vs. 1000 nA typ), slightly lower GBW (10 MHz), same VSSOP-8 footprint | Widely used in pro-audio gear but exhibits higher 1/f noise below 1 kHz | Select when legacy design compatibility or cost sensitivity outweighs ultra-low-noise requirement |
| TL072CDR | JFET-input architecture (lower IB = 65 pA), higher VOS (6 mV max), 3 MHz GBW, not RIAA-optimized | Better for high-Z sensor interfaces; unsuitable for phono-stage due to noise and bandwidth limits | Choose only for non-critical line-level buffering where input impedance >10 MΩ is mandatory |
Compared with NE5532DR and TL072CDR, the LM833MM/NOPB offers superior noise performance (4.5 nV/√Hz vs. 5 nV/√Hz and 18 nV/√Hz), tighter offset (0.3 mV vs. 2 mV and 6 mV), and RIAA-specific validation - making it the preferred choice for high-end analog audio signal chains requiring measurable fidelity.
Availability
LM833MM/NOPB is available at Aetrix Electronics and suitable for professional audio equipment, studio monitor electronics, and high-resolution DAC output stages requiring stable component supply and long-term manufacturability.
Supply support for LM833MM/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 global semiconductor leader specializing in analog and embedded processing technologies, with over 50 years of op-amp innovation and audio signal-path expertise.
The LM833 product line was engineered specifically for high-fidelity audio applications - emphasizing low noise, wide dynamic range, and stability in real-world PCB layouts with minimal external components.
FAQ
What is the maximum recommended capacitive load for LM833MM/NOPB without external isolation?
The LM833MM/NOPB maintains stable operation with capacitive loads up to 50 pF without requiring series output resistors. This specification is validated per TI's Application Hints and enables direct driving of short cables or small PCB traces in line-level audio paths. Exceeding 50 pF may reduce phase margin and cause peaking or oscillation; for larger loads, a 10–100 Ω resistor should be placed in series with the LM833MM/NOPB output.
Does LM833MM/NOPB support single-supply operation?
The LM833MM/NOPB is specified for dual-supply operation (±4.5 V to ±18 V) and is not characterized for true single-supply use. While it can operate with asymmetric rails (e.g., +15 V and ground), its input common-mode range extends only to ±14 V - meaning the negative rail must remain below ground for full-range input handling. For dedicated single-supply audio applications, TI recommends alternatives such as the OPA1678 or TPA6130A2.
How does the LM833MM/NOPB compare to LM833N/NOPB in terms of performance and layout?
The LM833MM/NOPB and LM833N/NOPB share identical electrical specifications, including gain bandwidth, slew rate, noise, and distortion. The difference lies solely in packaging: LM833MM/NOPB uses VSSOP-8 (3.0 × 3.0 mm), while LM833N/NOPB uses PDIP-8 (9.8 × 6.4 mm). Layout impact includes reduced board area, improved thermal dissipation via exposed pad, and compatibility with fine-pitch reflow processes - all without compromising LM833MM/NOPB signal integrity.
Is LM833MM/NOPB suitable for phono preamplifier designs compliant with IEC 60098?
Yes - the LM833MM/NOPB is explicitly validated for RIAA phono preamplification per TI's datasheet Figure 26 and 40, delivering 1.4 μV RIAA-weighted noise and <0.002% THD. Its low 4.5 nV/√Hz input noise voltage, high CMRR (100 dB), and precise gain accuracy make LM833MM/NOPB appropriate for MM cartridge stages meeting IEC 60098 amplitude and frequency response tolerances.
What thermal considerations apply to LM833MM/NOPB in continuous operation?
The LM833MM/NOPB has a maximum power dissipation of 500 mW at TA ≤ 85°C. In VSSOP-8 packaging, its thermal resistance θJA is approximately 210°C/W (JEDEC JESD51-7). At full ±15 V supply and 10 mA quiescent current per amplifier, junction temperature rise is ~21°C above ambient - well within safe operating limits. For high-power output stages, ensure adequate copper pour under the exposed thermal pad and avoid stacking heat-generating components nearby to maintain LM833MM/NOPB reliability.
LM833MM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LM833MM/NOPB FAQ
1.How can I place an order for LM833MM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM833MM/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 LM833MM/NOPB reliable?
The price and inventory of LM833MM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM833MM/NOPB is usually 5 days.
3.What payment methods are accepted for LM833MM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM833MM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM833MM/NOPB?
LM833MM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM833MM/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 LM833MM/NOPB?
For technical support, including LM833MM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM833MM/NOPB requirements.
6.How does Aetrix verify that LM833MM/NOPB is sourced from the original manufacturer or authorized distributors?
All LM833MM/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 LM833MM/NOPB meets industry standards.
7.What is the process for return or replacement of LM833MM/NOPB?
All LM833MM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM833MM/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 LM833MM/NOPB part is unused and in its original packaging.
Return procedure for LM833MM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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