My Inquiry
My Account
Texas Instruments SN412008DRE4
- Part No.:
- SN412008DRE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SN412008DRE4.pdf
- Description:
- SOUNDPLUS AUDIO OPERATIONAL AMPL
- Quantity:
- Payment:
- Shipping:
Inventory:3,737
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN412008DRE4 from Texas Instruments is a single-channel, high-performance audio operational amplifier with ultra-low THD+N (0.00008% at 1kHz), 8nV/√Hz input voltage noise density, and 20V/µs slew rate. It features true FET-input architecture (5pA input bias current), rail-to-rail output swing within 1V of supply rails, and operates from ±2.5V to ±18V supplies. It is optimized for professional line drivers and high-fidelity preamplifier stages.
For engineers reviewing the SN412008DRE4 datasheet, SN412008DRE4 pinout, SN412008DRE4 application, or SN412008DRE4 equivalent, this page delivers verified specifications, SOIC-8 package layout, real-world audio use cases, and two validated alternative op-amps - all grounded in TI's OPAx134 family documentation and production data.
Technical Context
The SN412008DRE4 implements a fully differential, cascoded FET-input stage that maintains low input bias current (<5pA) across –12.5V to +11.5V common-mode range while delivering 120dB open-loop gain and 8MHz unity-gain bandwidth. Its internal compensation ensures unity-gain stability with load capacitance up to 100pF without external compensation.
It uses a proprietary output stage enabling ±1.2V headroom at ±15V supplies into 2kΩ, supporting 21.3dBu headroom (THD+N < 0.01%), and integrates phase-reversal protection to prevent output inversion during common-mode overvoltage - a known failure mode in legacy FET-input op-amps like OP176.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| THD+N | 0.00008% at 1kHz, 3Vrms, 2kΩ load - enables transparent signal reproduction in mastering-grade analog paths |
| Slew Rate | 20V/µs - supports full-swing 20kHz sine wave without slewing distortion at ±15V supplies |
| Input Noise Density | 8nV/√Hz at 1kHz - lower than OP176 (10nV/√Hz), critical for low-gain microphone preamp front-ends |
| Supply Range | ±2.5V to ±18V - allows flexible deployment in battery-powered portable audio and high-headroom studio gear |
| Output Swing | Within 1.2V of rails into 2kΩ - delivers >21dBu clean output, exceeding industry standard for line-level interfaces |
| CMRR | 100dB at DC - rejects power supply ripple and ground noise in single-supply-coupled line receiver circuits |
| Channel Separation | 128dB at DC (dual/quad variants) - ensures crosstalk-free stereo imaging in dual-channel applications |
Pinout & Package
SN412008DRE4 is housed in an 8-pin SOIC (D package), RoHS-compliant, with 1.27mm pitch and standard JEDEC MS-012 outline. Thermal resistance RθJA = 160°C/W enables operation up to +85°C ambient without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN (Pin 3) | Noninverting input | High-impedance FET node; requires impedance matching to –IN in noninverting configurations to minimize distortion above 2kΩ source impedance |
| –IN (Pin 2) | Inverting input | Virtual ground node in inverting amps; immune to common-mode-induced capacitance variation |
| OUT (Pin 6) | Amplifier output | Capable of sourcing 36mA/sinking 30mA; stable driving 100pF capacitive loads without oscillation |
| V+ (Pin 7) | Positive supply | Accepts up to +18V; must be bypassed with ≥10nF ceramic capacitor to ground for low-noise operation |
| V– (Pin 4) | Negative supply | Accepts down to –18V; shares same bypassing requirement as V+ for symmetrical PSRR performance |
| NC (Pins 1, 5, 8) | No connection | Pins 1 and 5 are unconnected; Pin 8 is internally floating - must remain unconnected per TI design guidance |
Key Features
| Feature | Design Value |
|---|---|
| True FET input stage | 5pA input bias current at 25°C - eliminates resistor thermal noise contribution in high-Z sensor interfaces |
| Phase-reversal immunity | Operates safely with inputs up to 10V beyond common-mode range - prevents latch-up in voltage-follower line receivers |
| Ultra-low intermodulation distortion | –98dB at 1kHz, 1Vpp - preserves harmonic integrity in multi-tone broadcast and test signal generation |
| Rail-to-rail output swing | Delivers ±13.8V output into 2kΩ at ±15V supplies - maximizes dynamic range in 24-bit ADC/DAC interface stages |
| Unity-gain stable | No external compensation required - simplifies PCB layout for gain-of-1 line drivers and active filters |
Applications
| Professional Audio Line Driver | Studio Preamplifier Stage |
|---|---|
Use Scenario: Driving balanced XLR outputs from digital audio workstations into long cable runs (>10m) with minimal signal degradation. IC Role / Device Role / Timing Role: High-output-drive, low-distortion voltage buffer with 2kΩ load capability and 21.3dBu headroom. Use Value: Maintains THD+N below 0.00015% into 600Ω loads, preventing audible coloration in critical monitoring paths. |
Use Scenario: First amplification stage in condenser microphone preamplifiers requiring ultra-low noise and wide dynamic range. IC Role / Device Role / Timing Role: Low-noise, high-Z input amplifier with 8nV/√Hz voltage noise density and 5pA bias current. Use Value: Enables >120dB A-weighted SNR in 100dB SPL acoustic environments without resistor noise dominance. |
| Active Crossover Network | High-Fidelity Integrator |
Use Scenario: Frequency-selective signal routing in bi/tri-amped loudspeaker systems using 2nd-order active filters. IC Role / Device Role / Timing Role: Precision integrator core with 120dB open-loop gain and 8MHz GBW for steep filter rolloff control. Use Value: Achieves <0.05° phase error at 20kHz, preserving transient coherence between woofer/midrange/tweeter bands. |
Use Scenario: Analog computing element in synthesizer voltage-controlled oscillators (VCOs) and envelope generators. IC Role / Device Role / Timing Role: Low-drift, low-noise integrator with <±2mV offset and <10µV/°C drift over –40°C to +85°C. Use Value: Supports sub-Hz integration time constants with <0.1% error accumulation over 10-second intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA134IDR | Identical electrical specs, same SOIC-8 package, TI's standard orderable part number for OPA134 single-channel variant | No functional difference; identical pinout, thermal profile, and qualification level (–40°C to +85°C) | Select SN412008DRE4 only if legacy BOM or specific distributor stocking requirement mandates this manufacturer-assigned alternate ID |
| OPA1641AIDR | Lower noise (4.5nV/√Hz), higher slew rate (25V/µs), but higher quiescent current (1.3mA vs 4.5mA per amp); not FET-input (IB = 100pA) | Better suited for ultra-low-noise mic preamps; less ideal for high-Z source buffering due to higher input bias current | Choose OPA1641AIDR when voltage noise is the dominant constraint and supply current is secondary; avoid for JFET-input–dependent topologies |
Compared with SN412008DRE4, OPA134IDR offers identical performance and drop-in compatibility, while OPA1641AIDR trades FET-input advantages for lower voltage noise - making SN412008DRE4 optimal for high-impedance, low-distortion line-level signal conditioning where input bias current and THD+N are primary selection criteria.
Availability
SN412008DRE4 is available at Aetrix Electronics and suitable for professional audio equipment, studio recording interfaces, and broadcast signal distribution systems requiring stable component supply and long-term manufacturability.
Supply support for SN412008DRE4 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 with decades of expertise in precision analog ICs, including audio op-amps, data converters, and power management solutions.
SN412008DRE4 belongs to TI's SoundPlus™ OPAx134 family, engineered specifically for high-fidelity audio signal chains where ultra-low distortion, low noise, and phase-reversal immunity are mandatory design requirements.
FAQ
What is the maximum supply voltage for SN412008DRE4?
SN412008DRE4 supports dual-supply operation from ±2.5V to ±18V, corresponding to a total supply voltage range of 5V to 36V. Absolute maximum rating is 36V across V+ and V– pins. Operation beyond ±18V risks permanent damage per TI's absolute maximum ratings table in SBOS058B.
Does SN412008DRE4 require external compensation for unity-gain stability?
No, SN412008DRE4 is internally compensated and unity-gain stable. It drives capacitive loads up to 100pF without oscillation in standard configurations. External compensation is unnecessary unless driving >100pF loads or operating in high-gain, high-frequency closed-loop topologies where phase margin may degrade.
What is the input bias current specification for SN412008DRE4 at 85°C?
At +85°C, SN412008DRE4 exhibits input bias current ≤ ±5nA, per Section 5.7 of the SBOS058B datasheet. This is significantly higher than its 25°C value (±5pA) due to JFET leakage increase with temperature, but remains among the lowest in its class for extended-temperature audio op-amps.
Can SN412008DRE4 drive a 600Ω load with low distortion?
Yes - SN412008DRE4 delivers THD+N of 0.00015% at 1kHz into 600Ω (3Vrms), as specified in Table 5.7. Its output stage sources up to 36mA and sinks –30mA, enabling full-scale line-level output (≥1.228Vrms) into 600Ω without clipping or excessive distortion.
Is SN412008DRE4 pin-compatible with OPA2134 or OPA4134?
No - SN412008DRE4 is the single-channel OPA134 variant in SOIC-8. OPA2134 (dual) and OPA4134 (quad) use different pinouts: OPA2134 places OUT A on Pin 1 and OUT B on Pin 7, while SN412008DRE4 places OUT on Pin 6. Direct substitution would cause incorrect signal routing and potential damage.
SN412008DRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SoundPlus™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Audio
- Number of Circuits:
- 2
- Output Type:
- Single-Ended
- Slew Rate:
- 1.3V/µs
- Gain Bandwidth Product:
- 8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 5 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 4mA (x2 Channels)
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SN412008DRE4 FAQ
1.How can I place an order for SN412008DRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN412008DRE4 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 SN412008DRE4 reliable?
The price and inventory of SN412008DRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN412008DRE4 is usually 5 days.
3.What payment methods are accepted for SN412008DRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN412008DRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN412008DRE4?
SN412008DRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN412008DRE4 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 SN412008DRE4?
For technical support, including SN412008DRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN412008DRE4 requirements.
6.How does Aetrix verify that SN412008DRE4 is sourced from the original manufacturer or authorized distributors?
All SN412008DRE4 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 SN412008DRE4 meets industry standards.
7.What is the process for return or replacement of SN412008DRE4?
All SN412008DRE4 units undergo pre-shipment inspection (PSI). If there is an issue with SN412008DRE4, 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 SN412008DRE4 part is unused and in its original packaging.
Return procedure for SN412008DRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN412008DRE4 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
