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Texas Instruments TL074QDREP
- Part No.:
- TL074QDREP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL074QDREP.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,788
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Product details
Overview
TL074QDREP from Texas Instruments is a quad JFET-input operational amplifier engineered for high-fidelity audio and precision analog signal conditioning in extended-temperature industrial and defense systems. It delivers 13 V/μs slew rate, 18 nV/√Hz input voltage noise at 1 kHz, ±12 V maximum peak output swing (RL ≥2 kΩ), and operates across –40°C to 125°C. Its low 6 mV input offset voltage and 0.003% typical THD make it suitable for microphone preamplifiers and active filter stages.
For engineers reviewing the TL074QDREP datasheet, TL074QDREP pinout, TL074QDREP application, or TL074QDREP equivalent, key selection criteria include its JFET-input stage enabling >1 TΩ input resistance, SOIC-14 package compatibility with legacy TL07x layouts, guaranteed performance over military-grade temperature range, and suitability for low-distortion, low-noise analog front-ends where supply current per amplifier remains stable at 2.5 mA (typ) under ±15 V operation.
Technical Context
The TL074QDREP integrates four independent high-input-impedance JFET differential pairs with bipolar output stages on a single monolithic die, supporting rail-to-rail common-mode input voltage range including VCC+. Its internal frequency compensation ensures unity-gain stability without external components, while latch-up-free architecture enables robust operation in noisy environments.
Each amplifier features matched transistor pairs for low input offset drift (18 μV/°C max), low input bias current (65 pA typ at 25°C), and high CMRR (80 dB min) and PSRR (80 dB min), making it appropriate for DC-coupled sensor interfaces and precision instrumentation amplifiers requiring minimal drift over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±15 V (absolute max ±18 V); supports dual-rail operation with symmetric headroom for linear signal swing |
| Slew Rate | 13 V/μs (typ); enables faithful reproduction of fast transients in audio and pulse-amplification circuits |
| Input Noise Voltage | 18 nV/√Hz (typ at 1 kHz); critical for preserving SNR in low-level signal amplification paths |
| Input Offset Voltage | 6 mV (max at 25°C); defines minimum resolvable DC signal without trimming in non-critical applications |
| Common-Mode Range | –12 V to +15 V (min); includes full VCC+ rail, allowing direct connection to sensors referenced to positive supply |
| THD | 0.003% (typ at f = 1 kHz); meets high-fidelity audio requirements for preamp and line-driver stages |
| Operating Temperature | –40°C to 125°C; qualified for extended-temperature industrial control, avionics, and medical equipment |
Pinout & Package
TL074QDREP is housed in a 14-pin SOIC (D) package with 1.27 mm pitch, 8.65 mm × 3.90 mm body dimensions, and 1.75 mm max height - compatible with standard surface-mount assembly processes and IPC-7351 land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Channel 1 Output | Amplified output of first op-amp; drives loads ≥2 kΩ for full ±12 V swing |
| 2 | Channel 1 Inverting Input | Inverting node for feedback configuration; high-impedance JFET input minimizes loading |
| 3 | Channel 1 Non-Inverting Input | Reference input for follower or non-inverting gain stages; accepts signals up to VCC+ |
| 4 | Negative Supply (VCC−) | Ground reference for dual-supply operation; must be decoupled locally with 100 nF ceramic |
| 5 | Channel 2 Non-Inverting Input | Independent input for second amplifier; electrically isolated from other channels |
| 6 | Channel 2 Inverting Input | Feedback node for channel 2; matches channel 1 characteristics within process variation |
| 7 | Channel 2 Output | Second independent output; shares same AC/DC specs as pin 1 |
| 8 | Channel 3 Output | Third amplifier output; identical performance to pins 1 and 7 |
| 9 | Channel 3 Inverting Input | Inverting input for third op-amp; maintains low bias current and high Zin |
| 10 | Channel 3 Non-Inverting Input | Non-inverting input for third channel; supports rail-inclusive common-mode range |
| 11 | Positive Supply (VCC+) | Primary power rail; requires local 100 nF ceramic decoupling near pin |
| 12 | Channel 4 Non-Inverting Input | Fourth amplifier's non-inverting input; fully independent and matched |
| 13 | Channel 4 Inverting Input | Fourth amplifier's inverting input; same electrical behavior as pins 2, 6, and 9 |
| 14 | Channel 4 Output | Final independent output; completes quad-channel functionality in single footprint |
Key Features
| Feature | Design Value |
|---|---|
| JFET input stage | Input resistance >10¹² Ω enables high-Z sensor interfacing without signal attenuation |
| Low total harmonic distortion | 0.003% THD (typ) preserves waveform integrity in audio preamplifier and tone-control circuits |
| Output short-circuit protection | Enables safe operation during fault conditions without external current-limiting components |
| Extended temperature range | –40°C to 125°C operation supports deployment in engine control units and outdoor instrumentation |
| Internal frequency compensation | Guarantees stable unity-gain operation without external compensation capacitors |
Applications
| Audio Preamp Stage | Active Bandpass Filter |
|---|---|
|
Use Scenario: Amplifying low-level microphone or phono cartridge signals before ADC conversion in professional audio mixers. IC Role / Device Role / Timing Role: First-stage low-noise voltage amplifier with adjustable gain and DC blocking. Use Value: 18 nV/√Hz input noise and 0.003% THD preserve dynamic range and tonal accuracy without requiring post-amplification correction. |
Use Scenario: Implementing tunable bandpass response for ECG signal extraction in portable medical monitors. IC Role / Device Role / Timing Role: Quad op-amp configured as two biquad sections (Sallen-Key topology) for precise center-frequency control. Use Value: Matched amplifier characteristics across all four channels ensure consistent Q-factor and passband flatness across production units. |
| Quad Sensor Signal Conditioner | Quadrature Oscillator Core |
|
Use Scenario: Simultaneous amplification and level-shifting of four thermocouple outputs in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Four independent instrumentation-grade amplifiers with programmable gain and offset calibration. Use Value: Low 6 mV input offset and 18 μV/°C drift minimize calibration burden and maintain accuracy over wide ambient temperature swings. |
Use Scenario: Generating orthogonal sine/cosine waveforms for resolver-to-digital converter excitation in servo motor drives. IC Role / Device Role / Timing Role: Quad op-amp wired as coupled integrator pair (Figure 22 in datasheet) to sustain stable 100-kHz oscillation. Use Value: Guaranteed 3 MHz unity-gain bandwidth and 13 V/μs slew rate support clean quadrature generation without phase skew or amplitude droop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad JFET-input operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL074MDREP | Rated for –55°C to 125°C; higher input offset voltage (6 mV max same, but tighter test limits apply); same SOIC-14 package | Required for MIL-STD-883-compliant defense/aerospace deployments where extended cold-start capability is mandatory | Select TL074MDREP when full military temperature range and traceability per V62/11621-02XE are contractually required |
| OPA4134UA | Lower input noise (8 nV/√Hz), lower THD (0.00008%), rail-to-rail output, but higher supply current (4 mA/amplifier) and no extended-temp qualification | Better suited for ultra-high-fidelity studio audio where noise floor and distortion dominate over temperature range | Choose OPA4134UA only if system-level thermal management allows higher power dissipation and commercial temp range suffices |
Compared with TL074MDREP, TL074QDREP trades military cold-start capability for lower cost and broader commercial availability; versus OPA4134UA, it prioritizes extended-temperature reliability and lower quiescent current over ultimate audio fidelity metrics.
Availability
TL074QDREP is available at Aetrix Electronics and suitable for industrial control systems, aerospace data acquisition modules, and medical diagnostic equipment requiring stable component supply across long product lifecycles and rigorous environmental qualification.
Supply support for TL074QDREP 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 heritage in precision op-amps and high-reliability components.
The TL07x-EP series-including TL074QDREP-is designed specifically for defense, aerospace, and medical applications demanding extended temperature operation, controlled baseline manufacturing, and full product traceability.
FAQ
What is the maximum operating supply voltage for TL074QDREP?
The absolute maximum supply voltage for TL074QDREP is ±18 V across VCC+ and VCC− terminals. Operation at ±15 V is recommended for full specification compliance, including guaranteed slew rate, output swing, and THD performance. Exceeding ±18 V risks permanent damage, and sustained operation near absolute maximum ratings may reduce long-term reliability.
Does TL074QDREP support single-supply operation?
TL074QDREP is optimized for dual-supply operation (±VCC) and does not support true single-supply use due to its input common-mode range limitation: the minimum input voltage is specified down to –12 V, not ground. While it can function with VCC− tied to 0 V and VCC+ at +30 V, input signals must remain within –12 V to +15 V relative to VCC−, making dedicated single-supply op-amps like TLV2464 more appropriate for 0–5 V systems.
How does TL074QDREP differ from commercial-grade TL074?
TL074QDREP is an enhanced-product (EP) variant with controlled baseline manufacturing, extended temperature qualification (–40°C to 125°C), full traceability, and screening per V62/11621-01XE. Unlike commercial TL074, it undergoes additional testing for parameter stability across temperature extremes and includes documentation for defense/aerospace compliance-making it unsuitable for cost-sensitive consumer applications where those features add unnecessary overhead.
Is TL074QDREP pin-compatible with TL072QDREP?
No-TL074QDREP uses a 14-pin SOIC package with four independent amplifiers, while TL072QDREP is an 8-pin SOIC housing only two amplifiers. Though both share identical pinouts *per amplifier section* (e.g., pins 1–4 of TL074 match pins 1–4 of TL072), the physical pin count and layout differ. PCBs designed for TL072QDREP cannot accommodate TL074QDREP without layout revision.
What decoupling is recommended for TL074QDREP?
TI recommends placing a 100 nF X7R ceramic capacitor between VCC+ and VCC− pins, located ≤5 mm from the device, with short, low-inductance traces. For systems with high-frequency noise or multiple TL074QDREP units, adding a 10 µF tantalum or aluminum electrolytic capacitor in parallel improves low-frequency supply stability. Ground-plane integrity and star grounding at the decoupling point are essential to maintain low-noise performance.
TL074QDREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- J-FET
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 13V/µs
- Gain Bandwidth Product:
- 5.25 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 65 pA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 1.4mA (x4 Channels)
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TL074QDREP FAQ
1.How can I place an order for TL074QDREP through Aetrix?
Please submit a Request for Quotation (RFQ) for TL074QDREP 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 TL074QDREP reliable?
The price and inventory of TL074QDREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL074QDREP is usually 5 days.
3.What payment methods are accepted for TL074QDREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL074QDREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL074QDREP?
TL074QDREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL074QDREP 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 TL074QDREP?
For technical support, including TL074QDREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL074QDREP requirements.
6.How does Aetrix verify that TL074QDREP is sourced from the original manufacturer or authorized distributors?
All TL074QDREP 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 TL074QDREP meets industry standards.
7.What is the process for return or replacement of TL074QDREP?
All TL074QDREP units undergo pre-shipment inspection (PSI). If there is an issue with TL074QDREP, 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 TL074QDREP part is unused and in its original packaging.
Return procedure for TL074QDREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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