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Texas Instruments TL074CDBR
- Part No.:
- TL074CDBR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
TL074CDBR.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,980
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Product details
Overview
TL074CDBR from Texas Instruments is a quad JFET-input operational amplifier optimized for low-noise audio and precision analog signal conditioning. It delivers 37 nV/√Hz input voltage noise at 1 kHz, 20 V/μs slew rate, ±15 V supply operation, and rail-to-rail common-mode input range extending to VCC+. It is widely used in pro-audio mixers and battery test equipment where high fidelity and DC accuracy are critical.
For engineers reviewing the TL074CDBR datasheet, TL074CDBR pinout, TL074CDBR application, or TL074CDBR equivalent, this page provides verified specifications, SOIC-14 package details, real-world use cases in audio and power test systems, and two validated alternative parts with documented functional and thermal differences.
Technical Context
The TL074CDBR uses a JFET-input differential pair architecture enabling ultra-low input bias current (≤200 pA) and high input impedance (>1 TΩ). Its internal compensation ensures stable unity-gain operation with ≤20 pF capacitive load drive capability.
It features fully independent amplifier sections with no crosstalk-induced gain error above –80 dB at DC, and integrated EMI filtering improves RF immunity in noisy industrial environments without external shielding.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 37 nV/√Hz at 1 kHz - enables clean amplification of microvolt-level sensor signals without adding measurable noise floor |
| Slew Rate | 20 V/μs - supports full-power bandwidth >300 kHz at ±12 V output swing for fast transient response in active filters |
| Input Bias Current | ≤200 pA - preserves signal integrity in high-impedance source networks like piezoelectric sensors or photodiode transimpedance stages |
| Common-Mode Input Range | Extends to VCC+ - allows direct interfacing with single-supply DAC outputs or rail-referenced transducers without level-shifting circuitry |
| Quiescent Current | 1.4–2.5 mA per amplifier - balances low power consumption with sufficient drive strength for 10 kΩ loads in portable instrumentation |
| Gain-Bandwidth Product | 5.25 MHz - supports stable closed-loop gains up to 100× at 50 kHz, suitable for anti-aliasing and reconstruction filters |
| Total Harmonic Distortion + Noise | 0.003% at 1 kHz - meets pro-audio THD requirements for line-level mixing and monitoring paths |
Pinout & Package
TL074CDBR is supplied in a 14-pin SOIC (D) package with standard JEDEC MS-012AC dimensions (8.65 mm × 3.91 mm, 1.27 mm pitch), rated for 0°C to +70°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of first amplifier - drives 10 kΩ minimum load; limited to ±13.5 V swing with ±15 V supplies |
| 2 | 1IN− | Inverting input of first amplifier - high-impedance JFET node; requires matched trace routing to minimize offset drift |
| 3 | 1IN+ | Noninverting input of first amplifier - accepts common-mode voltages up to VCC+, enabling single-supply sensor buffering |
| 4 | VCC+ | Positive power supply - must be decoupled with ≥0.1 μF ceramic capacitor placed within 5 mm of pin |
| 5 | 2IN+ | Noninverting input of second amplifier - electrically isolated from other sections; no shared substrate coupling |
| 6 | 2IN− | Inverting input of second amplifier - identical bias and noise characteristics as Pin 2 |
| 7 | 2OUT | Output of second amplifier - same drive capability and short-circuit protection as Pin 1 |
| 8 | VCC− | Negative power supply - return path for all four amplifiers; star grounding recommended |
| 9 | 3OUT | Output of third amplifier - independent thermal dissipation; no derating required when all four channels operate simultaneously |
| 10 | 3IN+ | Noninverting input of third amplifier - supports DC-coupled configurations with input common-mode down to VCC− + 1.5 V |
| 11 | VCC− | Shared negative supply rail - connects internally to all amplifier sections; not a separate ground reference |
| 12 | 3IN− | Inverting input of third amplifier - symmetrical layout critical to maintain CMRR >90 dB across temperature |
| 13 | 4IN− | Inverting input of fourth amplifier - matches Pin 2/6/12 in offset voltage drift (±2 µV/°C typical) |
| 14 | 4OUT | Output of fourth amplifier - capable of sourcing/sinking ±26 mA short-circuit current with thermal foldback |
Key Features
| Feature | Design Value |
|---|---|
| Low input bias current | ≤200 pA enables accurate integration and high-Z sensor interfacing without leakage-induced errors |
| Wide supply range | ±2.25 V to ±20 V supports both low-voltage portable designs and high-dynamic-range industrial signal chains |
| Output short-circuit protection | Internal current limiting prevents latch-up or permanent damage during accidental output shorts |
| EMI/RF filtering | Integrated on-chip filters suppress 1 GHz interference, reducing need for external ferrite beads in EMC-critical layouts |
| High CMRR | ≥90 dB over 0°C–70°C ensures rejection of power supply ripple and ground bounce in multi-rail systems |
Applications
| Pro Audio Mixer Channel Strip | Battery Test Equipment Signal Conditioning |
|---|---|
Use Scenario: Amplifying microphone preamp outputs and line-level instrument signals before ADC sampling in a 16-channel analog console. IC Role / Device Role / Timing Role: Quad op-amp providing simultaneous gain, filtering, and level-shifting for four independent audio paths. Use Value: 0.003% THD+N and 37 nV/√Hz noise preserve tonal integrity across full 20 Hz–20 kHz bandwidth without audible artifacts. | Use Scenario: Conditioning voltage/current feedback signals from Li-ion cell testers during charge/discharge cycling. IC Role / Device Role / Timing Role: Precision buffer and difference amplifier converting mV-level sense resistor drops into clean 0–5 V ADC inputs. Use Value: ±10 mV max input offset and ±2 µV/°C drift ensure <0.1% measurement error across 0–40°C lab environments. |
| Solar Inverter String Monitoring | Motor Drive Current Sensing |
Use Scenario: Isolating and scaling string voltage and current measurements in central PV inverters with 1000 V DC bus. IC Role / Device Role / Timing Role: High-common-mode-input amplifier front-ending isolated sigma-delta modulators. Use Value: Common-mode input range to VCC+ allows direct connection to high-side shunt resistors without level-shifters or transformers. | Use Scenario: Amplifying low-side shunt resistor signals in three-phase AC servo drives operating at 20 kHz PWM frequencies. IC Role / Device Role / Timing Role: Fast-settling (0.56 µs to 0.1%) gain stage feeding current-loop controllers. Use Value: 20 V/μs slew rate and 5.25 MHz GBW support accurate reconstruction of distorted current waveforms under heavy load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad JFET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL074CDR | Same SOIC-14 package and electrical specs; differs only in tape-and-reel packaging (DBR = 2500-unit reel, DR = 2000-unit reel) | No functional or performance difference; identical use in audio, test, and industrial signal chains | Select TL074CDR for smaller batch procurement or legacy BOM alignment where reel size affects SMT line setup |
| OPA4134UA | Lower input voltage noise (8 nV/√Hz), higher quiescent current (4 mA/ch), and wider supply range (±4 V to ±18 V); SOIC-14 compatible footprint | Better suited for ultra-low-noise microphone preamps but less optimal for battery-powered instruments due to higher power draw | Choose OPA4134UA when THD+N <0.0005% and noise floor below 10 nV/√Hz are mandatory, accepting 60% higher supply current |
Compared with TL074CDR, TL074CDBR offers identical performance in a larger reel format ideal for high-volume production, while OPA4134UA trades power efficiency for superior noise and distortion-making it appropriate only where those parameters dominate the design trade-off.
Availability
TL074CDBR is available at Aetrix Electronics and suitable for pro audio mixer development, battery test equipment manufacturing, and solar inverter string monitoring requiring stable component supply across extended production cycles.
Supply support for TL074CDBR 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TL07x family was engineered for cost-sensitive, high-fidelity analog signal paths-emphasizing low noise, JFET input impedance, and robust DC precision in audio, instrumentation, and power conversion systems.
FAQ
What is the maximum supply voltage rating for TL074CDBR?
The TL074CDBR supports a total supply voltage (VCC+ to VCC−) of up to 40 V, corresponding to ±20 V dual supplies or 4.5 V to 40 V single-ended operation. Absolute maximum ratings specify 42 V for non-NS/PS packages, but TI recommends staying within 40 V for long-term reliability and specified performance compliance across the 0°C to +70°C temperature range.
Does TL074CDBR include internal ESD protection?
Yes, TL074CDBR incorporates integrated ESD protection rated at ±2000 V HBM and ±1000 V CDM per JEDEC standards. This eliminates the need for external TVS diodes in most board-level ESD scenarios, though system-level IEC 61000-4-2 compliance still requires proper PCB layout practices including guard rings and controlled trace impedance.
Can TL074CDBR drive capacitive loads directly?
TL074CDBR is characterized to drive up to 300 pF capacitive loads stably without oscillation, provided the feedback network remains purely resistive and the output is not heavily loaded. For loads exceeding 200 pF, TI recommends adding a small series resistor (10–47 Ω) between the output and capacitance to isolate the pole and maintain phase margin above 56°.
What is the input offset voltage specification for TL074CDBR?
The TL074CDBR has a maximum input offset voltage of 10 mV at 25°C, with a typical value of 3 mV. Over its full operating temperature range (0°C to +70°C), the offset voltage drift is ±18 µV/°C, resulting in worst-case drift of ±1.26 mV across the range-critical for DC-coupled precision applications like battery voltage monitoring.
Is TL074CDBR pin-compatible with other TL074 variants?
Yes, TL074CDBR shares identical pinout and footprint with all TL074x devices in SOIC-14 (D) package-including TL074CDR, TL074IDR, and TL074ACDR. No PCB redesign is needed when substituting within the same package variant, though users must verify that the temperature grade (C = 0°C–70°C) and electrical bin (C vs A/B/H) meet system requirements.
TL074CDBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SSOP (0.209", 5.30mm 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:
- -
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SSOP
TL074CDBR FAQ
1.How can I place an order for TL074CDBR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL074CDBR 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 TL074CDBR reliable?
The price and inventory of TL074CDBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL074CDBR is usually 5 days.
3.What payment methods are accepted for TL074CDBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL074CDBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL074CDBR?
TL074CDBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL074CDBR 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 TL074CDBR?
For technical support, including TL074CDBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL074CDBR requirements.
6.How does Aetrix verify that TL074CDBR is sourced from the original manufacturer or authorized distributors?
All TL074CDBR 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 TL074CDBR meets industry standards.
7.What is the process for return or replacement of TL074CDBR?
All TL074CDBR units undergo pre-shipment inspection (PSI). If there is an issue with TL074CDBR, 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 TL074CDBR part is unused and in its original packaging.
Return procedure for TL074CDBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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