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Texas Instruments TL074BCN
- Part No.:
- TL074BCN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TL074BCN.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:715
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Product details
Overview
TL074BCN from Texas Instruments is a quad JFET-input operational amplifier optimized for low-noise, high-slew-rate signal conditioning in audio and precision analog systems. It delivers 20 V/μs slew rate, 37 nV/√Hz input voltage noise at 1 kHz, ±2.25 V to ±20 V dual-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.
For engineers reviewing the TL074BCN datasheet, TL074BCN pinout, TL074BCN application, or TL074BCN equivalent, key selection criteria include its FET-input architecture for ultra-low bias current (±120 pA typ), quad-channel integration in PDIP-14, guaranteed 5.25 MHz gain-bandwidth product, and compatibility with ±15 V industrial supply rails.
Technical Context
The TL074BCN implements a high-impedance JFET differential input stage followed by a Class AB output stage, enabling wide common-mode input range including VCC+ and low distortion (0.003% THD+N). Its internal compensation ensures unity-gain stability with capacitive loads up to 300 pF.
Designed for DC-coupled and AC-coupled amplification, filtering, and active signal conditioning, the device supports single-ended and differential configurations. Its 937.5–1125 μA per-amplifier quiescent current balances performance and power efficiency in multi-channel systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 20 V/μs - enables faithful reproduction of fast transients in audio and pulse applications without slew-induced distortion |
| Input Voltage Noise | 37 nV/√Hz at 1 kHz - critical for low-noise preamplification in microphone and sensor front-ends |
| Gain-Bandwidth Product | 5.25 MHz - supports stable unity-gain buffers and 2nd-order filters up to ~800 kHz |
| Input Bias Current | ±120 pA (typ) - preserves signal integrity in high-impedance source networks (e.g., piezoelectric sensors) |
| Supply Voltage Range | ±2.25 V to ±20 V - accommodates standard ±15 V industrial rails and low-voltage portable designs |
| Common-Mode Input Range | Includes VCC+ - allows direct interfacing with rail-referenced signals without level-shifting circuitry |
| Quiescent Current | 937.5–1125 μA per amplifier - enables four independent channels in <5 mA total supply current |
Pinout & Package
TL074BCN is supplied in a 14-pin plastic dual in-line package (PDIP-14), with through-hole mounting and industry-standard footprint. Pin spacing is 0.1 inch (2.54 mm), body width 0.3 inch (7.62 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of first amplifier - drives external load or next stage; capable of ±12 V swing into 10 kΩ |
| 2 | 1IN− | Inverting input of first amplifier - accepts feedback or inverted signal path; high-impedance JFET node |
| 3 | 1IN+ | Noninverting input of first amplifier - connects to reference or signal source; common-mode range includes VCC+ |
| 4 | VCC− | Negative supply rail - must be decoupled locally; shared across all four amplifiers |
| 5 | 2IN+ | Noninverting input of second amplifier - electrically isolated but thermally coupled to other channels |
| 6 | 2IN− | Inverting input of second amplifier - matches pinout symmetry for layout consistency |
| 7 | 2OUT | Output of second amplifier - identical electrical specs to Pin 1; supports independent channel routing |
| 8 | VCC+ | Positive supply rail - supplies all four amplifiers; requires local 0.1 μF ceramic bypass |
| 9 | 3OUT | Output of third amplifier - enables compact multi-stage designs (e.g., 3-opamp instrumentation amp) |
| 10 | 3IN− | Inverting input of third amplifier - maintains consistent pin numbering across all four sections |
| 11 | 3IN+ | Noninverting input of third amplifier - supports cascaded gain stages with minimal board real estate |
| 12 | 4IN+ | Noninverting input of fourth amplifier - completes quad symmetry; usable as buffer or comparator input |
| 13 | 4IN− | Inverting input of fourth amplifier - compatible with standard op-amp feedback topologies |
| 14 | 4OUT | Output of fourth amplifier - fully specified for drive capability, settling time, and short-circuit protection |
Key Features
| Feature | Design Value |
|---|---|
| Low input bias current | ±120 pA typical - minimizes voltage error in high-source-impedance circuits like photodiode transimpedance amps |
| Output short-circuit protection | ±26 mA continuous safe limit - prevents latch-up or thermal runaway during fault conditions |
| Wide supply range | ±2.25 V to ±20 V - eliminates need for dedicated voltage regulators in mixed-supply systems |
| Low total harmonic distortion | 0.003% (typ) at 1 kHz - meets fidelity requirements for professional audio signal paths |
| Integrated EMI/RF filters | 53 dB EMI rejection at 1 GHz - suppresses RF interference in noisy industrial environments |
Applications
| Pro Audio Mixer Channel | Battery Test Equipment |
|---|---|
Use Scenario: Signal buffering, summing, and equalization in analog mixing consoles with discrete mic preamps. IC Role / Device Role / Timing Role: Quad configuration implements input buffer, EQ section, level control, and output driver in one IC. Use Value: 37 nV/√Hz noise floor and 0.003% THD+N preserve dynamic range and clarity across 20 Hz–20 kHz bandwidth. | Use Scenario: Precision voltage/current sourcing and measurement during battery charge/discharge cycling. IC Role / Device Role / Timing Role: Four independent amplifiers condition sensor signals, drive DAC outputs, isolate feedback loops, and monitor cell voltages. Use Value: ±120 pA input bias current avoids loading high-impedance shunt resistors and reference dividers. |
| Solar Inverter String Monitoring | AC Motor Drive Feedback |
Use Scenario: Isolated DC voltage sensing and string-level fault detection in photovoltaic central inverters. IC Role / Device Role / Timing Role: Amplifies isolated voltage divider outputs before ADC sampling; provides overvoltage comparator hysteresis. Use Value: Rail-to-rail common-mode input (including VCC+) accepts signals referenced directly to bus rails without level shifters. | Use Scenario: Current sensing and phase voltage reconstruction in three-phase IGBT gate driver feedback loops. IC Role / Device Role / Timing Role: Condition shunt amplifier outputs, filter PWM noise, and provide offset-compensated feedback to controller. Use Value: 20 V/μs slew rate ensures accurate tracking of fast-switching motor currents without phase lag. |
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 |
|---|---|---|---|
| TL074CN | Same PDIP-14 package; wider offset voltage spec (3–10 mV vs. 2–3 mV for TL074BCN); same noise and slew rate | Lower-cost option where tighter initial offset isn't required; suitable for non-critical gain stages | Select TL074CN when budget constraints outweigh need for <3 mV max offset |
| OPA4134UA | Higher precision: 0.5 mV max offset, 8 nV/√Hz noise, 20 V/μs slew; SOIC-14; higher cost and quiescent current (4 mA/ch) | Required for ultra-low-distortion audio mastering or medical-grade signal chains | Choose OPA4134UA only when sub-1 mV offset and <10 nV/√Hz noise are mandatory design requirements |
Compared with TL074CN and OPA4134UA, TL074BCN offers the optimal balance of low noise (37 nV/√Hz), tight initial offset (≤3 mV), and cost-effective PDIP packaging-making it ideal for production audio and industrial test equipment where performance and manufacturability must coexist.
Availability
TL074BCN is available at Aetrix Electronics and suitable for pro audio mixer design, battery test instrumentation, solar inverter monitoring, and AC motor drive feedback requiring stable component supply across long production cycles.
Supply support for TL074BCN 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 specifically for high-fidelity audio, precision instrumentation, and rugged industrial signal conditioning-emphasizing low noise, JFET input impedance, and wide supply flexibility.
FAQ
What is the maximum operating temperature range for TL074BCN?
The TL074BCN is rated for operation from 0°C to +70°C ambient temperature, matching the commercial-grade TL07xC series specification. It is not qualified for extended industrial (–40°C to +85°C) or military (–55°C to +125°C) temperature ranges-those require TL074I or TL074M variants respectively.
Does TL074BCN support single-supply operation?
Yes, TL074BCN supports single-supply operation from 4.5 V to 40 V. When operated on a single rail, the input common-mode range extends from (VCC−) + 1.5 V to VCC+, and output swing is typically within 210 mV of each rail under 10 kΩ load-enabling use in 5 V or 12 V systems with proper biasing.
What is the input offset voltage specification for TL074BCN?
The TL074BCN has a maximum input offset voltage of 3 mV at 25°C, with a typical value of 2 mV. This tighter spec distinguishes it from the standard TL074CN (max 10 mV) and reflects its "B" grade binning for improved DC precision in multi-stage analog signal paths.
Can TL074BCN drive capacitive loads directly?
TL074BCN is characterized for stable operation with capacitive loads up to 300 pF. For larger loads (e.g., >500 pF), external isolation resistance (typically 10–100 Ω in series with the output) is recommended to prevent peaking or oscillation-especially in unity-gain follower configurations.
Is TL074BCN pin-compatible with other TL074 variants in PDIP-14?
Yes, TL074BCN is fully pin-compatible with all TL074x variants offered in the 14-pin PDIP package-including TL074CN, TL074IN, and TL074MN. Electrical differences (offset, drift, temperature range) do not affect pinout, footprint, or basic functional connectivity.
TL074BCN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- 2 mV
- Current - Supply:
- 1.4mA (x4 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TL074BCN FAQ
1.How can I place an order for TL074BCN through Aetrix?
Please submit a Request for Quotation (RFQ) for TL074BCN 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 TL074BCN reliable?
The price and inventory of TL074BCN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL074BCN is usually 5 days.
3.What payment methods are accepted for TL074BCN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL074BCN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL074BCN?
TL074BCN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL074BCN 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 TL074BCN?
For technical support, including TL074BCN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL074BCN requirements.
6.How does Aetrix verify that TL074BCN is sourced from the original manufacturer or authorized distributors?
All TL074BCN 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 TL074BCN meets industry standards.
7.What is the process for return or replacement of TL074BCN?
All TL074BCN units undergo pre-shipment inspection (PSI). If there is an issue with TL074BCN, 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 TL074BCN part is unused and in its original packaging.
Return procedure for TL074BCN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL074BCN Tags
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LM358DR
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