TL074 Low Noise JFET Quad Operational Amplifier SOP-14

TL074 Low Noise JFET Quad Operational Amplifier SOP-14 is a high-speed, quad-channel integrated circuit that combines high-voltage JFET and bi-polar transistors in a single monolithic package. This versatile operational amplifier features high slew rates, low input bias, and an exceptionally low offset current, making it an ideal choice for high-fidelity audio and precision signal processing. Furthermore, the JFET-input stage ensures high input impedance, which prevents signal loading in sensitive sensor applications. Consequently, engineers frequently select the TL074 for circuits requiring low harmonic distortion and minimal noise interference. Therefore, you can achieve superior linear performance by integrating this SOP-14 surface-mount component into your next professional-grade electronic design.

Key Features:

• Low Noise Interference: The device offers a low noise floor, typically 18 nV/√Hz, which ensures clean signal amplification for audio pre-amps.
• High Slew Rate: It delivers a fast response time with a slew rate of 13 V/μs, allowing the amplifier to handle rapid signal changes without distortion.
• JFET Input Stage: High input impedance (typically 10¹² Ω) minimizes the effect of source resistance on the overall circuit accuracy.
• Internal Frequency Compensation: The chip includes internal compensation to maintain stability during operation, however, it still supports a wide unity-gain bandwidth of 3 MHz.
• Quad Configuration: This IC contains four independent operational amplifiers in a single SOP-14 package, saving significant PCB real estate.

Technical Specifications:

• Supply Voltage (V_CC): ±3 V to ±18 V (Dual supply) or up to 36 V (Single supply)
• Input Offset Voltage: 3 mV (Typical) to 10 mV (Maximum)
• Input Bias Current: 65 pA (Typical at 25°C)
• Common Mode Rejection Ratio (CMRR): 80 dB to 100 dB
• Gain Bandwidth Product: 3 MHz
• Total Harmonic Distortion (THD): < 0.003% (Typical)
• Operating Temperature Range: 0°C to +70°C (Commercial) or −40°C to +85°C (Industrial)

Mechanical Specifications:

• Package Type: SOP-14 (Small Outline Package)
• Mounting Type: Surface Mount Device (SMD/SMT)
• Lead Finish: Matte Tin or Lead-Free plating
• Encapsulation: Molded Plastic Case (UL 94 V-0 rated)

Dimensions:

• Body Length: ≈ 8.65 mm
• Body Width: ≈ 3.91 mm (Excluding leads)
• Total Width: ≈ 6.00 mm (Including leads)
• Lead Pitch: 1.27 mm (50 mil)
• Height: ≈ 1.75 mm

Pinout and Wiring:

• Pin 1, 7, 8, 14 (Outputs): Output terminals for Op-Amp 1, 2, 3, and 4 respectively.
• Pin 2, 6, 9, 13 (Inverting Inputs): Negative input terminals for each respective amplifier channel.
• Pin 3, 5, 10, 12 (Non-Inverting Inputs): Positive input terminals for each respective amplifier channel.
• Pin 4 (V_CC+): Positive power supply input.
• Pin 11 (V_CC− / GND): Negative power supply input or ground for single-supply configurations.

Datasheet Reference:

• Download Texas Instruments TL074 Datasheet

Commonly Used in:

• Audio Mixing Consoles: Engineers use the TL074 for low-noise pre-amplification and active equalization.
• Active Filters: It serves as a reliable building block for high-pass, low-pass, and band-pass filters in signal processing.
• Data Acquisition Systems: The high input impedance makes it ideal for buffering signals from high-impedance sensors.

Applications:

• Preamplifiers: Boosting low-level signals from microphones or musical instruments without adding significant noise.
• Voltage Followers: Utilizing the high input impedance to isolate different stages of a circuit.
• Oscillators: Creating stable sine or square wave generators for timing applications.
• Integrators and Differentiators: Performing mathematical operations on analog signals in control systems.

Equivalent Models:

• LF347: A high-speed JFET-input quad operational amplifier with very similar characteristics.
• TL084: A general-purpose JFET quad op-amp, however, it typically features a slightly higher noise floor than the TL074.
• MC33079: A high-quality alternative that offers low noise and high-speed performance for demanding audio tasks.

Package Includes:

• 1 x TL074 Low Noise JFET Quad Operational Amplifier SOP-14