Texas Instruments TL074CN

Overview

TL074CN 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 deployed in pro-audio mixers and battery test equipment where FET-input stability and low distortion (0.003% THD+N) are critical.

For engineers reviewing the TL074CN datasheet, TL074CN pinout, TL074CN application, or TL074CN equivalent, key selection criteria include its quad-channel FET-input architecture, 14-pin PDIP package, guaranteed 5.25 MHz gain-bandwidth product, and compatibility with ±15 V industrial supply rails - all validated across –40°C to +85°C commercial temperature range.

Technical Context

The TL074CN uses a JFET-input differential pair with cascode gain stage and Class AB output stage, enabling high input impedance (>1 TΩ common-mode resistance), low input bias current (±120 pA typ), and wide common-mode range inclusive of VCC+. Its internal compensation ensures unity-gain stability with capacitive loads up to 300 pF.

It operates from split supplies (±2.25 V to ±20 V) or single supply (4.5 V to 40 V), supports rail-sensing inputs, and features output short-circuit protection. The device exhibits 118 dB open-loop gain and 56° phase margin under standard 10 kΩ/20 pF load conditions.

Key Specifications

Pinout & Package

TL074CN is supplied in a 14-pin plastic dual in-line package (PDIP, N package), through-hole mountable with 0.3-inch body width and standard 0.1-inch pin pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad JFET-input operational amplifier applications.

Compared with TL074CDR and RC4136N, TL074CN offers the optimal balance of legacy PDIP accessibility, proven 20 V/μs slew rate, and 37 nV/√Hz noise - making it the preferred choice for lab validation, repair, and low-volume industrial analog designs where through-hole reliability matters.

Availability

TL074CN is available at Aetrix Electronics and suitable for pro-audio mixer design, battery test instrumentation, and solar inverter monitoring requiring stable component supply and long-term obsolescence management.

Supply support for TL074CN 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, with over 50 years of op-amp innovation and manufacturing excellence.

The TL07xx family was engineered for cost-sensitive, high-fidelity analog signal paths - emphasizing low noise, JFET input robustness, and wide supply flexibility in industrial, audio, and test equipment.

FAQ

What is the maximum supply voltage rating for TL074CN?

The TL074CN supports a total supply voltage (VCC+ to VCC–) of up to 40 V, corresponding to ±20 V dual supply or 4.5 V to 40 V single supply operation. Absolute maximum ratings specify 42 V for non-NS/PS packages, but TI recommends staying within 40 V for reliable long-term operation per datasheet Section 5.1.

Does TL074CN include input offset voltage trimming pins?

No, TL074CN does not provide offset null pins. Unlike earlier TL071 variants (e.g., TL071CP with OFFSET N1/N2), the TL074CN quad package omits dedicated offset adjustment terminals. Designers must rely on its specified ±4 mV typical input offset or use external calibration techniques.

Can TL074CN drive a 600 Ω audio load directly?

TL074CN is not optimized for 600 Ω line-driving. Its output swing is specified into ≥2 kΩ loads (±10 V min), and driving 600 Ω risks excessive current (beyond ±26 mA short-circuit limit) and degraded THD+N. Use an external buffer stage or select a purpose-built line driver IC for 600 Ω interface.

Is TL074CN RoHS compliant and lead-free?

Yes, TL074CN is RoHS compliant and lead-free per TI's packaging standards. The "N" suffix denotes PDIP packaging with lead-free finish and halogen-free molding compound, meeting JEDEC J-STD-609 Category 1 moisture sensitivity and IPC/JEDEC J-STD-020 reflow profiles.

How does TL074CN compare to TL074H in noise performance?

TL074CN and TL074H share identical 37 nV/√Hz input voltage noise density at 1 kHz per datasheet Sections 5.7 and 5.9. The "H" suffix denotes newer die fabrication with improved ESD (2 kV HBM) and extended temperature range (–40°C to +125°C), but noise, slew rate, and GBW remain unchanged between CN and H variants.