Texas Instruments TL074IDG4

Overview

TL074IDG4 from Texas Instruments is a quad JFET-input operational amplifier optimized for low-noise, high-slew-rate signal conditioning in 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 where low distortion (0.00012% THD+N) and stable DC performance are critical.

For engineers reviewing the TL074IDG4 datasheet, TL074IDG4 pinout, TL074IDG4 application, or TL074IDG4 equivalent, this page provides verified electrical specifications, package-validated pin functions, real-world application context for audio and power-test circuits, and two confirmed alternative parts with documented functional and thermal trade-offs.

Technical Context

The TL074IDG4 implements a high-impedance JFET differential input stage followed by a Class AB output stage, enabling low input bias current (±1 pA typ) and wide common-mode range including VCC+. Its internal compensation ensures unity-gain stability with capacitive loads up to 300 pF while maintaining 56° phase margin.

It operates across –40°C to +125°C with 1.5 kV HBM ESD rating and integrated EMI/RF filters. The device supports single-supply (4.5 V to 40 V) or split-supply (±2.25 V to ±20 V) configurations, and its open-loop gain exceeds 118 dB with 5.25 MHz gain-bandwidth product.

Key Specifications

Pinout & Package

The TL074IDG4 is packaged in a 14-pin SOIC (D package) with standard JEDEC outline and 1.27 mm pitch. This surface-mount package supports automated assembly and offers thermal resistance RθJA = 114.2°C/W under typical PCB conditions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TL074CDR, TL074IDG4 adds 1 kV HBM ESD headroom, EMI filtering, and extended temperature support-critical for field-deployed inverters. Versus OPA4134UA, TL074IDG4 trades 29 nV/√Hz higher noise for 3× lower supply current and 2× wider operating voltage, making it more suitable for multi-channel industrial signal chains.

Availability

TL074IDG4 is available at Aetrix Electronics and suitable for pro audio mixer design, battery test instrumentation, solar string inverter signal conditioning, and AC motor drive current sensing requiring stable component supply across extended temperature and voltage ranges.

Supply support for TL074IDG4 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 industrial-grade signal chain solutions.

The TL07x family was engineered for cost-sensitive yet performance-demanding analog applications-including audio, test equipment, and power electronics-where JFET input architecture delivers optimal balance of speed, noise, and input impedance.

FAQ

What is the maximum capacitive load the TL074IDG4 can drive stably?

The TL074IDG4 is characterized to drive up to 300 pF capacitively without oscillation, thanks to internal compensation and 56° phase margin at unity gain. For loads exceeding 300 pF, external series resistance (≥100 Ω) at the output is recommended to maintain stability in applications like cable driving or ADC input buffering.

Does the TL074IDG4 support single-supply operation?

Yes, the TL074IDG4 supports true single-supply operation from 4.5 V to 40 V. Its common-mode input range extends to VCC+, allowing the noninverting input to be biased directly at the positive rail-enabling high-side sensing and rail-to-rail input configurations without level-shifting circuitry.

How does the TL074IDG4's EMI rejection compare to older TL074 variants?

The TL074IDG4 integrates on-die EMI/RF filters that provide 53 dB rejection at 1 GHz-significantly improved over legacy TL074 versions lacking such filtering. This makes TL074IDG4 more robust in noisy environments like motor drives and solar inverters where RF coupling into analog nodes is common.

What is the guaranteed input offset voltage specification for TL074IDG4 over temperature?

The TL074IDG4 guarantees ±5 mV maximum input offset voltage across its full operating range of –40°C to +125°C. At 25°C, typical offset is ±1 mV, with drift limited to ±2 µV/°C-enabling stable DC-coupled performance in temperature-varying industrial enclosures.

Can TL074IDG4 replace TL074CP in an existing design?

TL074IDG4 is not a direct drop-in replacement for TL074CP due to differences in temperature grade (–40°C to +125°C vs 0°C to 70°C), ESD rating (1.5 kV vs 500 V HBM), and EMI filtering. While pinout and basic functionality match, revalidation is required for thermal, reliability, and noise immunity in the target application.