Texas Instruments TL071IDRG4

Overview

TL071IDRG4 from Texas Instruments is a single-channel, JFET-input operational amplifier optimized for low-noise audio and precision analog signal conditioning. 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, 1 mV typical input offset voltage, and 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 TL071IDRG4 datasheet, TL071IDRG4 pinout, TL071IDRG4 application, or TL071IDRG4 equivalent, this page provides verified package mapping (SOIC-8), validated pin functions, confirmed electrical specifications per TI SLOS080W Rev. July 2025, and two rigorously cross-referenced alternative parts with documented functional and application-level differences.

Technical Context

The TL071IDRG4 implements a high-impedance JFET differential input stage followed by a Class AB output stage, enabling rail-to-rail common-mode input (including VCC+) and low input bias current (±1 pA typ). Its internal compensation ensures unity-gain stability with capacitive loads up to 300 pF.

It operates across –40°C to +125°C with 940 μA/ch quiescent current, supports supply voltages from ±2.25 V to ±20 V, and features integrated EMI/RF filters plus 2-kV HBM ESD protection - making it suitable for industrial and audio-grade environments demanding robustness and low distortion (0.00012% THD+N).

Key Specifications

Pinout & Package

TL071IDRG4 is packaged in an 8-pin SOIC (D package) with industry-standard pinout and creepage/clearance compliant with IPC-7351B. The device uses a surface-mount gull-wing lead form with 1.27 mm pitch and 1.75 mm body width.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TL071CP and OPA1611AIDR, TL071IDRG4 uniquely balances industrial temperature operation (–40°C to +125°C), integrated EMI rejection, and SOIC-8 footprint - making it optimal for production-grade embedded systems requiring reliability, noise immunity, and board-space efficiency without redesign.

Availability

TL071IDRG4 is available at Aetrix Electronics and suitable for pro audio mixer design, solar inverter monitoring, and battery test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TL071IDRG4 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, embedded processing, and connectivity technologies with over 90 years of innovation in precision analog ICs.

The TL071 family was engineered for high-fidelity, low-noise analog signal processing in audio, instrumentation, and industrial control - emphasizing JFET input performance, wide supply flexibility, and robustness in real-world EMI environments.

FAQ

What is the maximum operating temperature range for TL071IDRG4?

The TL071IDRG4 is specified for operation from –40°C to +125°C, matching the TL071H grade per TI SLOS080W Rev. July 2025. This extended industrial temperature range ensures reliable performance in automotive under-hood modules, solar inverter control boards, and industrial PLC analog I/O stages where ambient temperatures exceed standard commercial limits. The TL071IDRG4 maintains its 20 V/μs slew rate and 37 nV/√Hz noise performance across this full range.

Does TL071IDRG4 support single-supply operation?

Yes, TL071IDRG4 supports true single-supply operation due to its common-mode input voltage range extending to VCC+. When powered from +15 V and GND, the noninverting input accepts signals from 0 V to +15 V. However, output swing is limited to ~115 mV above GND and ~210 mV below VCC+, so proper level-shifting or rail-splitting is required for full-scale AC coupling. Its internal architecture does not include rail-to-rail output, unlike newer CMOS op-amps.

What is the purpose of the NC pins on TL071IDRG4 (pins 5, 6, and 8)?

Pins 5, 6, and 8 on TL071IDRG4 are designated No Connect (NC) per TI's official pin function table (Table 4-1, SLOS080W). These pins have no internal connection and must remain unconnected on PCB layout. They exist for mechanical symmetry and package compatibility across the TL07x family - for example, TL072 and TL074 variants use these positions for additional channels. Routing or soldering to NC pins may cause parasitic coupling or violate TI's recommended layout practices.

How does TL071IDRG4 compare to TL071CDR in terms of noise and offset performance?

TL071IDRG4 (H-grade) offers superior performance versus TL071CDR (C-grade): input offset voltage is ±1 mV typical (vs ±3 mV), input voltage noise is 37 nV/√Hz at 1 kHz (identical), and offset drift is ±2 µV/°C (vs ±18 µV/°C). The H-grade also adds integrated EMI/RF filters and 2-kV HBM ESD protection - critical for noisy industrial environments. Both share the same SOIC-8 package and pinout, enabling direct replacement where temperature and stability requirements justify the upgrade.

Can TL071IDRG4 drive capacitive loads up to 300 pF without oscillation?

Yes, TL071IDRG4 is characterized to safely drive capacitive loads up to 300 pF while maintaining ≥56° phase margin and stable step response, per Section 5.7 of the TI datasheet. This capability is enabled by internal frequency compensation optimized for unity-gain stability. For loads >300 pF, external isolation resistance (e.g., 10–100 Ω in series with the output) is recommended to preserve stability - especially in high-impedance sensor buffering or cable-driving applications where TL071IDRG4 is commonly deployed.