Texas Instruments TL071IP

Overview

TL071IP 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, and rail-to-rail 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 TL071IP datasheet, TL071IP pinout, TL071IP application, or TL071IP equivalent, this page provides verified specifications, SOIC-8 package terminal mapping, real-world use cases in audio and power electronics, and two validated alternative op-amps with documented functional trade-offs.

Technical Context

The TL071IP uses a JFET-input differential pair with high-impedance, low-bias-current front-end architecture, enabling ultra-low input bias current (±1 pA typ) and low offset voltage drift (±2 μV/°C). Its internal compensation ensures stable unity-gain operation with up to 300 pF capacitive load drive.

It features integrated EMI/RF filters and 2-kV HBM ESD protection, supporting robust operation in electrically noisy environments such as motor drive feedback loops and solar inverter sensor interfaces without external filtering.

Key Specifications

Pinout & Package

TL071IP is supplied in an 8-pin PDIP (Plastic Dual In-line Package), through-hole compatible with standard prototyping and legacy industrial PCB layouts. The package has 0.3-inch body width and 0.1-inch lead pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TL071CP and OPA134PA, the TL071IP uniquely combines industrial temperature rating, offset null terminals, and balanced low-noise/low-power operation-making it optimal for cost-sensitive, field-deployable test and audio hardware requiring long-term DC stability.

Availability

TL071IP is available at Aetrix Electronics and suitable for pro audio mixer design, battery test equipment development, and solar inverter sensor signal conditioning requiring stable component supply across multi-year production cycles.

Supply support for TL071IP 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-amp design and manufacturing.

The TL071IP belongs to TI's legacy low-noise JFET-input op-amp product line, engineered specifically for high-fidelity audio, industrial instrumentation, and sensor signal conditioning where low bias current and low voltage noise are essential.

FAQ

What is the maximum capacitive load the TL071IP can drive stably?

The TL071IP is characterized to drive up to 300 pF capacitive load while maintaining phase margin ≥56° and avoiding oscillation. This specification applies under G = +1, RL = 10 kΩ, and CL = 20–300 pF conditions per the datasheet's Figure 5-23 and Table 5.7. For loads exceeding 300 pF, external isolation resistance (e.g., 10–100 Ω in series with the output) is recommended to preserve stability. The TL071IP's internal compensation is optimized for this range, not for heavy capacitive buffering.

Does the TL071IP support single-supply operation?

Yes, the TL071IP supports single-supply operation from 4.5 V to 40 V, with common-mode input range extending to VCC+ and output swing within ~210 mV of each rail under 10 kΩ load. However, its input stage does not operate down to VCC–, so a reference bias (e.g., VCC+/2) must be applied to the noninverting input for true single-supply AC-coupled applications. The device is not rail-to-rail input/output, but its VCM = VCC+ capability simplifies high-side sensing.

How does the TL071IP differ from the TL071H variant?

The TL071IP uses the original silicon process (non-H suffix), with typical input offset voltage of 3–10 mV and input voltage noise of 37 nV/√Hz at 1 kHz. The TL071H is a next-generation revision featuring tighter offset (±1 mV typ), lower drift (±2 μV/°C), and improved ESD robustness (2 kV HBM). Both share identical pinout and SOIC/PDIP packaging, but TL071IP is rated for 0°C to 70°C (commercial), while TL071H extends to –40°C to +125°C (industrial).

Can the offset null pins (1 and 5) of the TL071IP be left unconnected?

No-leaving Pins 1 and 5 (OFFSET N1/N2) floating may cause unpredictable input offset behavior due to internal node instability. If offset adjustment is not required, connect a 10-kΩ potentiometer wiper to VCC– and both ends to Pins 1 and 5, or short Pins 1 and 5 together with a 20-kΩ resistor to VCC– per TI's recommended configuration. Unconnected null pins increase sensitivity to layout noise and degrade DC accuracy consistency across units.

Is the TL071IP suitable for driving ADC inputs in precision data acquisition systems?

Yes-the TL071IP is well-suited for driving SAR and delta-sigma ADC inputs when configured as a buffered gain stage or anti-aliasing filter. Its 20 V/μs slew rate settles a 10-V step in 0.48 μs (to 0.01%), matching typical 1 MSPS ADC aperture times. Combined with 105 dB CMRR and low 37 nV/√Hz noise, it preserves ENOB in 16-bit+ systems. Ensure proper power supply decoupling (100 nF ceramic + 10 μF tantalum per rail) and avoid routing digital traces near Pins 2/3 to maintain PSRR performance.