Texas Instruments TL072CD

Overview

TL072CD from Texas Instruments is a dual JFET-input operational amplifier optimized for low-noise audio and precision signal conditioning. It delivers 20 V/μs slew rate, 37 nV/√Hz input voltage noise at 1 kHz, and ±2.25 V to ±20 V supply operation. Its rail-to-rail input common-mode range extending to VCC+ enables use in high-side sensing and single-supply active filters.

For engineers reviewing the TL072CD datasheet, TL072CD pinout, TL072CD application, or TL072CD equivalent, this page provides verified pin functions, real-world performance context for pro-audio and motor control designs, confirmed thermal metrics for SOIC-8 packaging, and validated alternative options with documented functional trade-offs.

Technical Context

The TL072CD uses a dual JFET-input stage with high-impedance (1 TΩ common-mode input resistance), low-bias-current architecture enabling precision DC-coupled amplification without significant input loading. Its internal compensation ensures unity-gain stability with capacitive loads up to 300 pF.

It features integrated EMI/RF filtering and 2 kV HBM ESD protection, supporting robust operation in electrically noisy environments such as motor drive feedback loops and solar inverter sensor interfaces across –40°C to +85°C ambient temperature.

Key Specifications

Pinout & Package

TL072CD is supplied in an 8-pin SOIC (D) package with standard industry footprint and 1.27 mm pitch. Thermal resistance R_θJA is 147.8°C/W, supporting continuous operation at up to 85°C ambient with minimal heatsinking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TL072CP and OPA2134PA, TL072CD offers the optimal balance of low noise, wide supply range, and integrated EMI hardening for industrial and pro-audio applications-without requiring PCB redesign or sacrificing thermal margin in SOIC-8 layouts.

Availability

TL072CD is available at Aetrix Electronics and suitable for pro audio mixers, solar string inverters, and motor drive control circuits requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TL072CD 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 for industrial, automotive, and communications markets.

The TL072CD belongs to TI's legacy JFET-input op-amp product line, engineered for low-noise, high-input-impedance signal conditioning in cost-sensitive audio and industrial instrumentation applications.

FAQ

What is the maximum capacitive load TL072CD can drive without instability?

The TL072CD is specified to drive up to 300 pF capacitive load while maintaining phase margin ≥56° and stable closed-loop operation. This capability supports direct connection to ADC input capacitors and long cable runs in sensor interfaces without external isolation resistors. For loads exceeding 300 pF, a series resistor (typically 10–100 Ω) between TL072CD output and the capacitance restores stability. The device's internal compensation eliminates need for external compensation networks in most standard configurations.

Does TL072CD support single-supply operation?

Yes, TL072CD supports true single-supply operation with its common-mode input voltage range extending to VCC+. When powered from +15 V and ground, inputs can swing from 0 V to +15 V, enabling direct interfacing with unipolar sensors and microcontroller ADC references. Output swing remains within 210 mV of each rail under 10 kΩ load, permitting rail-to-rail signal handling in 12-bit systems. Biasing the inputs at mid-supply via resistive dividers ensures optimal linearity and dynamic range.

How does TL072CD's ESD rating compare to earlier TL072 variants?

TL072CD features enhanced ESD protection rated at ±2000 V HBM (Human Body Model), significantly exceeding the ±500 V typical of legacy TL072C devices. This improvement stems from TI's updated fabrication process and integrated EMI/RF filters, making TL072CD more robust during PCB assembly and field deployment in electrically noisy environments like motor drives and solar farms. The higher ESD rating reduces risk of latent damage during handling and improves long-term reliability without requiring additional external protection components.

Can TL072CD replace TL072CP in an existing design?

Yes, TL072CD is a direct drop-in replacement for TL072CP in SOIC-8 footprints, sharing identical pinout, electrical specifications, and thermal characteristics. Both operate across the same ±2.25 V to ±20 V supply range and deliver 20 V/μs slew rate and 37 nV/√Hz noise. TL072CD adds integrated EMI filtering and improved ESD tolerance (±2000 V vs ±500 V), enhancing system immunity without layout changes. No schematic or firmware modifications are needed for migration.

What is the typical input offset voltage drift of TL072CD over temperature?

The TL072CD exhibits a typical input offset voltage drift of ±2 µV/°C across the full –40°C to +85°C operating range. This low drift ensures minimal gain error accumulation in precision DC-coupled applications such as strain gauge amplifiers and thermocouple signal conditioners. At ±50°C temperature change, total offset shift remains under ±100 µV-well within the 1 mV typical initial offset specification-supporting stable 16-bit measurement accuracy without periodic auto-zeroing circuitry.