Texas Instruments OPA4727AIPWR

Overview

OPA4727AIPWR from Texas Instruments is a quad-channel, e-trim™ high-precision CMOS operational amplifier in TSSOP-14 package, delivering 20MHz gain-bandwidth, 30V/µs slew rate, 15µV typical offset voltage (175µV max), 0.6–3µV/°C drift over –40°C to +125°C, and rail-to-rail output swing within 150mV of supply rails. It targets high-fidelity signal conditioning in optical transimpedance amplifiers and precision ADC drivers.

For engineers reviewing the OPA4727AIPWR datasheet, OPA4727AIPWR pinout, OPA4727AIPWR application, or OPA4727AIPWR equivalent, key selection criteria include guaranteed 175µV max input offset at full temperature range, 4.3mA per amplifier quiescent current, 6nV/√Hz noise at 100kHz, 1kΩ load output swing ≤250mV from rails, and compatibility with ±2V to ±6V or +4V to +12V supplies.

Technical Context

The OPA4727AIPWR uses e-trim™ technology-digital trimming performed post-packaging-to stabilize offset voltage and temperature drift against mechanical stress-induced parameter shifts. Its CMOS input stage achieves 500pA max bias current and 10¹¹ Ω||5pF differential input impedance, enabling low-leakage photodiode interfacing.

It features a Class AB rail-to-rail output stage capable of sourcing/sinking 40mA while maintaining AOL >106dB into 1kΩ loads. The device is unity-gain stable and specified for operation across –40°C to +125°C with no phase inversion when inputs exceed supply rails (with current limiting).

Key Specifications

Pinout & Package

TSSOP-14 package with exposed thermal pad connected to V–; 14-pin layout optimized for low parasitic coupling between channels and minimal board area.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA4188AIPWR and ADA4077-4ARUZ, the OPA4727AIPWR uniquely balances 20MHz bandwidth, 175µV max offset, and 30V/µs slew rate in a quad TSSOP-14 package-making it optimal for multi-channel, wideband precision signal chains where both speed and dc accuracy are critical.

Availability

OPA4727AIPWR is available at Aetrix Electronics and suitable for optical transimpedance amplifiers, high-speed ADC drivers, and multi-channel active filter banks requiring stable component supply across industrial, test & measurement, and communications equipment lifecycles.

Supply support for OPA4727AIPWR 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 expertise in precision op amps and signal chain solutions.

The OPAx727 family-including OPA4727AIPWR-is designed for high-accuracy, wideband signal conditioning in optical networking, test equipment, and industrial process control where low offset, low drift, and fast settling are mandatory.

FAQ

What is the maximum input offset voltage specification for OPA4727AIPWR over temperature?

The OPA4727AIPWR has a maximum input offset voltage of 175µV over the full operating temperature range of –40°C to +125°C, as confirmed in the Electrical Characteristics table of the SBOS314H datasheet. This value applies specifically to the TSSOP-14 packaged OPA4727 variant and is measured under standard conditions (VS = ±5V, VCM = 0V). The 15µV typical value is measured at +25°C only.

Does OPA4727AIPWR support single-supply operation, and what is its input common-mode range?

Yes, OPA4727AIPWR supports single-supply operation from +4V to +12V. Its input common-mode voltage range extends from V– to (V+) – 2.5V, enabling true ground-sensing capability in single-supply configurations. For example, with +5V supply, inputs can swing from 0V (GND) to +2.5V-critical for interfacing with sensors referenced to ground.

What is the thermal resistance (θJA) of the OPA4727AIPWR in its TSSOP-14 package?

The OPA4727AIPWR in TSSOP-14 package has a junction-to-ambient thermal resistance (θJA) of 100°C/W, as specified in the Electrical Characteristics table. This value assumes standard JEDEC 2-layer board conditions; actual thermal performance improves significantly when the exposed thermal pad is soldered to a large copper pour connected to V–.

Can OPA4727AIPWR drive capacitive loads, and what is the recommended approach for stability?

OPA4727AIPWR can drive moderate capacitive loads, but stability depends on gain and load capacitance. At unity gain, small-signal overshoot increases above 20pF; inserting a 10Ω–20Ω series resistor inside the feedback loop (between output and feedback network) improves phase margin without degrading DC accuracy. The datasheet confirms stable operation with CL = 20pF at G = +1.

Is OPA4727AIPWR pin-compatible with other members of the OPAx727 family, such as OPA2727 or OPA727?

No, OPA4727AIPWR is not pin-compatible with OPA727 (MSOP-8/SO-8) or OPA2727 (SO-8/DFN-8) due to its quad-channel TSSOP-14 footprint and unique 14-pin pinout. While electrical specifications are closely matched across the family, physical layout and channel count differ fundamentally-requiring PCB redesign for substitution.