Texas Instruments OPA2727AIDRBT

Overview

OPA2727AIDRBT from Texas Instruments is a dual-channel, e-trim™ high-precision CMOS operational amplifier in an 8-pin DFN (SON) package. It delivers 20MHz gain-bandwidth, 30V/µs slew rate, 15µV typical offset voltage (150µV max), 0.3µV/°C typical drift, and 4.3mA per channel quiescent current - enabling high-fidelity signal conditioning in battery-powered instrumentation and optical transimpedance amplifiers.

For engineers reviewing the OPA2727AIDRBT datasheet, OPA2727AIDRBT pinout, OPA2727AIDRBT application, or OPA2727AIDRBT equivalent, key selection considerations include its rail-to-rail output swing (150mV from rails), ultra-low input bias current (±500pA max), low 6nV/√Hz noise at 100kHz, and operation across ±2V to ±6V or +4V to +12V supplies with full specification from –40°C to +85°C.

Technical Context

The OPA2727AIDRBT uses Texas Instruments' e-trim™ technology - digital trimming performed post-packaging to eliminate stress-induced parameter shifts - achieving stable 150µV max offset and 1.5µV/°C max drift over temperature. Its CMOS input stage enables <500pA bias current and 10¹¹Ω input impedance, supporting high-impedance sensor interfaces without significant error.

It features a Class AB rail-to-rail output stage capable of driving 1kΩ loads within 250mV of supply rails while maintaining >106dB open-loop gain, and is unity-gain stable with robust capacitive load drive (up to 20pF at G = +1). Input common-mode range extends from V– to (V+) – 2.5V, supporting true single-supply operation.

Key Specifications

Pinout & Package

OPA2727AIDRBT is housed in an 8-pin SON (DFN-8) package with exposed thermal die pad on underside, requiring connection to V– for optimal thermal performance and reliability. The pinout is identical to industry-standard SO-8 and MSOP-8 op amps for layout compatibility.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA2182AIDR and ADA4522-2ARMZ, the OPA2727AIDRBT uniquely balances 20MHz bandwidth, 30V/µs slew rate, and 150µV/1.5µV/°C precision - making it the only dual-channel option among these three suitable for simultaneous high-resolution data acquisition and real-time analog signal processing.

Availability

OPA2727AIDRBT is available at Aetrix Electronics and suitable for optical networking transceivers, high-speed data acquisition systems, and industrial process control equipment requiring stable component supply with guaranteed traceability and lifecycle management.

Supply support for OPA2727AIDRBT 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 over 90 years of innovation in precision amplifiers, data converters, and power management ICs.

The OPA2727AIDRBT belongs to TI's e-trim™ precision op amp product line, engineered for applications demanding low offset, low drift, and high-speed ac performance - including optical sensing, test equipment, and high-fidelity signal chains.

FAQ

What is the maximum operating temperature range for the OPA2727AIDRBT?

The OPA2727AIDRBT is specified over –40°C to +85°C ambient temperature, with absolute maximum junction temperature rated at +150°C. Its electrical characteristics - including offset voltage, drift, and gain - are fully guaranteed across this industrial temperature range, and thermal resistance (θJA) is 46°C/W for the DFN-8 package when the exposed die pad is properly soldered to a thermal plane.

Does the OPA2727AIDRBT support single-supply operation?

Yes, the OPA2727AIDRBT supports true single-supply operation from +4V to +12V. Its input common-mode range extends to V– (ground), and its rail-to-rail output swings within 150mV of both supply rails - enabling direct interface with microcontroller ADCs and digital logic without level-shifting circuitry. The device remains fully specified under these conditions.

Is the OPA2727AIDRBT pin-compatible with other dual op amps in DFN-8 packages?

The OPA2727AIDRBT uses the standard DFN-8 (SON) pinout defined by Texas Instruments for dual op amps - matching pin assignments for IN+, IN–, OUT, and supply terminals across TI's OPA2x7x family. This enables drop-in replacement with OPA2376AIDRBT or OPA2333AIDRBT in existing layouts, provided thermal and decoupling design rules are observed.

What is the purpose of the exposed thermal pad on the OPA2727AIDRBT package?

The exposed thermal die pad on the underside of the OPA2727AIDRBT DFN-8 package must be soldered to a PCB copper pour connected to V–. This connection reduces θJA from ~150°C/W (unconnected) to 46°C/W, improves power dissipation capability, enhances board-level reliability during thermal cycling, and provides mechanical anchoring - all critical for long-term operation in industrial environments.

Can the OPA2727AIDRBT drive capacitive loads without external compensation?

Yes, the OPA2727AIDRBT is unity-gain stable and can directly drive up to 20pF capacitive loads at G = +1 with minimal overshoot. For loads exceeding 20pF - such as ADC input capacitance plus PCB trace capacitance - a 10Ω to 20Ω series resistor placed inside the feedback loop (between output and feedback network) improves phase margin while preserving dc accuracy and settling performance of the OPA2727AIDRBT.