Texas Instruments OPA2376AID

Overview

OPA2376AID from Texas Instruments is a dual-channel, rail-to-rail input/output precision operational amplifier featuring e-trim™ technology, 7.5 nV/√Hz input voltage noise at 1 kHz, 5 μV typical offset voltage, 5.5 MHz gain-bandwidth product, and 760 μA typical quiescent current per amplifier - optimized for high-resolution ADC buffering and low-power sensor signal conditioning in battery-operated instrumentation.

For engineers reviewing the OPA2376AID datasheet, OPA2376AID pinout, OPA2376AID application, or OPA2376AID equivalent, key selection criteria include its low-noise performance in sub-10 μV offset systems, stable unity-gain operation with up to 250 pF capacitive load drive, and guaranteed operation from –40°C to +125°C in SOIC-8 packaging.

Technical Context

The OPA2376AID implements a CMOS-based precision op amp architecture with e-trim™ trimming for dc accuracy, delivering 0.8 μVPP integrated 0.1 Hz to 10 Hz noise and 90 dB minimum CMRR over (V–) to (V+) – 1.3 V common-mode range. Its internal ESD protection includes diode-clamped inputs rated for ±4 kV HBM.

It operates from a single 2.2 V to 5.5 V supply, supports rail-to-rail output swing within 20 mV of rails (at 10 kΩ load), and maintains 5.5 MHz GBW with 2 V/μs slew rate - enabling accurate settling (<2 μs to 0.01%) in high-speed data acquisition front ends.

Key Specifications

Pinout & Package

OPA2376AID is housed in an 8-pin SOIC package (4.90 mm × 3.91 mm body size) with standard surface-mount footprint and thermal performance (RθJA = 111.1°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA2376AID, OPA2333AIDR offers superior drift performance at 22× higher quiescent current, while MCP6V82-E/SN trades 10× lower bandwidth for tighter initial offset - making OPA2376AID the balanced choice for noise-sensitive, medium-speed, battery-powered precision signal chains.

Availability

OPA2376AID is available at Aetrix Electronics and suitable for ADC buffering, medical instrumentation, handheld test equipment, and active filtering requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for OPA2376AID 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 company specializing in analog and embedded processing technologies, with leadership in precision amplifiers, data converters, and power management ICs.

The OPA2376AID belongs to TI's e-trim™ precision op amp product line, engineered specifically for high-resolution data acquisition systems where low noise, low drift, and rail-to-rail operation are essential in space- and power-constrained designs.

FAQ

What is the maximum capacitive load the OPA2376AID can drive stably in unity-gain configuration?

The OPA2376AID is specified to drive up to 250 pF of pure capacitive load stably in unity-gain buffer configuration. This capability eliminates the need for external isolation resistors in many ADC input circuits. For loads exceeding 250 pF, a small series resistor (10–20 Ω) between the OPA2376AID output and the capacitive load restores stability while preserving dc accuracy - verified in TI's SBOS406G datasheet Figure 16 and Section 7.3.3.

Does the OPA2376AID support true rail-to-rail input common-mode range?

Yes, the OPA2376AID supports rail-to-rail input with common-mode voltage extending 100 mV beyond both supply rails - from (V–) – 0.1 V to (V+) + 0.1 V. However, dc specifications including offset voltage and CMRR are guaranteed only over the narrower range of (V–) to (V+) – 1.3 V, as documented in the Electrical Characteristics table of the OPA2376AID datasheet.

What is the typical quiescent current per amplifier in the OPA2376AID at 5.5 V supply?

The typical quiescent current per amplifier in the OPA2376AID is 760 μA at 5.5 V supply and 25°C, with a maximum of 950 μA over the full –40°C to +125°C operating range. This low IQ enables multi-year battery life in portable instrumentation - confirmed in Section 6.7 Electrical Characteristics of the OPA2376AID datasheet (SBOS406G).

Can the OPA2376AID operate from a single 2.7 V supply in battery-powered applications?

Yes, the OPA2376AID is fully specified to operate from a single 2.2 V to 5.5 V supply, making it compatible with nominal 2.7 V lithium-thionyl chloride or two-alkaline-cell supplies. At 2.7 V, it maintains 5.5 MHz GBW, 2 V/μs slew rate, and rail-to-rail I/O - enabling high-fidelity signal conditioning without voltage regulation, as validated in Section 6.3 Recommended Operating Conditions.

What package type is used for the OPA2376AID part number?

The OPA2376AID is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) with body dimensions of 4.90 mm × 3.91 mm - designated as "D" package in TI's ordering nomenclature. This industry-standard package supports automated assembly and provides thermal resistance (RθJA) of 111.1°C/W, as detailed in Section 6.5 Thermal Information of the OPA2376AID datasheet.