Texas Instruments OPA2363AIDGST

Overview

OPA2363AIDGST from Texas Instruments is a dual, rail-to-rail input/output CMOS operational amplifier optimized for 1.8-V to 5.5-V single-supply operation. It delivers 7-MHz gain-bandwidth, 5-V/µs slew rate, and 90-dB typical CMRR in a 10-pin VSSOP package, enabling precision signal conditioning in battery-powered microphone preamplifiers and sensor interfaces.

For engineers reviewing the OPA2363AIDGST datasheet, OPA2363AIDGST pinout, OPA2363AIDGST application, or OPA2363AIDGST equivalent, key selection criteria include its shutdown-capable dual-channel architecture, ±1-pA input bias current at 25°C, 500-µV maximum offset voltage (AI grade), and guaranteed operation from –40°C to +125°C in industrial environments.

Technical Context

The OPA2363AIDGST implements a complementary CMOS input stage that eliminates crossover distortion, ensuring high common-mode rejection across the full rail-to-rail input range (V– – 0.1 V to V+ + 0.1 V) without phase reversal. Its unity-gain stable architecture supports direct driving of SAR ADCs with minimal THD+N degradation.

Each channel integrates independent enable logic (Enable A on Pin 5, Enable B on Pin 6), allowing selective shutdown to <1 µA per channel while maintaining fast turnon (20 µs) and turnoff (1 µs) timing. The device draws only 750 µA per channel max at 5.5 V, supporting low-power portable instrumentation.

Key Specifications

Pinout & Package

OPA2363AIDGST is housed in a 10-pin Very Thin Shrink Small-Outline Package (VSSOP, DGS), measuring 3.0 mm × 3.0 mm × 0.8 mm, with exposed thermal pad for enhanced power dissipation in space-constrained PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual operational amplifier applications.

Compared with OPA2363AIDGST, OPA2364AIDR trades shutdown control and VSSOP compactness for lower cost and simpler layout, while MCP6V82-E/MS delivers zero-drift stability at the expense of higher supply current and no power-gating flexibility.

Availability

OPA2363AIDGST is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor nodes, and voice-interface consumer electronics requiring stable component supply across extended product lifecycles.

Supply support for OPA2363AIDGST 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 low-power signal chain solutions.

The OPA2363AIDGST belongs to TI's OPAx363 family of rail-to-rail CMOS op-amps, engineered specifically for high-fidelity, low-voltage signal conditioning in battery-operated and space-constrained industrial and medical systems.

FAQ

What is the maximum supply voltage for OPA2363AIDGST?

The OPA2363AIDGST supports a maximum supply voltage of 5.5 V across the V+ to V– terminals. Operation beyond this limit risks permanent damage, as specified in the Absolute Maximum Ratings table. For reliable long-term performance in 5-V systems, design margins should maintain V+ ≤ 5.3 V under worst-case ripple conditions. The OPA2363AIDGST remains fully functional down to 1.8 V, making it ideal for single-cell Li-ion and two-cell alkaline applications.

Does OPA2363AIDGST support rail-to-rail output swing?

Yes, the OPA2363AIDGST provides true rail-to-rail output swing, delivering voltage levels within 20 mV of both supply rails under 10-kΩ load conditions across the full –40°C to +125°C temperature range. This capability eliminates the need for external level-shifting components when interfacing with 3.3-V ADCs or microcontroller GPIOs. The OPA2363AIDGST achieves this using an internal charge-pump-assisted output stage, as confirmed in the Electrical Characteristics table and Functional Block Diagram.

How does the shutdown feature work on OPA2363AIDGST?

The OPA2363AIDGST features two independent shutdown inputs: Enable A (Pin 5) and Enable B (Pin 6). Driving either pin low disables its respective amplifier channel, reducing quiescent current to less than 1 µA per channel. Both channels remain active when pins are pulled high to V+ (≥0.75 × V+). Turnon time is 20 µs; turnoff time is 1 µs. This architecture allows asymmetric power management - for example, keeping Channel A active for continuous monitoring while shutting down Channel B during idle periods in dual-sensor systems.

What is the input bias current specification for OPA2363AIDGST?

The OPA2363AIDGST exhibits an input bias current of ±1 pA typical at 25°C, with a maximum of ±10 pA over the full –40°C to +125°C operating range. This ultra-low value is enabled by its CMOS input stage and makes the OPA2363AIDGST suitable for high-impedance sensor interfaces such as photodiodes, piezoelectric elements, and pH electrodes. The datasheet confirms this in Section 7.9 (Electrical Characteristics) under "Input Bias Current (IB)" with test conditions explicitly referencing TA = 25°C and TA = –40°C to +125°C.

Is OPA2363AIDGST unity-gain stable?

Yes, the OPA2363AIDGST is unity-gain stable, as stated in the "Detailed Description" section (Section 8.1) and verified by the Gain vs Frequency and Phase vs Frequency plots in Figure 1. Its internal compensation ensures stable operation with closed-loop gains ≥1, including voltage followers and noninverting buffers. This eliminates the need for external compensation networks in standard gain configurations, simplifying design for applications like microphone preamplifiers and sensor signal buffering where minimal external components are required.