Texas Instruments OPA2354AIDDA

Overview

OPA2354AIDDA from Texas Instruments is a dual-channel, rail-to-rail input/output, 250-MHz unity-gain stable CMOS operational amplifier in an 8-pin HSOP PowerPAD package. It delivers 150 V/µs slew rate, 6.5 nV/√Hz input voltage noise, ±100 mA output current per channel, and operates from 2.5 V to 5.5 V supply. It is optimized for high-fidelity video signal buffering and photodiode transimpedance amplification.

For engineers reviewing the OPA2354AIDDA datasheet, OPA2354AIDDA pinout, OPA2354AIDDA application, or OPA2354AIDDA equivalent, key selection criteria include its 100-MHz gain-bandwidth product, differential gain/phase performance (0.02%/0.09°), channel-to-channel crosstalk of –100 dB at 5 MHz, thermal shutdown protection, and operation across –40°C to +125°C.

Technical Context

The OPA2354AIDDA uses complementary N- and P-channel input stages to achieve rail-to-rail input common-mode range extending 100 mV beyond both supply rails. Its class AB output stage enables rail-to-rail output swing within 100 mV of rails under 1-kΩ load and supports continuous ±100 mA output current per channel.

It features on-chip thermal shutdown activation at 160°C with automatic recovery at 140°C, and maintains stability in unity-gain configuration without external compensation. Channel independence ensures minimal interaction - crosstalk is –100 dB at 5 MHz - critical for dual-path signal conditioning.

Key Specifications

Pinout & Package

The OPA2354AIDDA is housed in an 8-pin HSOP (Heat Sink Over Pad) package measuring 4.89 mm × 3.90 mm, with exposed thermal pad (PowerPAD™) that must be connected to V− or left floating per TI design guidance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA2354AIDGKR and OPA2691ID, the OPA2354AIDDA uniquely combines rail-to-rail I/O, 250-MHz unity-gain bandwidth, ±100 mA drive, and industry-leading thermal resistance (40.6°C/W) in a surface-mount HSOP package - making it optimal for space-constrained, thermally demanding video and optical systems.

Availability

OPA2354AIDDA is available at Aetrix Electronics and suitable for video processing, ultrasound signal conditioning, and photodiode transimpedance amplifier designs requiring stable component supply across extended temperature ranges and high-volume production.

Supply support for OPA2354AIDDA 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 OPAx354 family was designed specifically for high-fidelity video, optical networking, and high-speed instrumentation applications demanding wide bandwidth, low distortion, and robust rail-to-rail operation.

FAQ

What is the maximum continuous output current per channel for OPA2354AIDDA?

The OPA2354AIDDA supports ±100 mA continuous output current per channel when operating from a 5-V supply, as specified in the Electrical Characteristics table (Section 7.7). This rating applies under recommended operating conditions (TA = 25°C, RL = 1 kΩ), and derating is required above 85°C ambient. Exceeding this limit risks thermal shutdown activation at 160°C junction temperature.

Does OPA2354AIDDA require external compensation for unity-gain stability?

No, the OPA2354AIDDA is internally compensated for unity-gain stability. It achieves 250-MHz unity-gain bandwidth without external components and remains stable driving capacitive loads up to 100 pF when used with appropriate series resistance (RS) per Figure 14 in the datasheet. No external compensation network is needed for G = +1 configurations.

Can OPA2354AIDDA operate from a 3.3-V single supply?

Yes, the OPA2354AIDDA is fully specified for operation from 2.5 V to 5.5 V single supply. At 3.3 V, it maintains rail-to-rail input (–0.1 V to 3.4 V common-mode) and output swing (within 100 mV of rails), 110 V/µs slew rate, and 100-MHz gain-bandwidth product - enabling direct integration into 3.3-V FPGA/ASIC interface and portable medical systems.

What is the purpose of the PowerPAD in the OPA2354AIDDA HSOP package?

The PowerPAD in the OPA2354AIDDA is an exposed thermal pad on the underside of the HSOP package, designed to conduct heat from the die to the PCB copper plane. Per TI's guidance, it must be connected to V− (negative supply) or left electrically floating - but must be soldered to a thermal land for effective heat dissipation. This reduces R_θJA to 40.6°C/W, enabling reliable ±100 mA operation without external heatsinks.

How does channel-to-channel crosstalk affect dual-channel use of OPA2354AIDDA?

The OPA2354AIDDA exhibits –100 dB channel-to-channel crosstalk at 5 MHz, measured input-referred. This means a 1-V, 5-MHz signal on channel A induces less than 10 µV on channel B's output - effectively isolating dual signal paths in applications like stereo audio preamps, differential sensor pairs, or independent RGB channel drivers without measurable interference.