Texas Instruments OPA2336EA/250

Overview

OPA2336EA/250 from Texas Instruments is a dual, rail-to-rail output, microPower CMOS operational amplifier designed for single-supply battery-powered systems. It delivers 125 µV max input offset voltage, 20 µA per amplifier quiescent current, and rail-to-rail output swing within 3 mV of supply rails at 100 kΩ load - enabling precision signal conditioning in portable medical instruments and photodiode pre-amplifiers.

For engineers reviewing the OPA2336EA/250 datasheet, OPA2336EA/250 pinout, OPA2336EA/250 application, or OPA2336EA/250 equivalent, key selection criteria include its 2.3 V to 5.5 V operating range, 1 pA input bias current, 115 dB open-loop gain, and MSOP-8 package compatibility with space-constrained PCB layouts.

Technical Context

The OPA2336EA/250 employs a CMOS input stage with ultra-low input bias current (1 pA typical) and rail-to-rail output architecture using complementary PMOS/NMOS output transistors. Its common-mode input range extends to the negative rail (V– – 0.2 V), supporting true single-supply operation without level-shifting circuitry.

It features unity-gain stability, 100 kHz gain-bandwidth product, and 0.03 V/µs slew rate - optimized for low-frequency precision applications like sensor interfacing and integrators rather than high-speed signal paths. Channel separation exceeds 140 dB at DC, ensuring minimal crosstalk between amplifiers in dual configuration.

Key Specifications

Pinout & Package

OPA2336EA/250 is packaged in an 8-pin MSOP (VSSOP-8, DGK) surface-mount package measuring 3.0 mm × 3.0 mm × 1.0 mm, with exposed thermal pad for enhanced power dissipation in compact layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual microPower op-amp applications.

Compared with OPA2336EA/250, OPA2340UA/2K5 offers superior DC accuracy at the expense of 2.75× higher quiescent current, while MCP6022-I/SN trades ultra-low power for greater bandwidth and output drive - making OPA2336EA/250 optimal for strictly power-constrained, low-frequency precision roles.

Availability

OPA2336EA/250 is available at Aetrix Electronics and suitable for battery-powered instrumentation, photodiode pre-amplifiers, and precision integrators requiring stable component supply across extended production lifecycles.

Supply support for OPA2336EA/250 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 chains.

The OPA2336EA/250 belongs to TI's microAmplifier™ series, engineered specifically for ultra-low-power, high-accuracy analog signal conditioning in portable and energy-harvested systems.

FAQ

What is the maximum operating temperature range for the OPA2336EA/250?

The OPA2336EA/250 is specified over –40°C to +85°C for full parameter compliance, and operates reliably from –55°C to +125°C. Its thermal resistance (θ_JA) is 150°C/W in the MSOP-8 package, allowing safe operation at ambient temperatures up to +85°C with typical PCB copper area.

Can the OPA2336EA/250 drive capacitive loads, and what is the recommended approach?

Yes, the OPA2336EA/250 can drive capacitive loads up to ~300 pF in unity-gain configuration. For larger loads, insert a 50 Ω to 100 Ω resistor inside the feedback loop - this maintains DC accuracy while improving phase margin and reducing ringing, as validated in TI's SBOS068C application notes.

Is the OPA2336EA/250 pin-compatible with other packages of the OPA2336 family?

No - the OPA2336EA/250 uses the MSOP-8 (DGK) package with specific pinout (V–, In A–, In A+, Out A, Out B, In B+, In B–, V+). It is not pin-compatible with SO-8 or DIP-8 variants of OPA2336, which have different pin assignments and require PCB layout changes.

Does the OPA2336EA/250 require input protection when interfacing to signals exceeding the supply rails?

Yes - although the OPA2336EA/250 tolerates input voltages up to 300 mV beyond V+ or V–, currents must be limited to ≤10 mA. Use a series resistor (e.g., 5 kΩ for +5 V supply) to protect input ESD structures, as shown in Figure 2 of SBOS068C.

What is the typical input voltage noise density of the OPA2336EA/250 at 1 kHz?

The OPA2336EA/250 has a typical input voltage noise density of 40 nV/√Hz at 1 kHz. Combined with its 1 pA input bias current and 3 µV_p-p 0.1–10 Hz flicker noise, it delivers low-noise performance ideal for DC-coupled, high-impedance sensor interfaces where 1/f noise dominates.