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OPA350UA-2K5

OPA350UA/2K5 Op Amp, 38 MHz GBW, Rail-to-Rail Output, 8-SOIC

MPNOPA350UA/2K5
End of Life

Texas Instruments MicroAmplifier™ series, OPA350UA/2K5, General Purpose Amplifier, 1 Circuit, Rail-to-Rail, 38 MHz, 22V/µs, 2.5V to 5.5V, 5.2mA, 8-SOIC, -40°C to 85°C.

$3.13Ref. price · indicative, final on quote
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
SeriesMicroAmplifier™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

OPA350UA/2K5 specifications
ParameterValue
SeriesMicroAmplifier™
Output typeRail-to-Rail
MountingSurface Mount
Amplifier typeGeneral Purpose
Voltage - input offset150 µV
Voltage - supply span5.5 V
Current - supply5.2mA
Current - input bias0.5 pA
Current - output (Channel)40 mA
Operating temperature-40°C ~ 85°C
Gain bandwidth product38 MHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate22V/µs
Case8-SOIC (0.154\", 3.90mm Width)
Number of circuits1

Product details

That combination means it can handle fast pulse trains or moderate-frequency sine waves (think 1–5 MHz closed-loop gain of 10) without significant slew-induced distortion.

Input bias and offset — fit for high-impedance sources

Input bias current is just 0.5 pA, and input offset voltage is 150 µV. That makes the OPA350UA/2K5 a clean choice for buffering photodiodes, pH probes, or other high-impedance sensors where picoamp leakage into the source would corrupt the measurement. The 40 mA output drive per channel is enough to swing a modest load or drive a cable capacitance without an extra buffer stage.

Temperature range and operating conditions

Supply current is 5.2 mA typical — not the lowest for battery gear, but reasonable for a 38 MHz amplifier in a mixed-signal system where speed matters more than microwatts.

Surface-mount only; the /2K5 suffix denotes Tape & Reel (TR) packaging, which is the typical reel for automated pick-and-place. Cut Tape (CT) is also listed for prototype or low-volume builds.

For production BOMs that need a dual-source hedge, the TLV9351IDCKR (3.5 MHz, 20 V/µs, single-channel, 8-pin SOT-23) is a lower-speed functional alternative in a smaller package — but verify the pinout and supply range against your layout.

Frequently asked questions

Can OPA350UA/2K5 replace OPA350?

The OPA350UA/2K5 is the Tape & Reel variant of the base OPA350UA. The electrical specifications (38 MHz GBW, 22 V/µs slew rate, 0.5 pA input bias, rail-to-rail output) are identical. The only difference is the packaging format — /2K5 is Tape & Reel for automated assembly, while the base OPA350UA may ship in tube or other media. Functionally, they are interchangeable.

What is the difference between OPA350UA and OPA350UA/2K5?

The OPA350UA/2K5 suffix indicates Tape & Reel (TR) packaging — 2,500 units per reel. The base OPA350UA without the suffix is typically supplied in tubes. The die, electrical specs, and package (8-SOIC) are identical.

What are the equivalents for OPA350UA/2K5?

A functional alternative is the TLV9351IDCKR, a single-channel general-purpose op amp with 3.5 MHz GBW and 20 V/µs slew rate in an 8-pin SOT-23 package. Verify the pinout and supply voltage (4.5 V typical) against your design before substituting.