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OPA137UA-2K5

OPA137UA/2K5 General Purpose Op-Amp, 1 MHz GBW, 8-SOIC

MPNOPA137UA/2K5
End of Life

Texas Instruments MicroAmplifier™ series OPA137UA/2K5, single general-purpose op-amp, 1 MHz gain-bandwidth, 3.5 V/µs slew rate, 220 µA supply, 4.5 V to 36 V supply, -40°C to 85°C, 8-SOIC package.

$2.11Ref. 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

OPA137UA/2K5 specifications
ParameterValue
SeriesMicroAmplifier™
MountingSurface Mount
Amplifier typeGeneral Purpose
Voltage - input offset2.5 mV
Voltage - supply span4.5 V
Current - supply220µA
Current - input bias5 pA
Current - output (Channel)60 mA
Operating temperature-40°C ~ 85°C
Gain bandwidth product1 MHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate3.5V/µs
Case8-SOIC (0.154\", 3.90mm Width)
Number of circuits1

Product details

It delivers a 1 MHz gain-bandwidth product with a 3.5 V/µs slew rate, drawing just 220 µA of supply current.

The 4.5 V minimum supply means this part runs cleanly on a 5 V rail with margin, and the 36 V maximum allows ±18 V dual-supply operation. At 220 µA quiescent current, it fits into low-power signal chains where every microamp counts — think battery-backed sensor interfaces or loop-powered transmitters. The 60 mA output current per channel gives enough drive for moderate loads like ADC inputs or reference buffers, though it is not a power-stage driver.

Slew rate and bandwidth — what the numbers mean

The 1 MHz GBW sets the closed-loop bandwidth for a given gain: at a gain of 10, expect roughly 100 kHz of usable bandwidth. The 3.5 V/µs slew rate supports full-power signals up to about 55 kHz at 10 V output swing — fine for audio, slow ADC drivers, or control loops, but not for video or fast data acquisition. The 5 pA input bias current is a strong point for high-impedance sources like photodiodes or pH probes, where bias current error would otherwise dominate the offset.

The 2K5 suffix indicates a 2500-unit reel on Tape & Reel; the part is also available in Cut Tape for smaller quantities.

Frequently asked questions

Where can I buy OPA137UA/2K5 in stock?

Buyers need immediate sourcing; stock availability and lead time drive conversion.

What is the OPA137UA/2K5 datasheet?

Design engineers must verify specs (GBW, slew rate, supply current) and pinout before use.

What is the price of OPA137UA/2K5?

Cost is critical for BOM budgeting and comparing suppliers; influences purchase decision.

Is OPA137UA/2K5 obsolete or end-of-life?

Lifecycle status determines long-term availability; active status reassures buyers and maintains design confidence.

What is the equivalent or replacement for OPA137UA/2K5?

Engineers need drop-in alternatives for second-sourcing or if the part is out of stock.

What is the pinout of OPA137UA/2K5?

PCB layout and replacement verification require exact pin configuration; datasheet may not be easily accessible.