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Texas Instruments OPA4344EA/250 — Analog & Data Acquisition

OPA4344EA/250 Quad CMOS Op-Amp, 1 MHz, Rail-to-Rail Output

MPNOPA4344EA/250
End of Life

Texas Instruments OPA4344EA/250, MicroAmplifier™ series, quad CMOS op-amp, 1 MHz gain bandwidth, 0.8 V/µs slew rate, rail-to-rail output, 150 µA per channel supply, 14-TSSOP package, -40°C to 85°C.

$4.56Ref. price · indicative, final on quote
Texas Instruments OPA4344EA/250 datasheet (PDF)
Packaging14-TSSOP (0.173", 4.40mm Width)
RoHSROHS3 Compliant
SeriesMicroAmplifier™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

OPA4344EA/250 specifications
ParameterValue
SeriesMicroAmplifier™
Output typeRail-to-Rail
MountingSurface Mount
Amplifier typeCMOS
Voltage - input offset200 µV
Voltage - supply span5.5 V
Current - supply150µA (x4 Channels)
Current - input bias0.2 pA
Current - output (Channel)15 mA
Operating temperature-40°C ~ 85°C
Gain bandwidth product1 MHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate0.8V/µs
Case14-TSSOP (0.173\", 4.40mm Width)
Number of circuits4

Product details

Why this quad CMOS op-amp earns a spot on your BOM

With a 1 MHz gain-bandwidth product and 0.8 V/µs slew rate, it handles audio-band signal conditioning, sensor buffering, and active filtering without wasting power — each channel draws just 150 µA of supply current.

The 14-TSSOP package ships in Tape & Reel (2500/reel) or Cut Tape options, suitable for both volume assembly and prototype builds.

Hand-soldering the 14-TSSOP footprint

Use a stencil for solder paste if you're placing more than a handful; the 0.173-inch body length is forgiving for alignment under a magnifier.

Frequently asked questions

What are the alternatives or equivalents for OPA4344EA/250?

A close functional peer is the OPA4374AIPWT, also a quad CMOS rail-to-rail output op-amp from TI, but with a wider 6.5 MHz gain bandwidth and 5 V/µs slew rate — a step up in speed at slightly higher supply current (600 µA per channel). For a lower-power alternative, the OPA4344 itself is hard to beat at 150 µA per channel. No pin-compatible second source is listed, so verify the footprint if substituting.

Can OPA4344EA/250 be used as a replacement for LM324?

In many general-purpose signal conditioning roles, yes — the OPA4344EA/250 offers lower supply current (150 µA vs ~500 µA per channel for LM324), rail-to-rail output, and much lower input bias current (0.2 pA vs ~100 nA). However, the LM324 operates from a wider supply range (up to 32 V) and has a higher output current capability. Check your supply voltage and output drive requirements before substituting.