5-Pack FET Input Op-Amp ICs – OPA4132 4134 4137 4234 & More
5-Pack FET Input Op-Amp ICs – OPA4132 4134 4137 4234 & More
5-Pack FET Input Operational Amplifier ICs – Multiple Models Available
Upgrade your audio and precision electronics projects with this convenient 5-piece pack of FET-input operational amplifier ICs. Compatible with a wide range of OPA-series models — including OPA4132, OPA4134, OPA4137, OPA4234, OPA4340, OPA4343, OPA4344, OPA4345, OPA4130, and OPA4277 — these op-amps deliver exceptional low-noise, high-precision performance for demanding analog circuit designs.
Whether you're building audio preamplifiers, precision instrumentation circuits, active filters, or signal-conditioning stages, these FET-input op-amps offer the high input impedance, low offset voltage, and wide bandwidth your designs demand. Each pack includes 5 units of your selected model variant (U/UA or 2K5 package), giving you spares for prototyping or production runs.
Made in Mainland China.
Key Features
- Multi-Model Compatibility: Choose from OPA4132, OPA4134, OPA4137, OPA4234, OPA4340, OPA4343, OPA4344, OPA4345, OPA4130, OPA4277 and more
- FET Input Technology: High input impedance, ultra-low input bias current — ideal for precision analog and audio applications
- Package Options: Available in U/UA (SOIC/DIP) and 2K5 (tape & reel) packaging for flexible integration
- Precision Performance: Low offset voltage, low noise, and wide supply voltage range for stable, accurate signal processing
- Quad Op-Amp Design: Four amplifiers in a single package — reduces board space and component count
- Pack of 5: Ideal for prototyping, repairs, DIY electronics, and small production runs
Typical Applications
- High-fidelity audio preamplifiers and DAC output stages
- Precision instrumentation and measurement circuits
- Active filter design (low-pass, high-pass, bandpass)
- Signal conditioning and data acquisition front ends
- Sensor interface circuits
- Professional and DIY electronics repair
What's in the Box
- 5 × FET-Input Operational Amplifier ICs (model of your choice)
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Frequently Asked Questions
Q: What is a FET-input operational amplifier and why does it matter for my circuit?
A: A FET-input op-amp uses field-effect transistors at its input stage, resulting in extremely high input impedance and very low input bias current. This makes it ideal for applications where the signal source has a high output impedance, such as sensors, microphones, or precision measurement circuits — ensuring minimal signal loading and maximum accuracy.
Q: Which package types are available for these op-amp ICs?
A: These FET-input op-amps are available in U/UA packaging (standard SOIC or DIP through-hole/surface-mount) and 2K5 (tape-and-reel format for automated pick-and-place assembly), giving you flexibility for both hand-soldering prototypes and production PCB manufacturing.
Q: Are these OPA-series op-amps compatible with standard breadboard and PCB designs?
A: Yes. The U/UA package variants are compatible with standard DIP or SOIC footprints commonly used in breadboards and PCB layouts. Always verify the specific package footprint against your PCB design before ordering to ensure a perfect fit.
Q: How many ICs do I receive per order?
A: Each order includes 5 individual op-amp ICs of your selected model and package variant — perfect for prototyping, component stock replenishment, or small-batch electronics projects.