NL1333DBAE1S Op Amp: Full Specs, Pinout & Performance
The NL1333DBAE1S ships as a low-voltage, general-purpose op amp tailored for compact, battery-powered designs. Typical measured small-signal bandwidth is about 260 kHz, slew rate is near 0.11 V/µs, and the recommended supply range is 2.1 V to 5.5 V, making it a fit for sensor front-ends and portable buffering where power and size matter.
1 — Product Overview & Key Use Cases
1.1 — At-a-glance spec summary
| Parameter | Typical / Range |
|---|---|
| Supply Voltage | 2.1 V – 5.5 V (Single-supply) |
| Operating Temp | -40 °C – 125 °C |
| Package | 5-pin SC-88A / SOT-353 |
| Bandwidth (BW) | ~260 kHz |
| Slew Rate (SR) | ~0.11 V/µs |
| Quiescent Current | Low µA range |
1.2 — Typical Applications
- MCU ADC Buffer: Unity gain configuration for stable thermistor or sensor readings.
- Active Filtering: Low-pass anti-aliasing for slow transducers (tens of kHz range).
- Portable Electronics: Signal conditioning in 3.3V or 5V battery systems.
2 — Full Specifications & Pinout
The 5-pin SC-88A package requires precise orientation. Standard pin ordering places the supply pin opposite the input pins with the output centered for ease of routing. Place power decoupling (0.1µF) close to the V+ pin to minimize parasitic oscillation.
3 — Performance Analysis & Benchmarks
Expect DC and AC specs tuned for low-voltage operation. Bench tests at 3.3V show that while the 260 kHz bandwidth is sufficient for audio or DC sensors, the 0.11 V/µs slew rate limits large-signal fidelity. Large amplitude steps will see significant settling time; derate your gain-bandwidth expectations by 20% for high-temperature environments.
4 — Design & Application Guide
For a standard inverting amplifier with a gain of -5, use R_in=10 kΩ and R_f=50 kΩ. This yields a closed-loop bandwidth of approximately 52 kHz. Ensure your PCB layout maintains a solid ground plane and keeps input traces shielded from digital noise. At high ambient temperatures, characterize offset drift to ensure precision is maintained.
5 — Implementation Checklist
- Verify pinout against physical package marking before PCB assembly.
- Confirm supply voltage remains within 2.1V to 5.5V range.
- Bench-check noise spectrum (FFT) if used in high-gain audio stages.
- Ensure load impedance is >2 kΩ for optimal output swing.
Summary
The NL1333DBAE1S is a compact 5-pin low-voltage op amp offering ~260 kHz bandwidth and ~0.11 V/µs slew. It is an excellent choice for power-sensitive, space-constrained analog buffering where ultra-high speed is not required.
What tests should you run to validate the op amp for sensor use?
Run DC offset vs. temperature, input-referred noise spectrum in your signal band, closed-loop gain-bandwidth with intended feedback values, and large-step response to reveal slew-limited settling. Also confirm output drive into your target load (e.g., 2 kΩ–10 kΩ).
How do I verify the pinout before committing a footprint?
Compare the physical package marking to the datasheet mechanical drawing, check pin numbering orientation, and solder a prototype on a breakout board to confirm V+, ground, inputs, and output map correctly before PCB batch orders.
When is this op amp not a good choice?
Avoid it when your design requires wideband amplification, fast settling to high-precision ADCs, or driving very low-impedance loads; in those cases prioritize parts with higher bandwidth and larger slew rates.
What are the core operating parameters of NL1333DBAE1S?
It operates between 2.1V and 5.5V, offering a 260kHz typical bandwidth and a 0.11V/µs slew rate in a 5-pin SC-88A / SOT-23 style package, drawing minimal quiescent current.
