LM8261M5/NOPB/BKN Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments LM8261M5/NOPB/BKN is a general-purpose single-channel operational amplifier in a compact 5-pin SOT-23 package optimized for low-voltage, space-constrained signal conditioning. It offers rail-to-rail output swing and wide bandwidth suitable for filter and buffer stages. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- LM8261M5/NOPB/BKN Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM8261M5/NOPB/BKN?
- Single-channel general-purpose op-amp in 5-pin SOT-23 minimizing PCB footprint for space-constrained analog circuits
- Rail-to-rail output swing maximizing dynamic range on low single-supply voltage systems
- Wide gain-bandwidth product enabling accurate amplification in audio-frequency and low-speed sensor signal conditioning
- Lead-free RoHS-compliant NOPB variant meeting global environmental regulations for production designs
- Single-supply operation from low supply voltages making it suitable for battery-powered portable instruments
What is LM8261M5/NOPB/BKN used for?
The LM8261M5/NOPB/BKN is well-suited for low-voltage sensor amplification, active filter stages, and voltage follower buffers in portable consumer electronics and handheld measurement instruments. Its 5-pin SOT-23 package conserves board space in wearable devices, IoT sensor nodes, and compact analog front-end circuits where PCB real estate is at a premium. The device also serves as a unity-gain buffer driving ADC inputs on microcontroller-based data acquisition boards operating from 3.3 V or 5 V single-supply rails.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the LM8261M5/NOPB/BKN datasheet?
LM8261M5/NOPB/BKN Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM8261M5/NOPB/BKN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage range does LM8261M5/NOPB/BKN support for single-supply battery-powered designs?
The LM8261M5/NOPB/BKN is a single-supply general-purpose op-amp designed to operate over a wide supply-voltage range typical of the LM8261 family, supporting single-supply voltages from approximately 2.7 V to 5.5 V. This range covers common battery configurations including 3 V lithium coin cells, 3.3 V regulated rails, and 5 V USB-powered supplies, making it a versatile choice for portable sensor conditioning designs.
How does the SOT-23-5 package of LM8261M5 benefit PCB layout in IoT sensor nodes?
The 5-pin SOT-23 package of the LM8261M5 occupies approximately 2.9 mm x 1.6 mm of PCB area with a 0.95 mm pin pitch, one of the smallest available footprints for a single-channel op-amp. In IoT sensor nodes where analog front-end components must share a board with an RF module, MCU, and power management IC, choosing SOT-23 over larger SOIC-8 packages can free 30 to 50 mm² of board area per op-amp stage.
When would LM8261M5/NOPB/BKN be selected over a dual op-amp such as LM8272 for a 2-channel filter design?
LM8261M5/NOPB/BKN is preferred when the two filter channels are physically separated on the board by 10 mm or more, allowing each channel to use a local SOT-23 decoupling and layout optimized individually. A dual op-amp like LM8272 saves one IC and 1-2 pins but places both amplifiers in a fixed 8-pin package; for channel crosstalk-sensitive designs such as differential audio preamplifiers operating at 20 Hz to 20 kHz, separate single op-amps provide better channel isolation.
Does LM8261M5/NOPB/BKN have rail-to-rail output, and how does this affect ADC interface design?
Yes, the LM8261M5/NOPB/BKN features a rail-to-rail output stage, which means the output can swing to within a few millivolts of both the positive and ground supply rails on a 3.3 V system, achieving an effective output range of approximately 0 V to 3.2 V. When driving a 12-bit SAR ADC with a 3.3 V full-scale reference, this rail-to-rail capability maximizes the usable code range and minimizes dead codes at the top and bottom of the ADC scale.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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