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Product details

Parameters

Number of channels (#) 1 Total supply voltage (Max) (+5V=5, +/-5V=10) 30 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.5 Rail-to-rail In, Out GBW (Typ) (MHz) 21 Slew rate (Typ) (V/us) 12 Vos (offset voltage @ 25 C) (Max) (mV) 5 Iq per channel (Typ) (mA) 0.97 Vn at 1 kHz (Typ) (nV/rtHz) 15 Rating Catalog Operating temperature range (C) -40 to 85 Offset drift (Typ) (uV/C) 2 Features High Cload Drive Input bias current (Max) (pA) 2000000 CMRR (Typ) (dB) 110 Output current (Typ) (mA) 53 Architecture Bipolar open-in-new Find other General-purpose op amps

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other General-purpose op amps

Features

  • (VS = 5 V, TA = 25°C, Typical Values
    Unless Specified)
  • GBWP 21 MHz
  • Wide Supply Voltage Range 2.5 V to 30 V
  • Slew Rate 12 V/µs
  • Supply Current 0.97 mA
  • Cap Load Limit Unlimited
  • Output Short Circuit Current 53 mA/ −75 mA
  • ±5% Settling Time 400 ns (500 pF, 100 mVPP Step)
  • Input Common Mode Voltage 0.3 V Beyond Rails
  • Input Voltage Noise 15nV/√Hz
  • Input Current Noise 1pA/√Hz
  • THD+N < 0.05%
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Description

The LM8261 is a Rail-to-Rail input and output Op Amp which can operate with a wide supply voltage range. This device has high output current drive, greater than Rail-to-Rail input common mode voltage range, unlimited capacitive load drive capability, and provides tested and guaranteed high speed and slew rate while requiring only 0.97 mA supply current. It is specifically designed to handle the requirements of flat panel TFT panel VCOM driver applications as well as being suitable for other low power, and medium speed applications which require ease of use and enhanced performance over existing devices.

Greater than Rail-to-Rail input common mode voltage range with 50 dB of Common Mode Rejection allows high side and low side sensing, among many applications, without concern over exceeding the range and with no compromise in accuracy. Exceptionally wide operating supply voltage range of 2.5 V to 30 V alleviates any concerns over functionality under extreme conditions and offers flexibility for use in multitude of applications. In addition, most device parameters are insensitive to power supply variations; this design enhancement is yet another step in simplifying its usage. The output stage has low distortion (0.05% THD+N) and can supply a respectable amount of current (15 mA) with minimal headroom from either rail (300 mV).

The LM8261 is offered in the space-saving SOT-23-5 package.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 11
Type Title Date
* Datasheet LM8261 Single RRIO High Output Current & Unlimited Cap Load Op Amp datasheet (Rev. J) Jan. 12, 2015
Technical articles What is an op amp? Jan. 21, 2020
Technical articles Designing tiny microphone circuits with the industry’s smallest op amp Apr. 12, 2018
Technical articles How to lay out a PCB for high-performance, low-side current-sensing designs Feb. 06, 2018
Technical articles Low-side current sensing for high-performance cost-sensitive applications Jan. 22, 2018
White papers The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Application notes Generation of a VCOM buffer input using PWM signal Dec. 21, 2015
Application notes Unlimited Cap Load Drive Op Amp Takes Guess Work Out of Design (Rev. C) May 07, 2013
User guides LMH6321 PSOP & TO-263 Sin Open Loop HS Buffer Eval Brds (Rev. C) May 03, 2013
Application notes AN-1515 A Comprehensive Study of the Howland Current Pump (Rev. A) Apr. 26, 2013
Application notes Unlimited Capacitive Load Drive Op Amp Takes Guesswork Out Of Design Mar. 06, 2003

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
29
Description

The TI Precision Amplifier Quickstart Kit simplifies op amp selection, design, and evaluation with samples of six op amps and an evaluation module for prototyping surface-mount ICs. The kit is the perfect starting point for your amplifier designs.

You may also be interested in TI Precision Labs, the (...)

Features

The kit includes:

  • Six samples: Three low-power, low-voltage amplifiers and three low-power, wide-supply amplifiers. See the table below for the complete list.
  • DIP Adapter Evaluation Module (DIP-ADAPTER-EVM) for prototyping surface-mount ICs. The EVM supports the following package types: D or U (...)
EVALUATION BOARDS Download
document-generic User guide
Description

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

Features
  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost
EVALUATION BOARDS Download
document-generic User guide
Description
The DIYAMP-EVM is a unique evaluation module (EVM) family that provides engineers and do it yourselfers (DIYers) with real-world amplifier circuits, enabling you to quickly evaluate design concepts and verify simulations. It is available in three industry-standard packages (SC70, SOT23, SOIC) and 12 (...)
Features
  • 3 packages to choose from: SC70-5, SOT23-5 and SOIC-8
  • 12 circuit configurations to choose from: Noninverting, Inverting, Active Filters, Difference Amp, Comparator and more!
  • Dual and single supply configurations
  • PCB designed for High performance: Optimized for each function
  • Multiple interface options (...)
EVALUATION BOARDS Download
document-generic User guide
10
Description

Texas Instruments offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Op Amps that are offered in the 5-/6-pin SOT-23 package. Resistors, capacitors, or any other surface-mount components can be easily mounted on this board in the desired circuit (...)

Features
  • Accommodates various high-speed Op Amp
  • Allows quick and easy evaluation
  • Serves as reference design to aid in high-speed PCB layout
  • Utilizes surface-mount components
EVALUATION BOARDS Download
document-generic User guide
Description

The Universal OPAMPEVM is a series of general purpose blank circuit boards that simplify prototyping circuits for a variety of IC package types. The evaluation module board design allows many different circuits to be constructed easily and quickly. Five models are offered with each targeted for (...)

Design tools & simulation

SIMULATION MODELS Download
SNOM213.ZIP (2 KB) - PSpice Model
SIMULATION MODELS Download
SNOM668.ZIP (8 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SNOM669.ZIP (1 KB) - TINA-TI Spice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide
CALCULATION TOOLS Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

Reference designs

REFERENCE DESIGNS Download
2460-W bidirectional boost converter reference design for automotive applications
PMP22396 — This reference design is a 2460-W bidirectional boost converter for automotive applications. The circuit is powered from the nominal 12-V battery to provide an output voltage of 48 V at 51.25 A. The design uses two dual-phase synchronous bidirectional controllers operating at a switching frequency (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
48-V / 25-A negative-to-positive synchronous buck-boost reference design for power amplifiers
PMP21943 — This reference design is a negative-to-positive synchronous buck-boost converter for power amplifier applications. The circuit is powered from the nominal -48-V system source to provide an output voltage of +48 V at 25 A. The design uses two dual synchronous boost controllers for 4-phase operation (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
12-V / 100-A negative-to-positive synchronous buck-boost reference design for power amplifiers
PMP21867 — This reference design is a negative-to-positive synchronous buck-boost converter for power amplifier applications. The circuit is powered from the nominal -48-V system source to provide an output voltage of +12 V at 100 A. The design uses two dual synchronous boost controllers for 4-phase operation (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
54-Vdc input, 12-V 4-A output half-bridge reference design
PMP40500 — This 12-V, 42-A output half-bridge reference design is for bus converters in wired networking campus and branch switches. The design features high efficiency and various fault protections (over-current, short-circuit). The guide provides a efficiency comparison using 3kVrms basic and functional (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

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