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Product details

Parameters

Number of channels (#) 2 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 Total supply voltage (Min) (+5V=5, +/-5V=10) 1.8 Rail-to-rail In, Out GBW (Typ) (MHz) 1 Slew rate (Typ) (V/us) 0.5 Vos (offset voltage @ 25 C) (Max) (mV) 2.5 Iq per channel (Typ) (mA) 0.05 Vn at 1 kHz (Typ) (nV/rtHz) 25 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 2 Features EMI Hardened, Small Size Input bias current (Max) (pA) 10 CMRR (Typ) (dB) 80 Output current (Typ) (mA) 15 Architecture CMOS open-in-new Find other General-purpose op amps

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9 WSON (DRG) 8 9 mm² 3 x 3 open-in-new Find other General-purpose op amps

Features

  • Low IQ: 50 µA/ch
  • Wide Supply Range: 1.8 V to 5.5 V
  • Low Noise: 25 nV/√Hz at 1 kHz
  • Gain Bandwidth: 1 MHz
  • Low Input Bias Current: 0.2 pA
  • Low Offset Voltage: 0.5 mV
  • Unity-Gain Stable
  • Internal RF/EMI Filter
  • Extended Temperature Range:
    –40°C to +125°C
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Description

The OPA313 family of single-, dual-, and quad-channel op amps represents a new generation of low-cost, general purpose, micro-power operational amplifiers. Featuring rail-to-rail input and very low noise (25 nV/√Hz at 1 kHz) makes this family very attractive for a variety of battery-powered applications that require a good balance between cost and performance. The low input bias current supports those op amps to be used in applications with megaohm source impedances.

The robust design of the OPA313 devices provides ease-of-use to the circuit designer: unity-gain stability with capacitive loads of up to 150 pF, integrated RF/EMI rejection filter, no phase reversal in overdrive conditions, and high electrostatic discharge (ESD) protection (4-kV HBM).

These devices are optimized for operation at voltages as low as +1.8 V (±0.9 V) and up to +5.5 V (±2.75 V), and are specified over the extended temperature range of –40°C to +125°C.

The OPA313 (single) is available in both SC70-5 and SOT23-5 packages. The OPA2313 (dual) is offered in SO-8, MSOP-8, and DFN-8 packages. The quad-channel OPA4313 is offered in a TSSOP-14 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 7
Type Title Date
* Datasheet 1-MHz, Micro-Power, Low-Noise, RRIO, 1.8-V CMOS Op Amp Precision Value Line Seri datasheet (Rev. C) Mar. 06, 2013
Technical articles What is an op amp? Jan. 21, 2020
E-book Analog Engineer’s Pocket Reference Guide Fifth Edition (Rev. C) Nov. 30, 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
Technical articles Voltage and current sensing in HEV/EV applications Nov. 22, 2017
E-book The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017

Design & development

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

Hardware development

EVALUATION BOARD Download
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 BOARD Download
10
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 BOARD Download
20
Description
The DUAL-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 designed specifically for dual package op amps in the (...)
Features
  • 10 circuit configurations to choose from: Non-Inverting, Inverting, Active Filters, Difference Amplifier with Reference Buffer, and more!
  • Multiple interface options: SMA, Header, Breadboard, Wire
  • Designed for 0805 size components; 0603 size friendly
  • Circuit schematic provided in silkscreen on the back (...)

Design tools & simulation

SIMULATION MODEL Download
SBOM775A.ZIP (4 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOM776A.ZIP (127 KB) - TINA-TI Reference Design
SIMULATION TOOL 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 TOOL 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 (...)
CALCULATION TOOL 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
±1A Single-Supply Low-Side Current Sensing Solution Reference Design
TIPD175 This single-supply low-side, bi-directional current sensing solution can accurately detect load currents from -1 A to 1 A. The linear range of the output is from 110 mV to 3.19 V. The design utilizes the OPA2313 configured as a difference amplifier and reference voltage buffer.
document-generic Schematic
Design files

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
SON (DRG) 8 View options
VSSOP (DGK) 8 View options

Ordering & quality

Information included:
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  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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