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Product details

Parameters

Number of channels (#) 1 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.1 Rail-to-rail In, Out GBW (Typ) (MHz) 1 Slew rate (Typ) (V/us) 0.5 Vos (offset voltage @ 25 C) (Max) (mV) 5 Iq per channel (Typ) (mA) 0.045 Vn at 1 kHz (Typ) (nV/rtHz) 35 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 4 Input bias current (Max) (pA) 10 CMRR (Typ) (dB) 82 Output current (Typ) (mA) 10 Architecture CMOS open-in-new Find other General-purpose op amps

Package | Pins | Size

SOIC (D) 8 19 mm² 3.91 x 4.9 SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 SOT-SC70 (DCK) 5 4 mm² 2 x 2.1 open-in-new Find other General-purpose op amps

Features

  • Low IQ: 45 µA (Typical)
  • Rail-To-Rail Input and Output
  • Single Supply: 2.1 V to 5.5 V
  • Input Bias Current: 0.5 pA
  • Micro Size Packages:
    • 5-Pin SC70
    • 8-Pin SOT-23
    • 14-Pin TSSOP
  • Excellent Bandwidth-to-Power Consumption Trade-off
  • Number of Channels:
    • OPA348: 1
    • OPA2348: 2
    • OPA4348: 4
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Description

The OPAx348 series of amplifiers are single-supply, low-power, CMOS operational amplifiers. Featuring an extended bandwidth of 1 MHz, and a supply current of 45 µA, the OPAx348 series is useful for low-power applications on single supplies of 2.1 V to 5.5 V.

A low supply current of 45 µA and an input bias current of 0.5 pA, makes the OPAx348 series an optimal candidate for low-power applications such as smoke detectors and other high-impedance sensors.

The OPA348 is available in the miniature 5-pin SC70 (SOT), 5-pin SOT-23 (SOT), and 8-pin SO (SOIC) packages. The OPA2348 is available in 8-pin SOT-23 (SOT) and 8-pin SO (SOIC) packages, and the OPA4348 is offered in space-saving 14-pin TSSOP and 14-pin SO (SOIC) packages. The extended temperature range of –40°C to +125°C over all supply voltages offers design flexibility.

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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 6
Type Title Date
* Datasheet OPAx348 1-MHz, 45-μA, CMOS, Rail-to-Rail Operational Amplifiers datasheet (Rev. H) Jan. 20, 2016
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

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
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
SBOC001A.ZIP (39 KB) - PSpice Model
SIMULATION MODELS Download
SBOC201B.TSC (158 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOM279A.ZIP (8 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
Reference Design for Line AC Voltage Generation From Low-Voltage DC Source for Sensor Excitation
TIDA-01426 This reference design demonstrates a method for designers to achieve high-voltage signals that can be used for flame detection using discrete components. The reference design is built with low BOM-cost and small solution size in mind. By using push-pull converter topology, it is possible to achieve (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive USB Charging Port Supply Reference Design With Programmable Cable Compensation
PMP9795 This reference design includes a power management circuit  capable of controlling a remote USB charging port in an automotive application environment. The circuit can be supplied directly from the car battery rail. It uses a small and highly efficient step-down converter, the TPS62130A-Q1, to (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Capacitor-Based Backup Power Supply for PLC Modules Reference Design
TIDA-00500 TIDA-00500 is a reference design to provide power to load for short duration of time after a power interrupt has occurred. Traditionally Programmable Logic Controllers (PLCs) are equipped with a recharge battery source for alternative power. This battery source often suffers from drawbacks like (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Mobile Phone Bank Card Reader
TIDM-BANKCARDREADER This solution implements a magnetic card reader for smart phones based on MSP430G2432 microcontroller. The reader is designed for reading out the content of the bank card based on ISO7811 and sending the card's information (such as card ID and expiration data, etc.) back to the mobile host.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Hardware Pace Detection for ECG Reference Design
TIPD111 This Verified Design outlines a hardware pace detection solution for ECG using slope detection. The circuit is designed to work smoothly with the ADS1298 through the PACEOUT pins from the ADC directly feeding the input of the pace detection circuit. When a pace signal is detected, the output from (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 5 View options
SOIC (D) 8 View options
SOT-23 (DBV) 5 View options

Ordering & quality

Support & training

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