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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) 2.7 Vos (offset voltage @ 25 C) (Max) (mV) 0.5 GBW (Typ) (MHz) 38 Features Slew rate (Typ) (V/us) 22 Rail-to-rail In, Out Offset drift (Typ) (uV/C) 4 Iq per channel (Typ) (mA) 5.2 Vn at 1 kHz (Typ) (nV/rtHz) 7 CMRR (Typ) (dB) 84 Rating Catalog Operating temperature range (C) -40 to 85 Input bias current (Max) (pA) 10 Output current (Typ) (mA) 80 Architecture CMOS THD + N @ 1 kHz (Typ) (%) 0.0006 open-in-new Find other Precision op amps (Vos<1mV)

Package | Pins | Size

SOIC (D) 8 19 mm² 3.91 x 4.9 VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other Precision op amps (Vos<1mV)

Features

  • Rail-to-Rail Input
  • Rail-to-Rail Output (Within 10 mV)
  • Wide Bandwidth: 38 MHz
  • High Slew Rate: 22 V/µs
  • Low Noise: 5 nV/√Hz
  • Low THD+Noise: 0.0006%
  • Unity-Gain Stable
  • MicroSize Packages
  • Single, Dual, and Quad
open-in-new Find other Precision op amps (Vos<1mV)

Description

The OPA350 series of rail-to-rail CMOS operational amplifiers are optimized for low voltage, single-supply operation. Rail-to-rail input and output, low noise (5 nV/√Hz), and high speed operation (38 MHz, 22 V/µs) make the amplifiers ideal for driving sampling Analog-to-Digital (A/D) converters. They are also suited for cell phone PA control loops and video processing (75-Ω drive capability), as well as audio and general purpose applications. Single, dual, and quad versions have identical specifications for maximum design flexibility.

The OPA350 series operates on a single supply as low as 2.5 V, with an input common-mode voltage range that extends 300 mV below ground and 300 mV above the positive supply. Output voltage swing is to within 10 mV of the supply rails, with a 10-kΩ load. Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction.

The single (OPA350) and dual (OPA2350) come in the miniature MSOP-8 surface mount, SO-8 surface mount, and DIP-8 packages. The quad (OPA4350) packages are in the space-saving SSOP-16 surface mount and SO-14 surface mount. All are specified from –40°C to 85°C and operate from –55°C to 150°C.

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NEW OPA3S328 PREVIEW High-speed (40-MHz), high-precision (25-µV) , low-noise op amp with integrated gain switches For wider BW, lower noise, lower offset and integrated switches see the OPA3S328.

Technical documentation

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Type Title Date
* Data sheet OPAx350 High-Speed, Single-Supply, Rail-to-Rail Operational Amplifiers MicroAmplifier Series datasheet (Rev. D) Dec. 21, 2015
E-book The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Application note OPA350, OPA2350, OPA4350 EMI Immunity Performance (Rev. A) Nov. 02, 2012
White paper HVAC Dual AC Motor Control with Active PFC Implementation Using Piccolo™ MCUs Apr. 15, 2010
User guide DAP Signaling Conditioning Board Users Guide Jun. 18, 2003

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
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
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 BOARD Download
document-generic User guide
999
Description

This board supports: TAS2555YZEVMTAS2557EVM and TAS2559EVM.

The Smart Amplifier Speaker Characterization Board, when used in conjunction with a supported TI Smart Amplifier and PurePath Console software, provides users the ability to measure speaker excursion, temperature and other parameters for (...)

Features
  • Easily and quickly characterize speakers
  • Quick connection to TI Smart Amplifier EVMs
  • Microphone included for SPL measurements
  • Laser input for speaker excursion measurements
DEVELOPMENT KIT Download
document-generic User guide
17
Description

LAUNCHXL-F28027 is a low cost evaluation and development tool for the F2802x series in the TI MCU LaunchPad ecosystem which is compatible with various plug-on BoosterPacks (suggested under the Recommended BoosterPacks in the Features section below). The LaunchPad provides a standardized and easy (...)

Features

Hardware features

  • USB connected isolated XDS100 JTAG debug probe for real-time debug and flash programming
  • 2x 20-pin headers/connectors with access to all device pins
  • Programmable buttons and LEDs
  • Superset TMS320F28027: 60 MHz C28x CPU, 64 KB Flash, 8 PWM Channels, 12-bit ADC, capture interface, UART (...)

Design tools & simulation

SIMULATION MODEL Download
SBOC202E.TSC (324 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOM071C.ZIP (15 KB) - PSpice Model
SIMULATION MODEL Download
SBOM280D.ZIP (9 KB) - TINA-TI Spice Model
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 (...)
document-generic User guide
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
  • (...)
CALCULATION TOOL Download
Noise Calculator, Generator and Examples
OPAMP-NOISECALC This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:
  • A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data (...)
DESIGN TOOL Download
Single-supply, low-side, unidirectional current-sensing circuit
CIRCUIT060001 — This single–supply, low–side, current sensing solution accurately detects load current up to 1A and converts it to a voltage between 50mV and 4.9V. The input current range and output voltage range can be scaled as necessary and larger supplies can be used to accommodate larger swings.
document-generic User guide
Features
  • Senses Temperature between 25°C - 50°C 
  • Output: 0.05V - 3.25V 
  • Single 3.3V Supply with half-supply reference
DESIGN TOOL Download
Temperature sensing with NTC thermistor circuit
CIRCUIT060002 — This temperature sensing circuit uses a resistor in series with a negative–temperature–coefficient (NTC) thermistor to form a voltage divider, which has the effect of producing an output voltage that is linear over temperature. The circuit uses an op amp in a non–inverting (...)
document-generic User guide
Features
  • Senses Temperature between 25°C - 50°C 
  • Output: 0.05V - 3.25V 
  • Single 3.3V Supply with half-supply reference
DESIGN TOOL Download
Temperature sensing with PTC thermistor circuit
CIRCUIT060003 — This temperature sensing circuit uses a resistor in series with a positive–temperature–coefficient (PTC) thermistor to form a voltage–divider, which has the effect of producing an output voltage that is linear over temperature. The circuit uses an op amp in a non–inverting (...)
document-generic User guide
Features
  • Senses Temperature between 0°C - 50°C 
  • Output: 0.05V - 3.25V 
  • Single 3.3V Supply with half-supply reference
DESIGN TOOL Download
Low-noise and long-range PIR sensor conditioner circuit
CIRCUIT060004 — This two stage amplifier design amplifies and filters the signal from a passive infrared (PIR) sensor. The circuit includes multiple low–pass and high–pass filters to reduce noise at the output of the circuit to be able to detect motion at long distances and reduce false triggers. This (...)
Features
  • Single 5V Supply 
  • Passes frequencies between 0.7Hz - 10Hz 
  • AC Gain: 90dB
DESIGN TOOL Download
High-side current sensing with discrete difference amplifier circuit
CIRCUIT060005 — This single–supply, high–side, low–cost current sensing solution detects load current between 50mA and 1A and converters it to an output voltage from 0.25V to 5V. High–side sensing allows for the system to identify ground shorts and does not create a ground disturbance on the load.
document-generic User guide
Features
  • Single 36V supply 
  • Input: 50mA to 1A 
  • Output: 0.25V to 5V
DESIGN TOOL Download
Bridge amplifier circuit
CIRCUIT060006 — A strain gauge is a sensor whose resistance varies with applied force. To measure the variation in resistance, the strain gauge is placed in a bridge configuration. This design uses a 2 op amp instrumentation circuit to amplify a differential signal created by the change in resistance of a strain (...)
Features
  • Single 5V supply with half-supply reference
  • Input: -2.22mV to 2.27mV differential
  • Output: 225mV - 4.72V
  • Strain gauge resistance variation: 115 - 125 Ohms
  • Gain: 1001V/V
DESIGN TOOL Download
Low-side, bidirectional current-sensing circuit
CIRCUIT060007 — This single-supply low-side, bidirectional current sensing solution can accurately detect load currents from –1A to 1A. The linear range of the output is from 110mV to 3.19V. Low-side current sensing keeps the common-mode voltage near ground, and is thus most useful in applications with large (...)
document-generic User guide
Features
  • Single 5V supply with half-supply reference
  • Input: -2.22mV to 2.27mV differential
  • Output: 225mV - 4.72V 
  • Strain gauge resistance variation: 115 - 125 Ohms 
  • Gain: 1001V/V
DESIGN TOOL Download
Full-wave rectifier circuit
CIRCUIT060008 — This absolute value circuit can turn alternating current (AC) signals to single polarity signals. This circuit functions with limited distortion for ±10-V input signals at frequencies up to 50kHz and for signals as small as ±25mV at frequencies up to 1kHz.
document-generic User guide
Features
  • 30V Split supply with ground reference 
  • Input: +/-25mV to +/-10V 
  • Output: 25mV to 10V
DESIGN TOOL Download
Half-wave rectifier circuit
CIRCUIT060009 — The precision half-wave rectifier inverts and transfers only the negative-half input of a time varying input signal (preferably sinusoidal) to its output. By appropriately selecting the feedback resistor values, different gains can be achieved. Precision half-wave rectifiers are commonly used with (...)
Features
  • 5V Split supply 
  • Input: +/-0.2mVpp to +/-4Vpp 
  • Output: 0.1V to 2V
DESIGN TOOL Download
PWM generator circuit
CIRCUIT060010 — This circuit utilizes a triangle wave generator and comparator to generate a 500 kHz pulse-width modulated (PWM) waveform with a duty cycle that is inversely proportional to the input voltage. An op amp and comparator generate a triangle waveform which is applied to the inverting input of a second (...)
document-generic User guide
Features
  • 5V Single supply with half-supply reference 
  • Input: -2V to 2V 
  • Output: 0V to 5V
DESIGN TOOL Download
Single-supply, second-order, multiple feedback high-pass filter circuit
CIRCUIT060011 — The multiple-feedback (MFB) high-pass (HP) filter is a 2nd-order active filter. Vref provides a DC offset to accommodate for single-supply applications. This HP filter inverts the signal (Gain = –1 V/V) for frequencies in the pass band. An MFB filter is preferable when the gain is high or when (...)
Features
  • Single 5-V supply
  • Input: +/-2.45 V
  • Output: 50 mV to 4.95 V
  • Cutoff frequency: 1 kHz
  • Gain: -1 V/V
DESIGN TOOL Download
Single-supply, 2nd-order, multiple feedback low-pass filter circuit
CIRCUIT060012 — The multiple-feedback (MFB) low-pass filter (LP filter) is a second-order active filter. Vref provides a DC offset to accommodate for single-supply applications. This LP filter inverts the signal (Gain = –1 V/V) for frequencies in the pass band. An MFB filter is preferable when the gain is (...)
Features
  • Single 5-V supply
  • Input: +/-2.45 V
  • Output: 50 mV to 4.95 V
  • Cutoff frequency: 10 kHz
  • Gain: -1 V/V
DESIGN TOOL Download
Voltage-to-current (V-I) converter circuit with MOSFET
CIRCUIT060014 — This single-supply, low-side, V-I converter delivers a well-regulated current to a load which can be connected to a voltage greater than the op amp supply voltage. The circuit accepts an input voltage between 0 V and 2 V and converts it to a current between 0 mA and 100 mA. The current is accurately (...)
document-generic User guide
Features
  • Single 5-V supply
  • Input: 0 V to 2 V
  • Output: 0 mA to 100 mA
DESIGN TOOL Download
Non-inverting microphone pre-amplifier circuit
CIRCUIT060016 — This circuit uses a non–inverting amplifier circuit configuration to amplify the microphone output signal. This circuit has very good magnitude flatness and exhibits minor frequency response deviations over the audio frequency range. The circuit is designed to be operated from a single 5-V supply.
document-generic User guide
Features
  • Single 5-V supply
  • Input pressure: 100 dB SPL (2 Pa)
  • Max output: 1.228 Vrms
  • Frequency range: 20 Hz to 20 kHz
DESIGN TOOL Download
Dual-supply, discrete, programmable gain amplifier circuit
CIRCUIT060017 — This circuit provides programmable, non-inverting gains ranging from 6 dB (2 V/V) to 60 dB (1000 V/V) using a variable input resistance. The design maintains the same cutoff frequency over the gain range.
Features
  • Dual +/- 2.5-V supply
  • Input: +/- 1.25 V
  • Output: +/-2.4 V
  • Bandwidth: 7 kHz
  • Gain: 2 V/V to 1000 V/V
DESIGN TOOL Download
Photodiode amplifier circuit
CIRCUIT060018 — This circuit consists of an op amp configured as a transimpedance amplifier for amplifying the light dependent current of a photodiode.
document-generic User guide
Features
  • Single 5-V supply
  • Input: 0 μA to 2.4 μA
  • Output: 100 mV to 4.9 V
  • Bandwidth: 20 kHz
DESIGN TOOL Download
Inverting op amp with non-inverting positive reference voltage circuit
CIRCUIT060019 — This design uses an inverting amplifier with a non-inverting positive reference voltage to translate an input signal of –1 V to 2 V to an output voltage of 0.05 V to 4.95 V. This circuit can be used to translate a sensor output voltage with a positive slope and negative offset to a usable ADC (...)
Features
  • Single 5-V supply
  • Input: -1 V to 2 V
  • Output: 20 mV to 4.95 V
DESIGN TOOL Download
Inverting amplifier circuit
CIRCUIT060020 — This design inverts the input signal, Vi , and applies a signal gain of –2 V/V. The input signal typically comes from a low-impedance source because the input impedance of this circuit is determined by the input resistor, R1. The common-mode voltage of an inverting amplifier is equal to the (...)
Features
  • Dual +/- 15-V supply
  • Input: +/- 7 V
  • Output: +/-14 V
  • Bandwidth: 3 kHz
  • Gain: -2 V/V

Reference designs

REFERENCE DESIGNS Download
Data Acquisition for MUX and Step Inputs, 18 bits, 1uS Full Scale Response Reference Design
TIPD112 This TI Verified Design is a high performance data acquisition system (DAQ) using an 18-bit SAR ADC, ADS8881 at a throughput of 1MSPS. This design has been optimized to provide 18-bit settling performance for a Full Scale Step Input signal, thus leading to excellent system linearity. Such an input (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Multi-String RGB LED Lighting Driver based on C2000™ MCU
TIDM-RGB-LED Ideal for automotive, entertainment, retail, and decorative lighting applications, the Multi-String RGB LED Lighting design implements independent multi-string LED control with dimming and color mixing. The LED driver consists of 8 independent and digitally controlled DC/DC power converters driving (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Real-time Digital LED Control
TIDM-LPBP-LEDDRIVER The Real-time Digital LED Control reference design demonstrates the control of three boost converters to drive three LEDs (red, blue, and green) strings. This design allows development with real-time digital control of the various LEDs which makes it perfect for any industrial or automotive (...)
document-generic Schematic
REFERENCE DESIGNS Download
H-Bridge brushed and stepper motor control solution
TIDM-THREEPHASE-BSDC This reference design demonstrates a motor control solution for spinning three-phase brushed DC or single stepper motor - featuring the C2000™ Piccolo™ microcontroller and the DRV8412 three-phase motor driver. This highly integrated, robust motor control and driver solution speeds (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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

Ordering & quality

Information included:
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  • 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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