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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) 2.25 Rail-to-rail In to V-, Out GBW (Typ) (MHz) 10 Slew rate (Typ) (V/us) 4.75 Vos (offset voltage @ 25 C) (Max) (mV) 0.5 Iq per channel (Typ) (mA) 0.89 Vn at 1 kHz (Typ) (nV/rtHz) 5 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 0.35 Features EMI Hardened CMRR (Typ) (dB) 120 Output current (Typ) (mA) 50 Architecture CMOS open-in-new Find other General-purpose op amps

Package | Pins | Size

SOT-SC70 (DCK) 5 4 mm² 2 x 2.1 open-in-new Find other General-purpose op amps

Features

  • Low broadband noise: 3.5 nV/√Hz
  • Low offset voltage: 500 µV (maximum)
  • Low THD+N: 0.00015%
  • Gain bandwidth: 10 MHz
  • Rail-to-rail output
  • Unity-gain stable
  • Low IQ:
    • OPA375: 890 µA/ch
    • OPA2375/OPA4375: 990 µA/ch
  • Wide supply range:
    • OPA375: 2.25 V to 5.5 V
    • OPA2375/OPA4375: 1.7 V to 5.5 V
  • Low offset voltage drift: ±0.16 µV/°C
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Description

The OPAx375 family includes single (OPA375), dual (OPA2375) and quad-channel (OPA2375) general-purpose CMOS operation amplifiers (op amp) that provide an extremely low noise figure of 3.5 nV/√Hz, a low offset of 500 µV (maximum) and a wide bandwidth of 10 MHz. The low noise and wide bandwidth make the OPAx375 family attractive for a variety of precision applications that require a good balance between cost and performance. Additionally, the input bias current of the OPAx375 supports applications with high source impedance.

The robust design of the OPAx375 family provides ease-of-use to the circuit designer due to the unity-gain stability, integrated RFI/EMI rejection filter, no phase reversal in overdrive conditions, and high electrostatic discharge (ESD) protection (2-kV HBM). Additionally, the resistive open-loop output impedance allows for easy stabilization with much higher capacitive loads.

This op amp is optimized for low-voltage operation as low as 2.25 V (±1.125 V) for the OPA375 and 1.7 V (±0.85 V) for the OPA2375 and OPA4375. All of the devices operate up to 5.5 V (±2.75 V), and are specified over the temperature range of –40°C to 125°C.

The single-channel OPA375 is available in a small-size SC70-5 package. The dual-channel OPA2375 is available in multiple package options including a tiny 1.5 mm × 2.0 mm X2QFN package.

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Technical documentation

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Type Title Date
* Data sheet OPA375, OPA2375, OPA4375 500-µV (Maximum), 10-MHz, Low Broadband Noise, RRO, Operational Amplifier datasheet (Rev. E) Aug. 31, 2021
Application note Transimpedance amplifier with T-network circuit Mar. 12, 2021
Application note Low-pass, filtered, non-inverting amplifier circuit Jan. 27, 2021
Technical article What is an op amp? Jan. 21, 2020
Application note Do You Really Need Rail-to-Rail Input Amplifiers? Jan. 02, 2019
Application note Single-supply, low-side, unidirectional current-sensing circuit Dec. 30, 2018
Technical article How to lay out a PCB for high-performance, low-side current-sensing designs Feb. 06, 2018
Technical article Low-side current sensing for high-performance cost-sensitive applications Jan. 22, 2018
Technical article Voltage and current sensing in HEV/EV applications Nov. 22, 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
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 (...)

Design tools & simulation

SIMULATION MODEL Download
SBOMAJ4B.ZIP (31 KB) - PSpice Model
SIMULATION MODEL Download
SBOMAJ5.ZIP (4 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOMAJ6.ZIP (37 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 (...)
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
  • (...)
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 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
Inverting amplifier with T-network feedback circuit
CIRCUIT060013 — This design inverts the input signal, VIN, and applies a signal gain of 1000 V/V or 60 dB. The inverting amplifier with T-feedback network can be used to obtain a high gain without a small value for R4 or very large values for the feedback resistors.
Features
  • Dual +/- 5-V supply
  • Input: +/- 2.5 mV
  • Output: +/- 2.5 V
  • Bandwidth: 5 kHz
  • Gain: 1000 V/V
DESIGN TOOL Download
Adjustable reference voltage circuit
CIRCUIT060015 — This circuit combines an inverting and non-inverting amplifier to make a reference voltage adjustable from the negative of the input voltage up to the input voltage. Gain can be added to increase the maximum negative reference level.
Features
  • Dual +/- 15-V supply
  • Input: 10 V
  • Output: 0 V to 10 V
DESIGN TOOL Download
SBOC523.ZIP (13 KB)
DESIGN TOOL Download
SBOC527.ZIP (26 KB)
DESIGN TOOL Download
SBOC528.ZIP (19 KB)

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 5 View options

Ordering & quality

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  • Ongoing reliability monitoring

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