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Product details

Parameters

Number of channels (#) 1 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 Total supply voltage (Min) (+5V=5, +/-5V=10) 4 Vos (offset voltage @ 25 C) (Max) (mV) 0.025 GBW (Typ) (MHz) 2 Slew rate (Typ) (V/us) 0.8 Rail-to-rail In to V-, Out Offset drift (Typ) (uV/C) 0.03 Iq per channel (Typ) (mA) 0.425 Vn at 1 kHz (Typ) (nV/rtHz) 8.8 CMRR (Typ) (dB) 114 Rating Catalog Operating temperature range (C) -40 to 125 Input bias current (Max) (pA) 1400 Output current (Typ) (mA) 18 Features EMI Hardened, Zero Drift Architecture CMOS open-in-new Find other Precision op amps (Vos<1mV)

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other Precision op amps (Vos<1mV)

Features

  • Low offset voltage: 25 µV (maximum)
  • Zero drift: 0.03 µV/°C
  • Low noise: 8.8 nV/√Hz
    • 0.1-Hz to 10-Hz Noise: 0.25 µVPP
  • Excellent dc precision:
    • PSRR: 142 dB
    • CMRR: 146 dB
    • Open-loop gain: 136 dB
  • Gain bandwidth: 2 MHz
  • Quiescent current: 510 µA (Maximum)
  • Wide supply range: ±2 V to ±18 V
  • Rail-to-rail output
  • Input includes negative rail
  • RFI filtered inputs
  • MicroSIZE packages

All trademarks are the property of their respective owners.

open-in-new Find other Precision op amps (Vos<1mV)

Description

The OPA188 operational amplifier uses TI’s proprietary auto-zeroing techniques to provide low offset voltage (25-µV maximum) and near zero-drift over time and temperature. This miniature, high-precision, low-quiescent current amplifier offers high input impedance and rail-to-rail output swing within 15 mV of the rails. The input common-mode range includes the negative rail. Either single or dual supplies can be used in the range from 4 V to 36 V (±2 V to ±18 V).

The single version is available in the MicroSIZE SOT-23-5, MSOP-8, and SO-8 packages. All versions are specified for operation from –40°C to +125°C.

open-in-new Find other Precision op amps (Vos<1mV)
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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet OPA188 Precision, Low-Noise, Rail-to-Rail Output, 36-V, Zero-Drift Operational Amplifier datasheet (Rev. C) Jan. 27, 2020
Application notes EMI-Hardened Op Amps Reduce Errors in Infusion Pumps (Rev. A) Aug. 21, 2019
Application notes Circuit for offset adjustment of input signals using precision DAC Jan. 25, 2019
Application notes AC coupled instrumentation amplifier circuit Jan. 09, 2019
Application notes Multichannel Analog Input Modules for PLC Equipment Jan. 04, 2019
White papers Analog Engineer’s Pocket Reference Guide Fifth Edition (Rev. C) Nov. 30, 2018
Application notes Maximize Weigh Scale Accuracy With EMI-Hardened Amplifiers Sep. 27, 2018
Application notes Zero-drift Amplifiers: Features and Benefits (Rev. B) Aug. 31, 2018
Technical articles Unique active mux capability combines buffer and switch into one solution Oct. 10, 2017
Technical articles Transimpedance amplifier designs for high-performance, cost-sensitive smoke detector applications Aug. 10, 2017
Application notes Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. A) Jul. 20, 2017
White papers The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Technical articles Four ways to design an amplifier without a rail-to-rail op amp Jul. 21, 2016
Technical articles Amp up your cans: Is your op amp stable? (Part 2) Jan. 22, 2016
Application notes Combined Voltage and Current Output with the DACx760 Jul. 24, 2014
Application notes Compensate Transimpedance Amplifiers Intuitively (Rev. A) Mar. 30, 2005

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
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
SBOM806B.TSC (293 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOM807B.ZIP (10 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SBOMAO2A.ZIP (15 KB) - PSpice 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
  • (...)
CALCULATION TOOLS 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 TOOLS 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 TOOLS 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 TOOLS 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 TOOLS 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 (...)
document-generic User guide
Features
  • Single 5V Supply 
  • Passes frequencies between 0.7Hz - 10Hz 
  • AC Gain: 90dB
DESIGN TOOLS 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 TOOLS 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 (...)
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 TOOLS 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 TOOLS 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 TOOLS 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 TOOLS 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

Reference designs

REFERENCE DESIGNS Download
Active Integrator for Rogowski Coil Reference Design with Improved Accuracy for Relay and Breaker
TIDA-00777 — The TIDA-00777 TI Design shows an active integrator design that covers wide input current range for Rogowski Coil with excellent accuracy, linearity, stability and repeatability. The integrator uses a precision amplifier with very low offset and temperature drift. Two configurations of the (...)
document-generic Schematic
REFERENCE DESIGNS Download
Extended Current and Voltage Measurement Using Shunts for Protection Relays Reference Design
TIDA-00738 The TIDA-00738 TI design demonstrates a unique approach for extending the current measurement range using a single shunt and voltage measurement using AMC1304Mx5 Isolated Delta-Sigma (ΔΣ) modulator. With careful selection of a low value shunt resistor that minimizes power dissipation, a (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Multi-Channel Analog Output Module With Multiplexed Single-Channel DAC for PLCs Reference Design
TIDA-00760 This reference design helps achieve low-cost, high-speed, small form-factor and high resolution for programmable logic controller (PLC) analog output module designs based on sequentially multiplexed sample and hold buffers.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
16-Bit Analog Mixed Input and Output Module for Programmable Logic Controller (PLC) Reference Design
TIDA-00170 The TIDA-00170 is a reference design for industrial control Analog Mixed Input Output Modules. The design implements four channel analog input & two channel analog output. The analog input channels can measure all standard industrial voltages up to ±10V and current inputs up to 24mA. The (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
16-Bit Analog Output Module Reference Design for Programmable Logic Controllers (PLC)
TIDA-00118 This reference design provides a complete 4-channel, 16-bit analog output module design for Programmable Logic Controllers (PLCs). It is designed and fully tested to meet IEC61000-4 EMC and surge requirements for industrial automation systems. The small form-factor design implements four 16-bit (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Instrumentation Amplifier with DC Rejection Reference Design
TIPD191 This design is an ac coupled instrumentation amplifier. More specifically, the circuit amplifies ac differential input signals and rejects dc differential and common mode signals. The input is dc coupled, so it achieves effective ac coupling by shifting the instrumentation amplifier reference (...)
document-generic Schematic document-generic User guide
Design files
REFERENCE DESIGNS Download
Level Translation: Dual to Single Supply Amp, ±15V to 5V
TIPD148 Translating a ±15V signal to a single supply 5V signal for use with an ADC is a common circuit requirement.  This Dual Supply to Single Supply Amplifier circuit design translates a ±15V signal to a 0V to 5V signal.  The output of this design will not be outside of 0-5V (...)
document-generic Schematic document-generic User guide
Design files
REFERENCE DESIGNS Download
Analog Input, Output and Relay Drive Output Module for Smart Grid IEDs Reference Design
TIDA-00310 This reference design showcases a flexible Analog IO solution for Smart Grid devices like Protection Relays and RTUs that also need to communicate with other devices on the grid that use the analog IO such as voltage (5V to 10V DC) or current (4-20mA). This solution enables both types of IO as well (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Op Amp with Single Discrete Bipolar Transistor Output Drive
TIPD146 Driving a low resistance load with a precision amplifier is an important requirement for many systems.  This function can be achieved with power op amps, but cost may be prohibitive.  This TI Precision design shows how to achieve high output drive capability using a precision (...)
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Design files
REFERENCE DESIGNS Download
Bipolar +/-10V Output from a Unipolar DAC for Industrial Voltage Drivers
TIPD125 This Verified Design is for conditioning a low-cost, unipolar, generic DAC into an accurate bipolar signal source using an op amp and 3 resistors. The circuit is designed with reactive load stability in mind and is compensated to drive nearly any conventional capacitive load associated with long (...)
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CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
SOT-23 (DBV) 5 View options
VSSOP (DGK) 8 View options

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