Home Amplifiers Operational amplifiers (op amps) General-purpose op amps
Home
Amplifiers
Operational amplifiers (op amps)
General-purpose op amps

OPA2743

ACTIVE

Dual, 12-V, 7-MHz operational amplifier

Order now
Data sheet

A newer version of this product is available

open-in-new Compare products
Drop-in replacement with upgraded functionality to the compared device.
TLV9162 ACTIVE Dual, 16-V, 11-MHz, rail-to-rail input and output low-offset-voltage low-noise operational amplifier Rail-to-rail I/O, wider supply range (2.7 V to 16 V), higher GBW (11 MHz), faster slew rate (33 V/us), lower offset voltage (1 mV), lower noise (6.8 nV/√Hz)

OPA2743

ACTIVE
Data sheet Order now

Product details

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3.5 Rail-to-rail In to V-, Out GBW (typ) (MHz) 7 Slew rate (typ) 10 Vos (offset voltage at 25°C) (max) (mV) 7 Iq per channel (typ) (mA) 1.1 Vn at 1 kHz (typ) (nV√Hz) 30 Rating Catalog Operating temperature range (°C) -40 to 85 Offset drift (typ) (V/°C) 0.000008 Input bias current (max) (pA) 10 CMRR (typ) (dB) 84 Iout (typ) (A) 0.03 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.075 Output swing headroom (to positive supply) (typ) (V) -0.075
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3.5 Rail-to-rail In to V-, Out GBW (typ) (MHz) 7 Slew rate (typ) 10 Vos (offset voltage at 25°C) (max) (mV) 7 Iq per channel (typ) (mA) 1.1 Vn at 1 kHz (typ) (nV√Hz) 30 Rating Catalog Operating temperature range (°C) -40 to 85 Offset drift (typ) (V/°C) 0.000008 Input bias current (max) (pA) 10 CMRR (typ) (dB) 84 Iout (typ) (A) 0.03 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.075 Output swing headroom (to positive supply) (typ) (V) -0.075
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • HIGH SPEED: 7MHz, 10V/us
  • RAIL-TO-RAIL INPUT AND OUTPUT
  • WIDE SUPPLY RANGE:
    • Single Supply: 3.5V to 12V
    • Dual Supplies: ±1.75V to ±6V
  • LOW QUIESCENT CURRENT: 1.1mA
  • FULL-SCALE CMRR: 84dB
  • MicroSIZE PACKAGES: SOT23-5,MSOP-8,TSSOP-14
  • LOW INPUT BIAS CURRENT: 1pA
  • APPLICATIONS
    • LCD GAMMA CORRECTION
    • AUTOMOTIVE APPLICATIONS: Audio, Sensor Applications, Security Systems
    • PORTABLE EQUIPMENT
    • ACTIVE FILTERS
    • TRANSDUCER AMPLIFIER
    • TEST EQUIPMENT
    • DATA ACQUISITION
  • HIGH SPEED: 7MHz, 10V/us
  • RAIL-TO-RAIL INPUT AND OUTPUT
  • WIDE SUPPLY RANGE:
    • Single Supply: 3.5V to 12V
    • Dual Supplies: ±1.75V to ±6V
  • LOW QUIESCENT CURRENT: 1.1mA
  • FULL-SCALE CMRR: 84dB
  • MicroSIZE PACKAGES: SOT23-5,MSOP-8,TSSOP-14
  • LOW INPUT BIAS CURRENT: 1pA
  • APPLICATIONS
    • LCD GAMMA CORRECTION
    • AUTOMOTIVE APPLICATIONS: Audio, Sensor Applications, Security Systems
    • PORTABLE EQUIPMENT
    • ACTIVE FILTERS
    • TRANSDUCER AMPLIFIER
    • TEST EQUIPMENT
    • DATA ACQUISITION

The OPA743 series utilizes a state-of-the-art 12V analog CMOS process and offers outstanding AC performance, such as 7MHz GBW, 10V/us slew rate and 0.0008% THD+N. Optimized for single supply operation up to 12V, the input common-mode range extends beyond the power supply rails and the output swings to within 100mV of the rails. The low quiescent current of 1.1mA makes it well suited for use in battery operated equipment.

The OPA743 series\x92 ability to drive high output currents together with 12V operation makes it particularly useful for use as gamma correction reference buffer in LCD panels.

For ease of use the OPA743 op-amp family is fully specified and tested over the supply range of ±1.75V to ±6V. Single, dual and quad versions are available.

The single versions (OPA743) are available in the MicroSIZE SOT23-5 and in the standard SO-8 surface-mount, as well as DIP-8 packages. Dual versions (OPA2743) are available versions in the MSOP-8, SO-8, and DIP-8 packages. The quad versions (OPA4743) are available in the TSSOP-14 and SO-14 packages. All are specified for operation from \x9640°C to +85°C.

The OPA743 series utilizes a state-of-the-art 12V analog CMOS process and offers outstanding AC performance, such as 7MHz GBW, 10V/us slew rate and 0.0008% THD+N. Optimized for single supply operation up to 12V, the input common-mode range extends beyond the power supply rails and the output swings to within 100mV of the rails. The low quiescent current of 1.1mA makes it well suited for use in battery operated equipment.

The OPA743 series\x92 ability to drive high output currents together with 12V operation makes it particularly useful for use as gamma correction reference buffer in LCD panels.

For ease of use the OPA743 op-amp family is fully specified and tested over the supply range of ±1.75V to ±6V. Single, dual and quad versions are available.

The single versions (OPA743) are available in the MicroSIZE SOT23-5 and in the standard SO-8 surface-mount, as well as DIP-8 packages. Dual versions (OPA2743) are available versions in the MSOP-8, SO-8, and DIP-8 packages. The quad versions (OPA4743) are available in the TSSOP-14 and SO-14 packages. All are specified for operation from \x9640°C to +85°C.
open-in-new Find other General-purpose op amps
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 7
Type Title Date
* Data sheet OPA743, OPA2743, OPA4743: CMOS, Rail-to-Rail, I/O Operational Amplifiers datasheet 10 Apr 2001
Technical article What is an op amp? 21 Jan 2020
Technical article How to lay out a PCB for high-performance, low-side current-sensing designs 06 Feb 2018
Technical article Low-side current sensing for high-performance cost-sensitive applications 22 Jan 2018
Technical article Voltage and current sensing in HEV/EV applications 22 Nov 2017
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Application note OPA743, OPA2743, OPA4743 EMI Immunity Performance (Rev. A) 03 Nov 2012

Design & development

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

Evaluation board

DIP-ADAPTER-EVM — DIP adapter evaluation module

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 (...)

User guide: PDF
Not available on TI.com
Evaluation board

DUAL-DIYAMP-EVM — Dual Channel Universal Do-It-Yourself (DIY) Amplifier Circuit Evaluation Module

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 (...)
User guide: PDF
Not available on TI.com
Simulation model

OPA2743 PSpice Model

SBOM558.ZIP (38 KB) - PSpice Model
Download
Simulation model

OPA2743 TINA-TI Reference Design

SBOM560.TSC (100 KB) - TINA-TI Reference Design
Download
Simulation model

OPA2743 TINA-TI Spice Model

SBOM559.ZIP (5 KB) - TINA-TI Spice Model
Download
Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

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 operational-amplifier (...)
lock = Requires export approval (1 minute)
Download
Design tool

CIRCUIT060013 — Inverting amplifier with T-network feedback circuit

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.
View options
Design tool

CIRCUIT060015 — Adjustable reference voltage circuit

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.
View options
Design tool

CIRCUIT060074 — High-side current sensing with comparator circuit

This high-side, current sensing solution uses one comparator with a rail-to-rail input common mode range to create an over-current alert (OC-Alert) signal at the comparator output (COMP OUT) if the load current rises above 1 A. The OC-Alert signal in this implementation is active low. So when the (...)
View options
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Request
Simulation tool

TINA-TI — SPICE-based analog simulation program

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 (...)
User guide: PDF
View options
Package Pins Download
SOIC (D) 8 View options
VSSOP (DGK) 8 View options

Ordering & quality

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

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos