The OPA27U is a specialized integrated circuit (IC) manufactured by Luminary Micro/Texas Instruments, designed to meet precision operational amplifier requirements across various electronic applications. This high-performance operational amplifier is engineered to deliver exceptional signal processing capabilities in compact electronic systems.
The device comes in a Small Outline Package (SOP), which enables efficient space utilization and facilitates easier circuit board integration. Its compact 611 package design addresses critical design challenges related to miniaturization and density in modern electronic equipment.
With a substantial available quantity of 2,465 units, the OPA27U offers engineers and designers flexibility in prototype development and production scaling. The component is particularly well-suited for applications requiring precise analog signal amplification and processing, such as instrumentation, medical devices, telecommunications equipment, and industrial control systems.
Key advantages of the OPA27U include its specialized performance characteristics, compact form factor, and reliable signal handling capabilities. The operational amplifier is engineered to provide high-precision signal conditioning and amplification with minimal noise and distortion.
Compatibility considerations suggest the device is optimized for integration with various analog and digital electronic systems, making it versatile across multiple engineering domains. While specific equivalent models are not directly mentioned in the provided specifications, similar precision operational amplifiers from Texas Instruments or comparable manufacturers might serve comparable functions.
Professionals in electronics design, telecommunications, instrumentation, and embedded systems will find the OPA27U a valuable component for developing sophisticated analog signal processing solutions with high reliability and performance.
OPA27U Key Technical Attributes
Manufacturer Part Number OPA27U
Manufacturer Luminary Micro Texas Instruments
Type Precision operational amplifier single channel unity gain stable
Input Offset Voltage typical 25 µV maximum value per grade see datasheet
Offset Drift typical 0.3 µV per degree Celsius low long term stability
Input Voltage Noise Density typical 3 nV per square root Hertz at 1 kHz very low 1 f corner
0.1 to 10 Hz Noise low approximately a few hundred nanovolts peak to peak class leading
Gain Bandwidth Product typical around 8 MHz for precision applications
Slew Rate typical about 2.8 V per microsecond fast settling for precision steps
Input Bias Current typical ~10 nA low input current suitable for high impedance sources
Open Loop Gain typical ≥120 dB excellent linearity and precision
CMRR and PSRR typical ≥120 dB strong rejection of common mode and supply variations
Supply Voltage Range dual supplies from approximately ±4 V to ±18 V not rail to rail
Output Drive capability for loads down to about 600 ohms with wide voltage swing
Package Identification U suffix indicates SOIC SOP 8 pin surface mount
OPA27U Packing Size
Package Type SOP SOIC 8 pin U suffix TI standard
Package Case 611 vendor package code reference
Body Size approximately 4.9 mm x 3.9 mm x 1.5 mm typical SOIC 8 dimensions
Lead Pitch 1.27 mm standard gull wing leads
Pin Configuration 1 Offset Trim 2 Inverting Input 3 Non Inverting Input 4 V minus 5 Offset Trim 6 Output 7 V plus 8 No Connect
Materials epoxy molding compound copper leadframe matte tin Pb free plating
Thermal Characteristics typical theta JA around 95 to 120 degrees C per Watt in still air typical theta JC around 45 to 55 degrees C per Watt exact values depend on board layout
Electrical Properties ESD HBM typically around 2 kV latch up immunity per JEDEC tested moisture sensitivity level MSL 1 unlimited at 30 C 85 percent RH under proper storage
OPA27U Application
Precision sensor signal conditioning strain gauges thermocouples RTDs and bridge circuits
Data acquisition front ends precision ADC driver and buffer DAC output buffer
Low noise instrumentation amplifiers and active filters for audio and measurement
Transimpedance amplifiers for photodiodes and other current output sensors
Precision servo control loop error amplifiers and references
Medical instrumentation laboratory equipment imaging and analytical devices
Weigh scales metrology systems and reference level measurement chains
OPA27U Features
The OPA27U is a high precision low noise operational amplifier optimized for demanding measurement tasks. Its exceptionally low input offset and drift deliver stable accuracy over time and temperature, reducing the need for frequent recalibration. The very low broadband noise density around 3 nV per square root Hertz and a low 1 f corner enable excellent performance from sub hertz to kilohertz frequencies, making it ideal for low level signal work and precision filters. With a gain bandwidth near 8 MHz and a slew rate around 2.8 V per microsecond, it settles rapidly to final value, supporting fast step changes without sacrificing precision. High open loop gain and excellent common mode and power supply rejection provide robust linearity and immunity to interference. Unity gain stability simplifies use in buffer configurations, while offset trim pins allow fine calibration when absolute minimum offset is required. The amplifier can drive moderate loads such as 600 ohms with wide output swing on dual supplies, and its low input bias current suits high impedance sources. The SOIC SOP 8 package provides a compact surface mount footprint with standard pinout for easy layout and replacement.
OPA27U Quality and Safety Features
Devices are available in lead free RoHS compliant finishes with matte tin plating over copper leadframe and use high reliability epoxy molding compounds. ESD protection is integrated and validated to industry human body model levels, with robust latch up immunity per JEDEC standards. Moisture sensitivity level is typically MSL 1, offering unlimited floor life at standard conditions, which simplifies storage and handling. Thermal characteristics are well understood for the SOIC package and, when combined with good PCB copper area and airflow, allow safe operation across the specified temperature range. For applications that require extended temperature or specific regulatory certifications, the datasheet and product options outline available grades and recommended derating practices.
OPA27U Compatibility
OPA27U is pin compatible with the industry standard OP27 family and fits the ubiquitous SOIC SOP 8 single op amp footprint, allowing straightforward drop in use in many legacy precision designs. It is functionally compatible with precision single op amps used in dual supply systems and integrates easily into instrumentation amplifiers, active filters, and transimpedance stages. Standard offset trim pins on 1 and 5 enable compatibility with circuits that implement external offset null networks. The device is not rail to rail, so designs expecting rail to rail behavior should verify headroom requirements; otherwise most precision dual supply op amp designs can adopt OPA27U with minimal changes.
OPA27U Datasheet PDF
Our website hosts the most authoritative and up to date datasheet for the OPA27U. For the most accurate specifications, electrical characteristics, package details, and application guidance, we strongly recommend downloading the Datasheet PDF directly from this product page so you have the official reference for design and qualification.
Quality Distributor
IC Components is a premium authorized distributor for Luminary Micro Texas Instruments products, offering genuine OPA27U inventory, professional technical support, and fast fulfillment. With 2465 units currently listed, we invite you to request a quote on our website today to secure competitive pricing and reliable supply for your project.
