POWER AND LINEAR IC SOLUTIONS
Precision Op-Amps Suit Any Application 
New version features low power and zero-crossover operation

Products in Texas Instruments’ growing range of precision op-amps are optimised for a range of feature combinations that suit demanding applications. The family includes devices offering low-voltage and micropower operation, zero drift, rail-to-rail input and output, high CMRR and high bandwidth.

In addition to a wide choice of fundamental performance specifications, designers can also choose from additional features such as shutdown and ultra-low noise operation.


Lowest Power Zero-Crossover Op-Amp

The latest member of the range, the OPA369, provides zero-crossover operation with exceptionally low power consumption. With a quiescent current of just 1µA, SC70 package and operation down to 1.8V, the device simplifies high-performance designs in battery-powered portable products.

The OPA369 achieves rail-to-rail performance without input crossover, even at low voltages, via the use of a unique single-input-stage architecture. This delivers outstanding offset voltage of 750µV over the entire rail-to-rail input range and a Common-Mode Rejection Ratio (CMRR) of 100dB minimum, maximising the useable input dynamic range for low supply-voltage applications.

Devices are available to support a wide range of mains or battery-powered applications, including medical devices and instrumentation, sensor signal conditioning and consumer products.

The OPA333 single-channel and OPA2333 dual-channel devices provide an even better offset voltage specification of just 10µV maximum, while still requiring a quiescent current as low as 17µA.

With a low supply-current of 1µA, input bias current of 10pA and gain-bandwidth product of 70kHz, the OPA349 is particularly suitable for use in battery-powered applications where supply voltage may fall below the specified level.

Providing very low voltage operation, the OPA363 and OPA364 are designed to accommodate single supplies of 1.8V to 5.5V. The OPA363 includes a shutdown mode that draws current of less than 1µA/channel.

Key features of the OPA365 include 2.2V operation, gain-bandwidth product of 50MHz and 4.5nV/√Hz noise performance.

The OPA379 family of devices includes a quad version for multi-channel applications.

Commonly available in single- and dual-channel versions, the devices are specified for use in the -40°C to +125°C temperature range. They are available in a variety of microsize packages including SC70-5, SOT23-5, SO-8, MSOP and DFN.

Features
  • Range of precision op-amp products
  • Low noise
  • Rail-to-rail I/O
  • Zero crossover versions
  • Zero drift versions
  • Low offset
  • High CMRR
  • Low quiescent current
  • Operation down to 1.8V
  • SC70, SOT23, MSOP, SO-8, and DFN packages

Applications
  • Portable and mains-powered precision equipment
  • Medical devices
    • Glucose meters
    • Oxygen metering
  • Instrumentation
    • Gas detection/monitoring
    • Handheld test equipment
  • Sensor signal conditioning
  • Portable consumer products

For further information, including the Texas Instruments Amplifier and Dataconverter Selection Guide and the Datasheets of products featured, please click here.