Wednesday, February 8, 2017

TI introduces the industry's first zero-drift, zero-crossing operational amplifiers to achieve true high accuracy

Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced its first op amp with zero-drift and zero-crossing technology to set the standard for precision amplifiers. The OPA388 op amp maintains high accuracy over the entire input range and is suitable for a wide range of industrial applications, including test and measurement, medical and safety equipment, and high-resolution data acquisition systems.
The unique architecture of the OPA388 enables industry-leading combinations of ultra-high input linearity and accuracy. TI's zero-drift technology eliminates temperature drift and flicker noise for maximum dc accuracy and dynamic error correction, and its zero-cross topology eliminates offset errors caused by common-mode limits for linear output and true rail-to-rail Input operation. xc17s05pd8i
Key Features and Benefits of the OPA388 Operational Amplifier:
True True Accuracy with Ultra-High Input Linearity: The device's zero-cross topology eliminates the input offset transitions of traditional complementary metal-oxide-semiconductor (CMOS) operational amplifiers to ensure maximum linearity over the entire common-mode input range Degree and minimum distortion.
• Provides high DC accuracy: TI's zero drift technology provides a maximum offset voltage as low as 5μV, typical offset voltage drift of 0.005μV / ° C and a maximum input bias current of 700 pA, and an industrial temperature range of -40 ° C To 125 ° C. Without the need for costly overheating calibration, while increasing the DC accuracy.
Support for wide bandwidth operation: With a 10 MHz gain bandwidth product (GBW), the OPA388 enables high-gain configurations with access to a variety of signal types and frequencies. The OPA388 supports these devices from precision weighing instruments to heart rate monitors.
• High performance and low distortion: -132dBc of ultra-low total harmonic distortion and 7nV / √Hz voltage noise contribute to high-resolution signal chain, suitable for specialized applications, such as programmable logic controllers, precision field transmission And motion control equipment. xc4020xl-3pq160c
Reduced complexity and cost: Zero-drift and zero-crossing techniques reduce the complexity of the signal chain and the number of external components, enabling designers to minimize board space and bill-of-materials (BOM) costs.
Start the design tools and support immediately
TI provides designers of the OPA388 with a range of support tools, including a reference design that demonstrates how to eliminate cross-nonlinearities in digital-to-analog converters using precision op amps. The reference design uses the DAC8830 precision data converter and the REF5050 voltage reference to create an accurate DC calibration system for high-precision applications in wireless infrastructure, test and measurement.

1 comment:

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