Product category:
Analogue and Mixed Signal ICs
News Release from: Analog Devices | Subject: AD8615/16/18
Edited by the Electronicstalk Editorial
Team on 21 July 2004
Op amps optimised for comms and audio
A new family of precision op amps delivers an optimal combination of low noise and low power at the high speeds required by comms applications, and the high output drive necessary for audio uses.
A new family of precision operational amplifiers delivers an optimal combination of low noise and low power at the higher speeds required by communications applications, and the higher output drive capability necessary for audio applications The AD8615/16/18 family of single, dual, and quad operational amplifiers with rail-to-rail inputs and outputs are the latest products to use Analog Devices' patented DigiTrim digital trimming technique, eliminating the need for costly accuracy adjustments
This article was originally published on Electronicstalk on 2 Jul 2008 at 8.00am (UK)
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Featuring 24MHz bandwidth and 0.002% total harmonic distortion (THD), the new amplifier family is twice as fast and has 60% lower THD than the previous generation, easily meeting the performance requirements of optical networking and data acquisition applications.
Audio applications benefit from the family's higher output drive, which increases current capacity by up to 50% to drive heavy loads in portable equipment such as cellphone headsets.
"This new generation of operational amplifiers enables us to extend our product portfolio to meet the growing demand for higher accuracy amplifiers in communications and audio applications that benefit from higher speed and output drive capability", said Steve Sockolov, Product Line Director for Precision Amplifiers at Analog Devices.
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"By offering a complete range of precision amplifiers that are optimised to deliver maximum performance and value, we are meeting the design specifications of a wide variety of high-volume, cost-sensitive applications, from barcode scanners to GSM phones".
Fully specified to operate from single 2.7 to 5V supplies, the parts feature reduced offset voltage and offset related errors, low input voltage noise, and low input current noise.
The combination of 24MHz bandwidth, 65uV maximum offset voltage, 8nV/(rt)Hz noise, and 1pA maximum input bias current make these amplifiers suitable for a wide variety of applications, including filters, integrators, photodiode amplifiers, high-impedance sensors used in optical communications, GPS receivers, data acquisition, industrial controls and medical instrumentation.
The AD8616 and AD8618 offer 150mA output drive capability, making them ideal for audio line drivers and other applications driving heavy loads in portable and low powered instrumentation, audio amplification for portable devices, portable phone headsets, barcode scanners and multiple filters.
The ability to swing rail to rail at both the input and output increases the available dynamic range.
This, combined with low offset errors, enables designers to buffer CMOS analogue-to-digital convertors (ADCs), digital-to-analogue convertors (DACs), ASICs, and other wide-output-swing devices in single-supply systems.
The rail-to-rail output and low distortion work particularly well with the AD5541 16bit serial input, voltage-output DAC to maintain the accuracy needed in data acquisition systems and automated test equipment.
The family is specified over the extended industrial temperature range of -40 to +125C.
The single AD8615 is now sampling with production quantities available in September 2004.
The dual AD8616 and quad AD8618 are already fully released.
The AD8615 is available in space-saving 5-lead TSOT packaging, the AD8616 is available in 8-lead MSOP and narrow SOIC packaging, and the AD8618 is available in 14-lead narrow SOIC and TSSOP packaging.
Pricing for the AD8615, AD8616 and AD8618 starts at $0.75, $1.15, $2.05 per unit, respectively, in 1000-piece quantities.
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