Product category: Analogue and Mixed Signal ICs
News Release from: Texas Instruments (April 2001-March 2006) | Subject: OPA725 and OPA726
Edited by the Electronicstalk Editorial Team on 8 October 2003
Speedy CMOS op amps
drive 16bit A/D convertors
A new family of low-noise high-speed 12V CMOS op amps are ideal for driving 16bit ADCs, as well as active filter, transimpedance amplifier, optical networking and portable audio applications
A new family of low-noise, high-speed 12V CMOS operational amplifiers are ideal for driving 16bit ADCs, as well as active filter, transimpedance amplifier, optical networking and portable audio applications. 'The OPA725 and OPA726 utilise a proprietary output stage design to achieve 20MHz bandwidth, making these the industry's fastest 12V CMOS op amps.
This article was originally published on Electronicstalk on 8 October 2003 at 8.00am (UK)
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These devices also incorporate innovative circuit design techniques to achieve the very best AC performance available in CMOS amplifiers', said Frank Haupt, Strategic Marketing Engineer of TI's high-performance amplifier products.
The OPA725 and OPA726 combine excellent AC characteristics - 20MHz bandwidth, 30V/us slew rate, 6nV/(rt)Hz noise and 0.0003% harmonic distortion - with fast 16bit settling time (600ns), low bias currents (less than 200pA) and excellent CMR (better than 94dB), PSR and AOL (better than 110dB).
As a result, these devices are well suited for buffering high-performance 16bit ADCs, such as TI's ADS8342 - a 16bit, 250Ksample/s, four-channel ADC.
The input common-mode range extends to ground for true single-supply operation.
The output swings to within 150mV of the rails, maximising dynamic range.
The shutdown versions (OPAx726) reduce the quiescent to less than 6uA and feature a logic ground pin for easy shutdown in dual supply application.
For ease of use, the OPA725 and OPA726 are fully specified and tested over the full 4 to 12V supply range.
All are specified for operation from -40 to +125C.
The OPA725 (single version) comes in a SOT23-5 or SO-8 package.
The OPA2725 (dual version) comes in an MSOP-8 or SO-8.
The OPA726 (single with shutdown) is packaged in an MSOP-8.
The OPA2726 (dual with shutdown) is available in an MSOP-10.
The OPA725 and OPA726 are priced from $0.85 in 1000-piece quantities (suggested resale price).
The OPA2725 and OPA2726 are priced from $1.35 in 1000-piece quantities (suggested resale pricing).
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