Product category:
Analogue and Mixed Signal ICs
News Release from: Texas Instruments (April 2001-March 2006) | Subject: INA159
Edited by the Electronicstalk Editorial
Team on 10 October 2005
Level-shifting amp cuts A/D conversion
costs
Texas Instruments has released a novel level-shifting difference amplifier from the company's Burr-Brown product line.
Texas Instruments has released a novel level-shifting difference amplifier from the company's Burr-Brown product line Featuring a gain of 0.2, the INA159 is designed to interface +/-10V signals to single supply analogue-to-digital convertors (ADCs), especially those with 4.096 or 5V references
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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When combined with an economical single supply ADC, the INA159 provides a high accuracy, easy-to-use, cost competitive solution compared with a +/-10V input ADC.
Targeted applications for this device include data acquisition, industrial process control and test equipment.
Prior to the introduction of the INA159, functionality was achieved using complicated and expensive precision resistor networks and a high performance op amp.
The amplifier in the INA159 is especially suited for driving up to 14bit ADCs, such as TI's ADS8324, with its 1.5MHz bandwidth and 15V/us slew rate, along with low output impedance.
A split reference connection simplifies biasing at one half supply or reference and eliminates the need for an additional op amp.
Single supply voltage range is from 2.7 to 5.5V.
The device features low offset (500uV maximum), high gain accuracy (0.024% maximum), low quiescent current (1.5mA maximum) and specification over a -40 to +125C temperature range.
The INA159 is available now from TI and its authorised distributors.
The device is available in a space-saving MSOP8 package and is priced from $1.59 in 1000 piece quantities (suggested resale pricing).
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