Product category:
Analogue and Mixed Signal ICs
News Release from: Texas Instruments (April 2001-March 2006) | Subject: XTR300
Edited by the Electronicstalk Editorial
Team on 28 March 2006
Driver masters analogue signalling
A digitally controlled current/voltage output driver is designed for industrial applications such as industrial PLCs and process control equipment.
Texas Instruments has developed a digitally controlled current/voltage output driver for industrial applications such as industrial PLCs and process control equipment The XTR300 delivers outputs up to +/-17V and +/-24mA, handling virtually any standard analogue signalling requirements
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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Digital selection of voltage or current output eliminates bulky discrete circuitry and awkward pin-strapped configuration schemes.
Internal fault detection circuitry in the XTR300 provides digital indication of line/load faults, including shorts or opens in cable or remotely located loads.
To sense output voltage, the device includes an instrumentation amplifier which can be connected for four-wire load connections to accurately control the voltage at remotely located loads.
The instrumentation amplifier can also be used as a general purpose analogue input.
In addition, the XTR300 can be configured for three-wire industrial sensor applications.
It requires no external output transistors.
The 5 x 5mm QFN package allows power to be dissipated through a bottom-side power pad with low thermal resistance.
The XTR300 operates from power supplies up to +/-20V and is specified over the -40 to +85C industrial temperature range.
Chip fabrication is on a proprietary BiCMOS process.
The XTR300 is available now in a 5 x 5mm, QFN-20 package from TI and its authorised distributors.
The device is priced at $2.45 in 1000 piece quantities (suggested resale pricing).
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