Product category:
Analogue and Mixed Signal ICs
News Release from: Linear Technology Corp | Subject: LTC1859
Edited by the Electronicstalk Editorial
Team on 26 February 2007
Convertor is protected against
industrial faults
16bit eight-channel 100Ksample/s analogue-to-digital convertor offers software programmable input ranges that are fault-protected to +/-25V.
Linear Technology has introduced the LTC1859, a 16bit eight-channel 100Ksample/s analogue-to-digital convertor offering software programmable input ranges that are fault-protected to +/-25V The LTC1859 is easily programmed via a serial interface to accept 0-5, 0-10, +/-5 and +/-10V inputs, allowing a single-board design to accommodate several industrial applications
This article was originally published on Electronicstalk on 28 Jul 2004 at 8.00am (UK)
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All channels are fault protected to +/-25V.
An overvoltage fault up to +/-25V on one or more unused channels will not corrupt the accuracy of the selected channel.
The LTC1859's multiplexer can be configured to accept four differential inputs, eight single-ended inputs or combinations of both.
This device offers excellent DC performance of 15bit no missing codes over temperature and +/-3LSB maximum INL.
The LTC1859 provides excellent offset, full-scale gain and channel-to-channel matching.
The LTC1859 is ideal for multichannel high resolution applications such as instrumentation, data acquisition systems, and industrial process control.
The LTC1859 operates from a single 5V supply, while consuming only 40mW.
The LTC1859 also includes a 2.5V internal reference with a temperature coefficient of +/-10ppm/C, which can be externally driven if greater accuracy is required.
For power sensitive applications, the LTC1859 offers two power down modes in which the power dissipation drops to 27.5mW (nap mode) with the reference active, or 40uW (sleep mode) with the reference completely powered down.
The LTC1857 and LTC1858 are pin-compatible 12 and 14bit devices.
Each is available in SSOP-28 packages, providing a pin-compatible family for performance/cost optimisation in the end product.
The entire family is available in commercial and industrial temperature ranges.
Pricing begins at US $17.95 each for the LTC1859, $12.95 each for the LTC1858 and $8.95 each for the LTC1857 in 1000-piece quantities. Request a free brochure from Linear Technology Corp ...
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