Analogue, Mixed Signal, LSI


Programmable temperature compensation IC

25 July 2007 Analogue, Mixed Signal, LSI

Intersil has introduced the ISL21400 Digitally Programmable Tempco Voltage Reference as part of the newly formed pinPOINT family of precision analog products.

This product allows users to digitally set the temperature slope and DC voltage of its output to accurately compensate for temperature drifts elsewhere in the system.

The performance of most analog circuits changes with temperature. This requires components to minimise the impact of such temperature drift in higher performance systems. With this device, an engineer can now simply generate a compensation voltage that can effectively cancel out the native drift of the target system in the analog domain, allowing the use of lower cost components.

The other common approach to dealing with analog temperature drift is to cancel it out in the digital domain using a microprocessor. In this case, depending on the magnitude of the temperature drift problem, designers are sometimes forced to use higher resolution A/D converters than they would otherwise require. Intersil's ISL21400 allows the problem of temperature drift to be addressed cost-effectively in the analog domain without losing the simplicity of digital programming.

The ISL21400 offers a 1,2 V reference with absolute reference accuracy of +2% and gives the user 8-bit control of slope and output voltage level plus three different gain settings that are applied at the output buffer of the device. All settings are stored in on-chip EEPROM memory, avoiding the need for reprogramming the part each time the system is powered down.

Packaged in a cost effective SO-8 form-factor and drawing just 250 μA of current over the industrial temperature range, the part is suitable for a broad range of different applications where precision over temperature is important - primarily in the industrial and communications markets.

For more information contact Andrew Athanasiou, Arrow Altech Distribution, +27 (0)21 555 1884, [email protected]





Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Dual-range IMU with edge processing
EBV Electrolink Analogue, Mixed Signal, LSI
ST’s innovative LSM6DSV80X combines two accelerometer structures for 16 g and 80 g full-scale sensing, a gyroscope up 4000 dps, and embedded intelligence in a single component.

Read more...
High-reliability isolation amplifiers
EBV Electrolink Analogue, Mixed Signal, LSI
The VIA series of isolation amplifiers from Vishay are designed to deliver exceptional thermal stability and precise measurement capabilities.

Read more...
Mibbo QT2C Series signal isolators
Conical Technologies Analogue, Mixed Signal, LSI
The Mibbo QT2C Series isolators support a rich combination of input and output signals, working with either current loops or voltage levels.

Read more...
IMU with dual-sensing capability
EBV Electrolink Analogue, Mixed Signal, LSI
ST’s 6-axis inertial measurement unit integrates a dual accelerometer up to 320g and embedded AI for activity tracking and high-impact sensing.

Read more...
Plural data converter series
Analogue, Mixed Signal, LSI
Silanna Semiconductor has announced the launch of Plural, a new generation of data converters for customers eager to find a more available, affordable, high-performance alternative to existing brands.

Read more...
Precision JFET op-amp
Altron Arrow Analogue, Mixed Signal, LSI
The specifications of the ADA4620 make it optimal as a front-end amplifier in a data-acquisition system, or for a TIA circuit with high input impedance.

Read more...
A new era in modular I/O solutions
Rugged Interconnect Technologies Analogue, Mixed Signal, LSI
Aerospace and defence system designers are demanding scalable and high-performance I/O solutions and while traditional mezzanine standards have proven reliable, they often fall short of meeting modern bandwidth, size, and flexibility requirements.

Read more...
High voltage instrument op-amp
iCorp Technologies Analogue, Mixed Signal, LSI
The SGM621B is a high accuracy, high voltage instrumentation amplifier, which is designed to set any gain from 1 to 10 000 with one external resistor.

Read more...
High-speed SAR ADC simplifies design
Altron Arrow Analogue, Mixed Signal, LSI
The ADI AD4080 simplifies data converter integration by integrating a low drift reference buffer, low dropout regulators and a 16K result data FIFO buffer.

Read more...
2-wire quad voltage output DAC
Altron Arrow Analogue, Mixed Signal, LSI
The DAC has a 2-wire serial interface that operates at clock rates up to 400 kHz, and this interface is SMBus compatible, allowing multiple devices to be placed on the same bus.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved