Product category:
Analogue and Mixed Signal ICs
News Release from: Catalyst Semiconductor | Subject: CAT5123, CAT5124, CAT5125, CAT5127 and CAT5129
Edited by the Electronicstalk Editorial
Team on 20 December 2006
Programmable potentiometers have 32 taps
Catalyst Semiconductor has added five new 32-tap devices to its extensive family of over 30 digitally programmable potentiometers.
Catalyst Semiconductor has added five new 32-tap devices to its extensive family of over 30 digitally programmable potentiometers The CAT5123, CAT5124 and CAT5125 are volatile devices, whereas the CAT5127 and CAT5129 offer nonvolatile wiper storage
This article was originally published on Electronicstalk on 7 Feb 2002 at 8.00am (UK)
Related stories
Digitally programmable potentiometers to take over
Catalyst Semiconductor has added two new digitally programmable potentiometer (DPP) ICs to its AE2 (analogue EEPROM) mixed-signal product line.
EEPROM provides more secure MPU supervision
Catalyst Semiconductor has expanded its AE2 analogue EEPROM mixed-signal product strategy with the CAT116x series of microprocessor supervisory circuits with serial 16Kbit EEPROM.
All of the new Catalyst digital potentiometers feature a user-friendly up/down control interface.
The CAT5127 is the world's smallest digital potentiometer in an 8-lead, 2 x 2.5mm, TDFN package.
The CAT5127 is also available in an 8-lead MSOP package.
Both packages are pin-for-pin replacements for Intersil's X93154.
The CAT5129 comes in a 6-lead SOT23 package and is a pin-for-pin replacement for Maxim's MAX5471 digital potentiometer.
The CAT5123, CAT5124 and CAT5125 are available in SOT23 packages and offer pin-for-pin replacements for Maxim's MAX5466, MAX5467 and MAX5468 devices.
With their small size, these new MiniPot digital potentiometers are ideal for LCD screen adjustment; automated calibration; contrast, brightness and volume control; gain adjustment; line impedance matching and mechanical potentiometer replacement in handheld and other space-constrained applications.
All five new Catalyst digital potentiometers offer low-noise, stable and reliable alternatives to DACs and mechanical potentiometers.
The CAT5127 and CAT5129 feature on-chip nonvolatile EEPROM, which allows designers to calibrate once and retain the setting in memory, even if power is lost.
The wiper position can be preset to any position on the device and, on power-up, the wiper will go to the preset position, which is stored in the on-chip EEPROM.
The CAT5123, CAT5124 and CAT5125 are volatile devices where the wiper powers on at the midscale setting.
DAC-based approaches typically require external memory and additional interconnects resulting in added board real estate and system costs.
Additionally, as the new digital potentiometers are silicon-based, they are insensitive to mechanical vibrations, shock and oxidation, making them higher reliability alternatives to mechanical potentiometers across most environmental conditions.
All these new digital potentiometers are priced at US $0.43 each in 10,000 piece quantities, except for the CAT5127 TDFN package, which is $0.53.
Samples are now available.
Projected lead-times for production quantities are currently 10 weeks ARO.
• Catalyst Semiconductor: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
