Product category: Analogue and Mixed Signal ICs
News Release from: Catalyst Semiconductor | Subject: DPPs without EEPROM
Edited by the Electronicstalk Editorial Team on 7 October 2003
Digital pots ditch on-chip
memory to save costs
Catalyst Semiconductor has doubled the size of its digital potentiometer IC portfolio by adding a range of DPP digitally programmable potentiometer ICs without embedded EEPROM
"By developing digital potentiometers without on-chip EEPROM we are doubling our total available market. This market segment represents the fastest growing digital potentiometer segment as engineers look for the most inexpensive, solid-state mechanical pot replacements", said Catalyst Product Marketing Manger Gary Craig.
This article was originally published on Electronicstalk on 7 October 2003 at 8.00am (UK)
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"Many systems have microcontrollers with embedded or discrete EEPROM available that can be used to recall wiper position.
In other systems, a system adjustment is made at every power-on cycle so wiper position memory is not needed.
By removing the redundant EEPROM from these systems, we have given customers a lower cost system solution.
In 10,000-piece volumes, the CAT5116 costs under $0.40.
At million piece levels we are under $0.20".
The 32-tap CAT5115 draws less than 5uW in standby mode, and will operate with a 2.5 to 5.5V power supply.
Wiper position is controlled by a three-wire up/down control interface.
At power up the wiper is set to mid-scale - or tap 15.
Resistance value options of 10, 50 and 100kohm are available.
The CAT5115 is offered in 8-lead SOIC, TSSOP, DIP and MSOP packages covering the industrial temperature range.
Environment friendly "green" packages that are both halogen- and lead-free are also offered.
Prices start at $0.38 in 10,000 piece quantities.
Devices are currently available for sampling.
Production is scheduled for Q4 2003.
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