Product category:
Analogue and Mixed Signal ICs
News Release from: Catalyst Semiconductor | Subject: CAT5111 and CAT5113
Edited by the Electronicstalk Editorial
Team on 07 February 2002
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.
Catalyst Semiconductor has added two new digitally programmable potentiometer (DPP) ICs to its AE2 (analogue EEPROM) mixed-signal product line The new CAT5111 and CAT5113 have 100 taps, or steps of resolution, and are controlled over a simple three-wire, digital up/down increment interface
This article was originally published on Electronicstalk on 11 Feb 2002 at 8.00am (UK)
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The CAT5111 features a buffered wiper and can be used as a three-terminal voltage divider.
The non-buffered CAT5113 can be used as a two-terminal variable resistor or as a three-terminal resistive divider.
Both devices have 1% resolution and resistance value options of 10 or 100kohm.
"The new 100-tap DPPs complement our existing 32- and 256-tap products", said Gary Craig, product marketing manger for Catalyst DPP products.
"Digital adjustment, low-cost integrated circuit technology, package options and compatibility with volume manufacturing practices make DPPs the most versatile adjustment technology available.
In-system adjustment and setting capability makes DPP technology the only option in many systems.
DPP products will capture a significant portion of new designs that traditionally have relied on mechanical potentiometers.
Low-cost, reliability, digital control and manufacturing ease are the factors driving the change".
Wiper position is stored in nonvolatile memory and is not lost when device power is removed.
In addition, wiper position can be adjusted to test new system values without changing the stored wiper position.
The CAT5111 uses a buffer configured operational amplifier to minimize errors if there is potential wiper loading.
Operating voltage range is 2.5 to 6.0V.
Supply current is a low 100uA maximum.
The CAT5111 and CAT5113 have the same pinout.
The CAT5111 and CAT5113 are offered in 8-lead DIP and 8-lead surface mount SOIC, MSOP and TSSOP packages.
Both commercial, 0 to 70, and industrial, -40 to +85C, operating temperature range devices are available.
Samples of the CAT5111 and CAT5113 are available now, with volume production scheduled for the first quarter of 2002.
The CAT5111 is priced at $0.75 each in 1000-lot units and the CAT5113 is priced at $0.70 each in 1000-lot units.
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