SOURCE: Intersil

February 28, 2008 18:35 ET

World's Smallest Push-Button DCPs Provide Easier, Flexible Solutions for Digital Control in Power-Conscious Designs

MILPITAS, CA--(Marketwire - February 28, 2008) - Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high-performance analog semiconductors, today announced the ISL23511 and ISL23512 low-noise, low-power, single push-button digitally controlled potentiometers in small 2mm x 1.6mm micro-TQFN packages.

In addition to an easy push-button interface, these DCPs feature a two-mode automatic increment/decrement function that allows the customer to hold the pin low until the designated position is reached. The initial hold will increment or decrement every 250ms, and then enter the second mode after one second. At that point, the wiper position will change every 50ms.

Both the ISL23511 and ISL23512 feature a rugged +125°C operating temperature rating that allows them to be designed into high-temperature environments.

The ISL23511 and ISL23512 both integrate a shutdown mode that disconnects the top of the resistor chain and moves the wiper to the lowest position, minimizing power consumption. The purpose of the shutdown is to completely disconnect the current path through the DCP but still keep the digital logic active. In addition it can serve as a quick calibration when GND level needs to be verified.

The ISL23512 is a 16-tap device that is ideal for applications that require only a limited amount of adjustment settings. The ISL23511, on the other hand, features 32 taps for designs needing higher resolution for more adjustment options.

Before July 2008, Intersil will also release the ISL22511 and ISL22512 non-volatile versions of these products in the same tiny TQFN packages. This will further expand the DCP offerings for applications that need to retain the last setting at power-up.

Pricing and Availability

The ISL23511 and ISL23512 are available now in a 10-lead micro-TQFN package in 1,000-unit quantities and are priced at $0.50 and $0.39 respectively. The ISL23511 is also available in an 8-lead SOIC package and is priced at $0.49 per unit in 1,000-unit quantities.

For more ISL23511 information:,1477,ISL23511.html For more ISL23512 information:,1477,ISL23512.html

Note to editors: To view a high-resolution downloadable photo of the ISL23511, visit Intersil's photo room at:

About Intersil's Digital Controlled Potentiometer (DCP) Products

Digitally Controlled Potentiometers -- also known as DCPs, RDACs, Variable Resistors, Voltage Dividers, Digital Pots, Digital Potentiometers or EEPOTS -- are one of Intersil's most prolific product families. The company offers the widest selection of low-to-high resolution digitally controlled potentiometers in single, dual and quad configurations. Available in both linear and non-linear tapers, these digital potentiometers replace mechanical potentiometers and trim resistors in applications where digital control allows microprocessor interfacing and extended functionality. Intersil continues to innovate in the general purpose markets with the smallest packages, highest operating temperature, and integrated digital control products for industrial, medical, display and other consumer applications. Intersil DCPs can be used anywhere an adjustment or calibration is needed.

To learn more about Intersil's broad DCP portfolio, visit

About Intersil

Intersil Corporation is a leader in the design and manufacture of high-performance analog semiconductors. The Company's products address some of the industry's fastest growing markets, such as flat panel displays, cell phones, other handheld systems, and notebooks. Intersil's product families address power management functions and analog signal processing functions. Intersil products include ICs for battery management, hot-swap and hot-plug controllers, linear regulators, power sequencers, supervisory ICs, bridge drivers, PWM controllers, switching DC/DC regulators and power MOSFET drivers; optical storage laser diode drivers; DSL line drivers; video and high-performance operational amplifiers; data converters; interface ICs; analog switches and multiplexers; crosspoint switches; voice-over-IP devices; and ICs for military, space and radiation-hardened applications. For more information about Intersil or to find out how to become a member of our winning team, visit the Company's web site and career page at

Contact Information

  • Media Contact
    Jill Shanks
    Public Relations Manager
    Intersil Corporation
    (408) 546-3340