HIGHLY ACCURATE SUPERVISORY CIRCUITS PROVIDE GREATER DESIGN FLEXIBILITY AND IMPROVED SYSTEM POWER SUPPLY RELIABILITY

- Analog Devices’ expanded supervisory circuit portfolio features ICs with up to two times the accuracy over temperature of competing devices.

Norwood, MA (07/07/2009) - Analog Devices, Inc. (ADI), a global leader in high-performance semiconductors for signal-processing applications, today expanded its portfolio of multi-voltage supervisory ICs with new circuits for monitoring negative-voltage and over- and under-voltage conditions. The ADM2914 and the ADM12914 voltage supervisors and the ADM6339 microprocessor supervisor ICs enhance overall system reliability by helping ensure voltage levels remain within specified levels. The new circuits provide up to twice the accuracy of other devices designed to monitor voltage supply rails in communications, industrial and instrumentation applications.

The ADM12914 detects over-voltage and under-voltage (OV/UV) conditions with 1.5 times the accuracy (±0.8 percent over temperature) of competing supervisory circuits. This translates to improved system operation as the new supervisory IC prevents power supplies in medical ultrasound, telecommunications equipment and other applications from slipping out of range. This is especially important in today’s power supply systems, which often operate at below 1 V and where an over-voltage condition could cause catastrophic system failure. The ADM2914/ADM12914 also includes an input-supply shunt regulator that enables the device to be run off of higher-voltage supplies, including 12-V operation in communications infrastructure equipment and lithium-ion batteries used in hybrid vehicles.

The ADM6339 quad microprocessor voltage supervisory circuit provides two times the accuracy (±0.8 percent over temperature) of other devices in its class and monitors up to three positive and one negative voltage supplies. The ADM6339 incorporates internally pre-trimmed under-voltage threshold options for monitoring 1.8-V, 2.5-V, 3-V, 3.3-V, 5-V, and -5-V supply voltages and is available with one to three adjustable threshold options to extend design flexibility.

As part of a complete signal chain, the ADM12914 and ADM6339 supervisory circuits are compatible with ADI’s point-of-load regulators, including the ADP1740, ADP1741 and ADP2102, ADP2105, ADP2106, ADP2107, ADP2108 family.

Product
Samples
Availability
Accuracy
Temperature Range
Price Each per 1000
Packaging
ADM12914
Now
July 2009
±0.8%
–40°C to +125°C
$4.99
16-lead QSOP
ADM2914
Now
Now
±1.5%
–40°C to +125°C
$3.99
16-lead QSOP
ADM6339
Now
Now
±0.8%
–40°C to +85°C
$1.79
6-lead SOT-23

ADI in Power Management
Analog Devices brings world-class signal-processing prowess to a portfolio of innovative power-management ICs that complement high-performance signal-processing functions in a wide range of portable and fixed-power applications in consumer electronics, medical equipment, industrial and instrumentation, and communications infrastructure. By supporting signal-chain design requirements, such as dynamic range, transient performance, and reliability, ADI helps customers solve complex power challenges easily and quickly, differentiate their products, and get to market faster. Learn more about ADI's power-management ICs at http://www.analog.com/power.

About Analog Devices

Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices is included in the S&P 500 Index.

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Editor's Contact Information:

Howard Wisniowski
781/937-1517

howard.wisniowski@analog.com

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