Current-Sense Amplifier offers low power consumption.

Press Release Summary:

Offering 1.6 to 28 V input-voltage range, Model MAX9634 current-sense amplifier features 1 µA quiescent current with ±250 µV VOS and 0.5% gain error. Specified over -40 to +85°C extended temperature range, it is designed for portable, battery-powered applications such as smartphones, digital cameras, PDAs, MP3 cameras, and notebook computers. Unit measures 1 x 1 x 0.6 mm in 4-bump UCSP(TM) package.

Original Press Release:

1mm² Current-Sense Amplifier Sets Benchmarks for Power Consumption and Accuracy

High-side CSA features ±250µV VOS and 0.5% gain error.

The MAX9634 uniquely combines an industry-low 1µA IQ with ±250µV VOS and 0.5% gain error for battery-operated devices that require precision monitoring.

SUNNYVALE, CA - Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX9634, the latest addition to its industry-leading portfolio of high-side current-sense amplifiers (CSAs). Designed for space-constrained portable applications, the 1mm² MAX9634 sets benchmarks for size, performance, and power consumption. Combined with its wide (1.6V to 28V) input-voltage range, these superior features make the MAX9634 well suited for a broad selection of battery-powered devices, including smartphones, digital cameras, PDAs, MP3 cameras, and notebook computers.

The MAX9634 is optimized for compact designs that require precision monitoring. This device consumes an industry-low 1µA of quiescent current (IQ) to conserve battery life, and it is offered in the smallest package-a tiny, 1mm x 1mm x 0.6mm, 4-bump UCSP(TM), which is 9x smaller than competing SOT23-housed devices. The small size of the MAX9634 is even more impressive when viewed in conjunction with its superior performance. The device features an ultra-low ±250µV (max) VOS and 0.5% (max) gain error. This high accuracy simplifies designs, and eliminates the need to worry about worst-case error tolerances.

The MAX9634 is fully specified over the -40°C to +85°C extended temperature range, and is available in 4-bump UCSP and 6-pin SOT23 packages. Prices start at $0.69 (1000-up, FOB USA).

Maxim Integrated Products is a publicly traded company that designs, manufactures, and sells high-performance semiconductor products. The Company was founded over 25 years ago with the mission to deliver innovative analog and mixed-signal engineering solutions that add value to its customers' products. To date, it has developed over 6300 products serving the industrial, communications, consumer, and computing markets.

Maxim reported revenue in excess of $1.6 billion for fiscal 2009. A Fortune 1000 company, Maxim is included in the Nasdaq 100, the Russell 1000, and the MSCI USA indices. For more information, go to

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