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Multisensor interface IC uses 30?W of power

Posted: 05 Feb 2008 ?? ?Print Version ?Bookmark and Share

Keywords:multisensor interface chip? programmable gain amplifier? DSP?

ZMD AG and ZMD America launched the first member of its MULti-Sensor IC (MUSiC) semiconductor familythe ZMD21013, which is a low-power multichannel device aimed at MCU-based mobile electronic products.

Applications include consumer, medical and industrial products requiring multiple sensors.

The ZMD21013 integrates an analog front-end, including a programmable gain amplifier, a 16bit delta-sigma ADC and a power-saving analog sampling architecture. Based on its highly integrated design, the ZMD21013 can reduce the average overall BOMs and power consumption of an entire sensor-based system, according to ZMD. As a result, it consumes 25-30?W of power on average during normal operations and less than 1?W in idle mode.

Beyond the common signal measurement mode, the ZMD21013 supports an additional temperature measurement mode and an auto-zero mode, which allows monitoring of long-term stability drifts and offsets for compensation and correction purposes.

The ZMD21013 ASSP contains an on-chip clock generator and a 16x8bit EEPROM to store non-volatile configuration data, calibration coefficients, and an optional user-programmable identification. An SPI-compatible serial interface connects the ZMD21013 to the customer's specific external MCU or DSP. The ZMD21013 can be ordered for consumer (0C to 70C) as well as for industrial temperature ranges (-25C to 85C).

The devices are available in TSSOP20 (4.4mm x 4.6mm) packages.

Pricing starts at $2.10 in volumes of 1,000 devices or more. Sampling of devices will start in Q1 with volume quantities expected in Q2 08.

- Ismini Scouras

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