Multi-sensor interface chip consumes 30-&microW of power

Dresden, Germany—ZMD AG and ZMD America launched the first member of its MULti-Sensor IC (MUSiC) semiconductor family—the ZMD21013, which is a low-power multi-channel device aimed at microcontroller-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 16-bit delta-sigma-A/D converter and a power-saving analog sampling architecture. Based on its highly integrated design, the ZMD21013 can reduce the average overall bill of materials and power consumption of an entire sensor-based system, according to ZMD. As a result, it consumes 25-to-30 µW of power on average during normal operations and less than 1µW 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 (0°C to +70°C) as well as for industrial temperature ranges (-25°C to +85°C).

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

Pricing: Start at 1.49 EUR, or $2.10, in volumes of 1k devices or more.
Availability: Sampling in the first quarter with volume quantities expected in the second quarter of 2008.

More information: click here.


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