Analysis
ZMDI ZSSC3122 capacitive sensor signal conditioner benefits battery-powered applications, MEMS, industrial and harsh environments
ZMD AG has expanded its family of capacitive sensor signal conditioners (SSCs) with the addition of the wide-dynamic-range ZSSC3122 cLite device. Thanks to new design technology, the chip delivers 14-bit resolution and 0.25% full-scale-output accuracy. A built-in sleep mode lowers current consumption to <1uA for temperatures up to 85°C, making the ZSSC3122 ideal in low-power battery applications, as well as industrial and rugged environments. MEMS sensing elements, such as pressure sensors for hydraulic control systems, humidity sensors and liquid level gauges also benefit from these features.
Capacitive sensors are often favored for their small size and lower power consumption over resistive bridge sensors. The ZSSC3122 supports this view with an operating current as low as 60uA over the entire voltage range of 1.8V to 5.5V.
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