ON Semi Releases Ultra-Low-Power Analog Voltage Reference ICs

ON Semiconductor announced its new CAT8900 family of high-accuracy voltage reference integrated circuits (ICs). According to the company, the CAT8900 family combines very high initial accuracy, low supply current consumption and a stable temperature coefficient, to enable precision performance in test equipment and portable, battery-powered data acquisition systems.

The CAT8900 ICs provide what is described as a highly accurate voltage reference, with initial accuracy as high as 0.02% and a stable, 20 parts per million per degrees Celsius (ppm/°C) temperature coefficient, while maintaining a low maximum supply current consumption of 800nA. The low current consumption allows the CAT8900 voltage references to remain powered on continuously, with minimal battery load. The low power consumption, combined with the very high initial accuracy and temperature stability of the devices, makes them well suited replacements for power-hungry, higher cost bandgap references in a wide range of portable applications. These include handheld medical devices, high resolution A/D (analog-to-digital) and D/A (digital-to-analog) converters, and precision regulator systems.

The CAT8900 family offers nine voltage reference choices: 1.024, 1.200, 1.250, 1.800, 2.048, 2.500V, 2.600V, 3.000V and 3.300V. Custom voltages are available on request. Each reference is available in four accuracy grades: ±0.5mV, ±1.0mV, ±2.5mV and ±5.0mV. The devices source or sink up to 10mA of load current with as little as 50mV of dropout. In most applications they do not require an output bypass capacitor.

The CAT8900 precision voltage references come in a Pb-free, RoHS-compliant, 3-lead SOT-23 package. The per unit prices for quantities of 10,000 are: $0.60 USD for ±5.0mV initial accuracy versions; $0.92 for ±2.5mV initial accuracy versions; $1.55 for ±1.0mV initial accuracy versions ; and $2.44 for ±0.5mV initial accuracy versions. Samples are available now. Projected lead-time for production quantities is currently eight to 12 weeks after receipt of order (ARO).