The MAX44251 20V low-noise dual op amp promises to extend maintenance system uptime and maximize sensor performance. Proprietary auto-zero technology enables continuous self-calibration that ensures system accuracy over time, temperature, and power-supply variations. Specs include less than 6 µV initial offset over a 2.7V to 20V operating range, a current consumption of 1.15 mA per channel offers, 10-MHz gain bandwidth, and a noise figure of 5.9nV/√Hz. Available in eight-pin SOT23 and µMAX® packages, pricing starts at $1.48 each/1000. MAXIM INTEGRATED PRODUCTS, Sunnyvale, CA. (800) 998-8800.