Op amps enable precision in health monitors: Low, temperature-stable input-offset voltage is a characteristic of the TSZ182 dual precision op amp. STMicroelectronics offer it in a 2.0 x 2.0mm DFN8 or mini-So8 package.
Other features are a 3MHz gain-bandwidth, rail-to-rail inputs and outputs. It is chopper-stabilised for precision in instruments such as body-signal monitors, blood-glucose meters, industrial sensors, factory automation, and low-side current sensing.