The TSZ182 dual precision op amp from STMicroelectronics combines low and extremely temperature-stable input-offset voltage with the added advantages of a 3 MHz gain-bandwidth, rail-to-rail inputs and outputs, and ultra-small 2 mm × 2 mm DFN8 or Mini-SO8 package options.
Complementing ST’s popular conventional op amps, the chopper-stabilized TSZ182 enables superior precision in instruments like body-signal monitors, blood-glucose meters, industrial sensors, factory automation, and low-side current sensing.
The offset voltage of 25 µV at 25 °C enables high measurement resolution and accuracy without external trimming components, saving board space and the need for adjustments during production. Moreover, offset drift less than 100 nV/°C maintains accuracy over a wide temperature range and saves periodic auto-recalibration thereby simplifying design and enhancing convenience for end users.
Operating from a 2.2 V-5.5 V supply and providing rail-to-rail inputs and outputs – a competitive advantage over some other precision op amps – the TSZ182 maximizes utilization of available dynamic range. The gain-bandwidth of 3 MHz ensures consistent frequency response over a wide range, and the maximum operating current of just 1 mA at 5 V helps maximize runtime of battery-powered devices.
The extended operating-temperature range of –40 °C to 125 °C enables use in harsh outdoor or industrial environments. Automotive-qualified variants (TSZ182IYST) will also be available next month for precision sensor-signal conditioning in equipment ranging from simple wiper modules or climate controls to autonomous-driving systems.
The TSZ182 is in production now in the Mini-SO8 or DFN8 2 mm × 2 mm package, priced from $0.97 for orders of 1000 units.
