Description
The TSU112IY operational amplifier (op-amp) offers an ultra low-power consumption per channel of 920 nA typical and 1.3 µA maximum when supplied by 3.3 V. Combined with a supply voltage range of 1.5 V to 5.5 V, these features allow the TSU112IY to be efficiently supplied by a coin type Lithium battery or a regulated voltage in low-power applications. The high accuracy of 150 µV max. and 9 kHz gain bandwidth make the TSU112IY ideal for sensor signal conditioning, battery management system, on-board (OBC) and wireless chargers. Product status link TSU112IY Related products See TSU101, TSU102 and TSU104 For further power savings See TSZ121, TSZ122 and TSZ124 For increased accuracy Automotive grade, nanopower (920 nA), high accuracy (150 μV) 5 V CMOS operational amplifier TSU112IY Datasheet DS13616 - Rev 1 - March 2021 For further information contact your local STMicroelectronics sales office.

Features
■ AEC-Q101 qualified
■ Sub-micro ampere current consumption: Icc = 920 nA typ. at 25 °C
■ Low offset voltage: 150 µV max. at 25 °C, 400 µV max. over full temperature range (-40 to 125 °C)
■ Low noise over 0.1 to 10 Hz bandwidth: 4.6 µVpp
■ Low supply voltage: 1.5 V to 5.5 V
■ Rail-to-rail input and output
■ Gain bandwidth product: 9 kHz typ.
■ Low input bias current: 10 pA max. at 25 °C
■ High tolerance to ESD: 4 kV HBM
■ More than 25 years of typical equivalent lifetime supplied by a 220 mA.h CR2032 coin type Lithium battery
■ High accuracy without calibration
■ Tolerance to power supply transient drops

Applications
■ Battery management system: ultra-low power op-amp detects when battery is charging/discharging and wakes up CPU
■ On-board chargers
■ Signal conditioning for energy harvesting
■ Wireless chargers