STMicroelectronics TSU111
TSU111 - Nanopower (900 nA) high accuracy (150 µV) 5V CMOS Op Amp
The TSU111, TSU112 and the TSU114 operational amplifiers (op-amp) offer an ultra low-power consumption per channel of 900 nA typical and 1.2 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 TSU11x 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 11.5 kHz gain bandwidth make the TSU11x ideal for sensor signal conditioning, battery supplied, and portable applications.
Features
- Sub-micro ampere current consumption: Icc = 900 nA typ. at 25 °C
- Low offset voltage: 150 µV max. at 25 °C, 235 µV max. over full temperature range (-40 to 85 °C)
- Low noise over 0.1 to 10 Hz bandwidth: 3.6 µVpp
- Low supply voltage: 1.5 V to 5.5 V
- Rail-to-rail input and output
- Gain bandwidth product: 11.5 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
P-NUCLEO-IKA02A1 - STM32 Nucleo pack: electrochemical toxic gas sensor expansion board with CO sensor
The P-NUCLEO-IKA02A1 evaluation pack provides a reference design for various electrochemical sensors.
The STM32 Nucleo gas expansion board interfaces electrochemical sensors with the MCU on the STM32 Nucleo development board. Two TSU111 operational amplifiers provide signal conditioning; they are ideal for electrochemical sensing thanks to their high precision and low power consumption. The expansion board includes an ultra-low current precision analog temperature sensor STLM20 used for compensation of gas readings.
STM32 Nucleo boards provide an affordable and flexible way for users to experiment with new ideas and build prototypes with any STM32 microcontroller line. The NUCLEO-L053R8 is designed for low power applications.
The design and componentry are optimised for battery operation and maximum battery life time.
Features
- STM32 Nucleo gas expansion board
- compatible with most electrochemical sensors
- four different footprints for sensors (PCD13,5, PCD17, Mini and TGS5141)
- two-, three- and four-electrode sensors
- signal conditioning with TSU111
- STLM20 temperature sensor
- changeable gain
- NUCLEO-L053R8
- Ultra-low-power ARM® Cortex®-M0+ MCU (32 MHz max.) with 64 Kbytes Flash and 8 Kbytes of SRAM
- Carbon monoxide sensor
- Figaro TGS5141
- coin-cell sensor
- expected life time > 10 yrs
- can pass 5000 ppm EN50291
- Low power design for long battery life
- RoHS compliant
silica content library/npi/2024/stmicroelectronics-tsu111
STMicroelectronics TSU111 Nanopower high accuracy 5V CMOS Op-Amp | Avnet Silica
