TSU111 - Nanopower (900 nA) high accuracy (150 µV) 5V CMOS Op Amp - STMicroelectronics

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Product overview

Description

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.

All 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
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Featured Videos

Wireless Home CO detector

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With today’s technologies, users can also receive an alert on their phone or a wearable device. ST’s S2-LP, sub-1GHz RF transceiver and the TSU111 operational amplifiers together with STM32 enable such enhanced alarms.

Watch the video (06:12)

Getting started with STM32 Nucleo glas sensing evaluation pack

Getting started with STM32 Nucleo glas sensing evaluation pack

The P-NUCLEO-IKA02A1 pack is a ready to use CO detector including an STM32 Nucleo expansion board based on two TSU111 Op Amps and a Figaro TGS5141 CO sensor

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	Resource title	Version	Latest update

SPICE models (1)

	Resource title	Version	Latest update
ZIP	TSU111 PSpice model		20 Feb 2017	20 Feb 2017 TSU111 PSpice model

SIMetrix models (1)

	Resource title	Version	Latest update
ZIP	TSU111 SIMetrix examples schematics	2023.07	12 Feb 2024	12 Feb 2024 TSU111 SIMetrix examples schematics 2023.07

Quality and Reliability

Part Number	Marketing Status	Package	Grade	RoHS Compliance Grade	Material Declaration**
TSU111ICT	Active	SC70-5	Industrial	Ecopack3	PDF XML
TSU111IQ1T	Active	QFN-6L P 0.4 mm	Industrial	Ecopack3	PDF XML

TSU111ICT

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SC70-5

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TSU111IQ1T

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QFN-6L P 0.4 mm

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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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