TSU112

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.

Key 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

Resources

Technical Documentation

Product Specifications

	Description	Version	Size
	DS11846: Nanopower (900 nA), high accuracy (150 µV) 5 V CMOS operational amplifier	6.0	3 MB

Technical Notes & Articles

	Description	Version	Size
	How to Extend the Performance of a Low Voltage Precision Op Amp to a High Voltage High Side Current Sensing Application	1.0	473 KB

User Manuals

	Description	Version	Size
	UM0065: MACROMODELS USER MANUAL FOR STANDARD LINEAR PRODUCTS	1.0	120 KB

Design Notes & Tips

	Description	Version	Size
	DT0073: Optical heart rate monitoring – OHRM based on X-NUCLEO-IKA01A1 expansion board	1.0	1 MB

HW Model, CAD Libraries & SVD

	Description	Version	Size
	ST library for all op amps and comparators SPICE models	4.0	51 KB

Presentations & Training Material

Presentations

Description	Version	Size
Health and Wellness Mobility Cloud computing		1 MB
ST Analog Products for Automotive applications	11.2017	2 MB
ST offering in Wearable - Analog and Mixed Signal Portfolio	3.0	1 MB
What does precision mean for an op amp?		1 MB

Publications and Collaterals

Selection Guides

	Description	Version	Size
	ST Analog cards High-performance operational amplifiers and comparators, the best choice for longevity, robustness and performance.	1.0	818 KB

Brochures

	Description	Version	Size
	Operational amplifiers: performance, robust and advanced technology		2 MB
	Products and solutions for Smart industry	3.0	2 MB

Sample & Buy

Part Number	Package	Packing Type	Operating Temperature (°C) (min)	Operating Temperature (°C) (max)	Marketing Status	Unit Price (US$) *	Quantity	ECCN (US)	Country of Origin	More info	Order from ST	Order from Distributors
TSU112IST	MiniSO-8	Tape And Reel	-40	85	Active : Product is in volume production	0.9356	1000	EAR99	-	MORE INFO	Free Sample Add to cart	DISTRIBUTOR AVAILABILITY
TSU112IQ2T	DFN8 2x2	Tape And Reel	-40	85	Active : Product is in volume production	0.9356	1000	EAR99	-	MORE INFO	Free Sample Add to cart	DISTRIBUTOR AVAILABILITY

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors

Quality & Reliability

Part Number	Marketing Status	Package	Grade	RoHS Compliance Grade	Material Declaration**
TSU112IST	Active	MiniSO-8	Industrial	Ecopack3
TSU112IQ2T	Active	DFN8 2x2	Industrial	Ecopack3

(**) 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.