Skip to main content
Log in
STMicroelectronics TSU114IQ4T — Analog & Data Acquisition

STMicroelectronics TSU114IQ4T CMOS Op-Amp, 11.5 kHz

MPNTSU114IQ4T
End of Life

STMicroelectronics TSU114IQ4T, quad CMOS rail-to-rail op-amp, 11.5 kHz GBP, 0.0027 V/µs slew rate, 950 nA per channel supply, 1.5 V to 5.5 V supply, 16-QFN (3x3) package, -40°C to 85°C.

$3.85Ref. price · indicative, final on quote
STMicroelectronics TSU114IQ4T datasheet (PDF)
Packaging16-VFQFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TSU114IQ4T specifications
ParameterValue
Output typeRail-to-Rail
MountingSurface Mount
Amplifier typeCMOS
Voltage - input offset150 µV
Voltage - supply span5.5 V
Current - supply950nA (x4 Channels)
Current - input bias1 pA
Current - output (Channel)45 mA
Operating temperature-40°C ~ 85°C
Gain bandwidth product11.5 kHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate0.0027V/µs
Case16-VFQFN Exposed Pad
Number of circuits4

Product details

Quad CMOS op-amp for micropower sensor conditioning

The STMicroelectronics TSU114IQ4T is a quad CMOS operational amplifier designed for applications where supply current is the critical constraint. Each of the four channels draws 950 nA typical, making the part suitable for battery-powered or energy-harvesting sensor interfaces, portable medical monitors, and remote IoT nodes that must run for years on a coin cell. The 16-QFN (3x3 mm) package saves board area in space-constrained designs.

The listed package options — Tape & Reel and Cut Tape — cover both volume production and prototype quantities.

Frequently asked questions

What are the alternatives to TSU114IQ4T?

For a wider bandwidth and extended temperature range, the TS274IPT (3.5 MHz, -40°C to 125°C) is a quad CMOS alternative, but it draws roughly 1 mA per channel — not a micropower drop-in. For a dual-channel option with similar low-power behavior, the TS942AIDT (10 kHz GBP, 0.0045 V/µs slew rate) is a close functional match in a smaller package.

Does TSU114IQ4T have rail-to-rail output?

Yes, the output type is rail-to-rail, allowing the output to swing within millivolts of the supply rails. This maximizes dynamic range in low-voltage single-supply designs.

What is the typical application of TSU114IQ4T?

Typical applications include battery-powered sensor interfaces (temperature, pressure, strain, electrochemical), portable medical devices, energy-harvesting IoT nodes, and any signal chain where supply current must stay under 1 µA per channel.