ST's low input bias current operational amplifiers are the perfect fit for any application where small differences in the current or voltage at the input of the op amp needs to be measured accurately. They are critical for interfacing downstream electronics with sensors in applications from photodiodes, pH meters, or other electrometer-like functions.
Applications
Product types
Our portfolio of low input bias current op amp features the 5V range (TSU, TSV, TSV7, TSZ) and the 16V range (TSX). These devices are engineered with ST's proprietary CMOS technology, enabling exceptionally low input bias current. This innovation ensures our amplifiers deliver outstanding precision, low power consumption, and high performance. Designed to operate reliably in even the most demanding environments, these amplifiers are ideal for a wide range of applications. Explore our advanced solutions that represent a significant leap in operational amplifier technology, providing engineers with versatile and efficient tools for their electronic design needs.
Benefits
- The low input bias current performance of these amplifiers makes them highly suitable for:
- Photodiode transimpedance amplification
- High impedance sensors signal conditioning
- A/D converters input buffers
- The low input bias current ensures that measurements remain accurate, avoiding inaccuracies introduced by higher input bias currents.
- This makes these amplifiers an excellent choice for precision-sensitive applications.
Featured Videos
Are you wondering how to deal with small analog signal to transfer it to the digital domain without adding any error that could compromise the information? This video helps you to understand what an operational amplifier is, and how to choose and use precision op amp effectively.
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High bandwidth Chopper Op Amps for automotive and industrial applications
Featuring very high-accuracy and stability (VIO ≤ 25 µV at 25 °C), our TSZ18 series of 5 V zero-drift op amps are ideal for high-accuracy, high-bandwidth sensor interfaces including body-signal monitors, blood-glucose meters, industrial sensors, factory automation, and low-side current sensing. Available in single-channel TSZ181 (1.2 x 1.3 mm DFN6 package) and dual-channel TSZ182 (2 x 2 mm DFN8 package) versions.
With an extended operating range of –40 to +150°C, TSZ181H and TSZ182H are ideal for harsh automotive environments.
Both TSZ181H1 and TSZ182H1 operate over an extended range of -40 to +175°C and feature an ultra-low input bias current, making the devices ideal for high-accuracy high-bandwidth sensor interfaces for automotive environment.
TSV7 series: excellent precision (200 µV), low-power (10 µA or 60 µA)
These characteristics make the TSV7 series ideal for sensor interfaces and active filtering for battery-powered applications in the wearable, portable consumer, medical and industrial segments.
TSB951 and TSB952: high-speed dual operational amplifiers
The TSB951 and TSB952 are high bandwidth (52 MHz), rail-to-rail output, 36 V operational amplifiers designed to meet the demanding requirements of power supplies, automotive and industrial applications.
Available in wettable flank packages, the devices feature high-speed performance, low power consumption, and extended supply voltage operating range.
High-bandwidth, low-offset rail-to-rail op amps for Industrial and Automotive applications
Our TSV791, TSV792, and TSV794 operational amplifiers offer a high gain-bandwidth product (GBW) of 50 MHz combined with excellent accuracy, which is provided by a maximum input voltage of 200 µV. This ensures high-accuracy when amplifying small-amplitude input signals.
The TSV791 (single), TSV792 (dual), TSV794 (quad) are also available in a SOT23-5 and Mini SO-8 package and can operate from 2.2 to 5.5 V in single supply. Fully specified on a 22 pF load and able to handle an output capacitor up to 1 nF, this op amps can also be used as an A/D converter input buffer.
Automotive grade versions are available.
