TSM103IDT

Overview

The TSM103IDT is a monolithic integrated circuit from STMicroelectronics featuring a dual operational amplifier architecture with an integrated fixed voltage reference. One amplifier operates independently, while the second has its non-inverting input connected to a 2.5V reference output. The device supports a wide power supply range of 3V to 32V or ±1.5V to ±16V. It offers a typical unity-gain bandwidth of 0.9MHz and a low supply current of 350µA per op-amp at 5V. The input common-mode voltage range includes ground, and the output swing extends from 0V to VCC minus 1.5V.

Feature Summary

• Integrates one independent operational amplifier and one amplifier tied to a fixed 2.5V voltage reference for simplified design.
• Provides high precision voltage reference with specified tolerance options and low output impedance.
• Features wide single or dual supply voltage operation suitable for diverse power environments.
• Includes large output voltage swing capability extending close to the negative supply rail.

Applications

• Power supply management circuits
• Data acquisition systems
• Sensor signal conditioning

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and temperature rating. Ensure the ordering information matches the required tape and reel specifications if automated assembly is planned. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm current production status and availability constraints before finalizing procurement.

Selection Notes

Select this component when a compact solution combining amplification and a stable reference voltage is required. The integrated reference reduces external component count compared to discrete solutions. Consider the 0.9MHz bandwidth and 350µA quiescent current for applications balancing speed and power efficiency. Verify that the 2.5V reference meets the system's accuracy requirements.

Part Context

This device belongs to the TSM103 family of specialized operational amplifiers designed by STMicroelectronics. It is categorized under linear amplifiers and special-purpose amplifiers. The component is typically housed in surface-mount packages such as SOIC, facilitating integration into modern printed circuit board designs for industrial and consumer electronics.

FAQ

What is the function of the second operational amplifier in the TSM103IDT?

The second operational amplifier has its non-inverting input wired directly to the internal 2.5V fixed voltage reference, allowing it to buffer or utilize this precise reference voltage.

Does the TSM103IDT support single-supply operation?

Yes, the device supports a wide power supply range from 3V to 32V, which allows for flexible single-supply configurations.