TC75S67TU
Toshiba Low-Noise Op-Amp IC
TC75S67TU is suitable for Analog/Mixed Signal Front Ends design for Edge AI Applications.
Analog is critical for Edge AI because all real-world signals (vision, sound, vibration, temperature, bio signals) are inherently analog, and the quality of the analog front end directly determines AI accuracy. Toshiba Low-Noise Op-Amp IC, TC75S67TU, is suitable for this kind of application.
In recent years, the rapid advancement of AI technologies has driven significant expansion in data center and Edge AI markets. Therefore, the role of various sensors (motion detector, distance sensors, current sensors, etc.) built into Home Appliances, which are rapidly becoming smarter, are increasing. There are various types of sensor used in home appliances, but the detected signals output from the sensor are very weak, so in general, they are amplified by an op-amp. The op-amp used for amplification is required to have a low noise level so that its own noise does not mask the weak sensor output.
TC75S67TU is a low-noise op-amp that significantly improves equivalent input noise voltage (VNI) compared to existing products. In addition, since the input bias current is small, an offset adjusting resistor is not required.
By using TC75S67TU with high-performance sensor components, high-sensitivity and high-precision sensing performance can be realized.
This section introduces the noise characteristics of TC75S67TU and examples for sensing applications.
Features
- Low noise level, suitable for various sensing applications
- Low current consumption and low power supply voltage
- Small package UFV (2.0 mm × 2.1 mm × 0.7 mm)
- Useful application notes, reference designs, and other documents on the web save design cycle time
→ Low-Noise CMOS Operational Amplifier Ideal for Sensor Signal Amplification
(Website link of the application notes: https://toshiba.semicon-storage.com/info/docget.jsp?did=64647)
Application
Reference designs of various sensor applications
Toshiba had posted some sensor application reference designs using TC75S67TU on website. Each of the reference design is used for amplifying signals and filtering unwanted frequency components. Application circuits and board pattern diagrams are available on the web. Please use these reference design from each link destination mentioned in below applications.
- Pulse sensor: Light is irradiated on the blood flow and the reflected light is detected by the photo sensor. Reference design has two boards, one is sensor unit and the other is amplifier unit.
- Motion sensor: Pyroelectric infrared sensor element detects temperature changes using infrared rays generated by human movement.
- Current sensor: A 100 mΩ shunt resistor detects the current as a voltage. The current signal is very small so TC75S67TU amplifies it, output amplified signal to MCU, then MCU reads the voltage and converts as current to show.
- Distance sensor: The distance is calculated by measuring the time between transmitting ultrasonic wave and receiving the wave reflected by an object by ultrasonic sensor.
Video
Videoclip link:
