Precision Signal Chain and Voltage Regulation Components

STMicroelectronics' LDLN025 regulator and TSU111 op amp are a perfect match for creating ultra-small size, low power and high accuracy for IoT and wearables' high-performance sensor interfaces.

TSU111
STMicroelectronics' tiny 1.2 mm x 1.3 mm outline and typical current of only 900 nA, the TSU111 nano-power op amp helps cut the size and energy needs of analog circuits to the bare minimum in medical monitors, wearable electronics, gas detectors, pH sensors, infrared motion sensors, and payment tags. The TSU111’s extremely low operating current is on par with the leakage current of some low-cost capacitors and would take over 25 years to discharge a 220 mAh CR2032 cell. Hence, the op amp can be designed-in with negligible impact on overall system energy management.

LDLN025
STMicroelectronics' low-dropout (LDO) voltage regulators deliver best-in-class noise performance in relation to output current and footprint, generating less than 6.5 µV_RMS noise at 250 mA full load with an outline of just 0.63 mm x 0.63 mm. To ensure high accuracy and sensitivity, the LDLN025 is designed to supply ultra-smooth and stable voltage to precision ICs like ADCs, VCOs, or sensors. With the advantage of its small footprint, it enables space-constrained products like smartphones, smart watches, fitness monitors, medical sensors, and wireless IoT devices to support and better functions. Typical applications are noise sensitive loads such as ADC, VCO in mobile phones and tablets, and wireless LAN devices. The LDLN025 is designed to keep the quiescent current under control and at a low value also during dropout operation, extending the operating time of battery-powered devices.