The WS72142S-8/TR is a low-power op amp SOP-8L RoHS device manufactured by Will Semiconductor. This device is specially designed for low-power applications, such as class-D amplifiers, battery-powered applications, and low-power instrumentation amplifiers. This device features a low input bias current, low input offset voltage, and a wide gain bandwidth product, making it ideal for high-frequency and low-distortion applications. Its wide common-mode input voltage range, from -0.3V to Vcc+0.3V, makes it compatible with a variety of power supply voltages. It features a very low voltage noise density of 125nV/ v Hz, making it suitable for low-noise designs. This device is RoHS compliant and rated for operation over a temperature range of -40°C to 85°C. It is available in an 8-pin SOP-8L package.