This paper presents a 1 MHz PVT compensated dual phase relaxation Oscillator. The oscillator core employs a current controlled voltage bias replica circuit to limit the charging of capacitor. Furthermore, the current starved schmitt trigger circuit is employed in oscillator in place of conventional power consuming comparators. They also provide stable switching threshold voltage across temperature variations. The oscillator is designed in 90 nm STMicroelectronics BCD technology and validated to work for supply variations of 1.0–1.32 V and temperature range from − 40 to 175 °C to suitable for automotive, industrial as well as consumer applications.

本文介绍了一种1 MHz PVT补偿的双相弛豫振荡器。振荡器内核采用电流控制的电压偏置复制电路来限制电容器的充电。此外，在振荡器中采用了电流不足的施密特触发器电路来代替传统的功耗比较器。它们还提供跨温度变化的稳定开关阈值电压。该振荡器采用90nm STMicroelectronics BCD技术设计，经过验证可在1.0–1.32 V的电源变化范围内以及−40至175°C的温度范围内工作，适用于汽车，工业以及消费类应用。