Micropower CMOS temperature sensor with digital output

Micropower Low-Voltage Analog Filter in a Digital CMOS Process

Techniques for implementing micropower analog filters using digital CMOS process technology are described. PMOS devices operating in accumulation are used for the integration capacitors, and the voltage swing across them is limited by employing current-mode operation using the log domain approach. The latter is implemented using enhanced lateral bipolar transistors. A second-order low-pass filt...

All-Digital Time-Domain CMOS Smart Temperature Sensor with On-Chip Linearity Enhancement

This paper proposes the first all-digital on-chip linearity enhancement technique for improving the accuracy of the time-domain complementary metal-oxide semiconductor (CMOS) smart temperature sensor. To facilitate on-chip application and intellectual property reuse, an all-digital time-domain smart temperature sensor was implemented using 90 nm Field Programmable Gate Arrays (FPGAs). Although ...

Ring Oscillator Based CMOS Temperature Sensor Design

This paper presents the ring oscillator based temperature sensor. The method is highly area efficient, simple and easy for IC implementation as compared to traditional temperature sensors. The proposed temperature sensor was fabricated using 0.35 μm technology, which occupies extremely small silicon area. It exploits the frequency of the ring oscillator that is proportional to temperature, whic...

A micropower analog hearing aid on low voltage CMOS digital process

A two-chip analog micropower hearing aid circuit is developed which is based on a low voltage three micron CMOS process. The novel features of the circuit are the use of adaptive biasing of MOS Translinear Loop ( MT15 ) circuit and an innovative application of an adapiive technique in reducing the value of a degeneradng linearising resistor in the input differential stage of ,the AGC block. The...

A VDD independent temperature sensor circuit with scaled CMOS process