REFERENCE VOLTAGE DRIVER FOR LOW-VOLTAGE CMOS A m CONVERTERS
نویسندگان
چکیده
A circuit for generating reference voltages for an A D converter is presented. The circuit consisting of a bandgap reference and a driver circuit is capable of operating on sub 1-volt supply voltages. The circuit is designed using a standard 0.5 p m CMOS technology. Simulations show maximum 0.24% variation in the generated reference voltage over a temperature range from -20 "C to I00"C and a supply voltage range from 0.95 V to 1 S O V. The circuit is capable of driving a 2 pF switched capacitor load at 5 MHz clock rate while consuming 450 pW of power from a 1 .0 V supply.
منابع مشابه
Reference Voltage Driver for Low-voltage Cmos A/d Converters
A circuit for generating reference voltages for an A/D converter is presented. The circuit consisting of a bandgap reference and a driver circuit is capable of operating on sub 1-volt supply voltages. The circuit is designed using a standard 0.5 m CMOS technology. Simulations show maximum 0.24% variation in the generated reference voltage over a temperature range from -20 C to 100C and a supply...
متن کاملA High Efficiency Low-Voltage Soft Switching DC–DC Converter for Portable Applications
This paper presents a novel control method to improve the efficiency of low-voltage DC-DC converters at light loads. Pulse Width Modulation (PWM) converters have poor efficiencies at light loads, while pulse frequency modulation (PFM) control is more efficient for the same cases. Switching losses constitute a major portion of the total power loss at light loads. To decrease the switching losses...
متن کاملA High-Temperature, High-Voltage Linear Regulator in 0.8-μm BCD-on-SOI
The sale of hybrid electric vehicles (HEVs) has increased 10 fold from the year 2001 to 2008 [1]. Thus, high temperature electronics for HEV applications are desired in the engine compartment, power train, and brakes where the ambient temperature normally exceeds 150°C. Power converters (i.e. DC-DC converter, DC-AC inverter) inside the HEVs require Gate-Driver ICs to control the power switches....
متن کاملA curvature compensation technique for bandgap voltage references using adaptive reference temperatu - Circuits and Systems, 2002 IEEE International Symposium on
A curvature compensation technique for bandgap voltage references that utilizes an adaptive reference temperature is presented. This compensation technique is intended for high-resolution temperature-stable analogdigital converters. A test circuit had been designed in a 0.6 pn CMOS technology to implement this technique. The reference voltage has a simulated temperature coefficient of 2.3 ~ p m...
متن کاملA New Low-Voltage, Low-Power and High-Slew Rate CMOS Unity-Gain Buffer
Class-AB circuits, which are able to deal with currents several orders of magnitude larger than their quiescent current, are good candidates for low-power and high slew-rate analog design. This paper presents a novel topology of a class AB flipped voltage follower (FVF) that has better slew rate and the same power consumption as the conventional class-AB FVF buffer previously presented in liter...
متن کامل