Design of a 1-v Low Power Cmos Bandgap Reference Based on Resistive Subdivision
نویسنده
چکیده
A design of a CMOS bandgap reference (BGR), for portable applications with medium accuracy, is described and the measurement results of the fabricated chips are presented. The output voltage of the reference is set by resistive subdivision. In order to achieve small area and low power consumption, n-well resistors are used. This design features a reference voltage of 0.750 V with 1σ variation of 10 mV (1.3 %) without trimming with supply voltage range from 1 V to 1.6 V and temperature range of –20 C .. 50 C measured from 10 samples. The maximum supply current is 4.5 μA and the area of the design is ~ 0.13 mm with a standard 0.35 μm double-poly n-well CMOS process.
منابع مشابه
Low Power Voltage Controlled And Temperature Compensated CMOS Ring Oscillator
This paper presents a CMOS voltage controlled ring oscillator (VCO) with temperature compensation circuit suitable for low-cost and low-power MEMS gas sensor. This compensated ring oscillator is dedicated to Chopper Stabilized CMOS Amplifier (CHS-A). To operate at low frequency, a control voltage generated by a CMOS bandgap reference (BGR) is described and the measurement results of the fabrica...
متن کاملSub-1-V-Output CMOS bandgap reference circuit with small area and low power consumption
In this paper, a new low-VDD CMOS bandgap reference circuit with small layout area and low power consumption is proposed. The proposed circuit delivering its output voltage below 1V has its Proportional-To-Absolute-Temperature (PTAT) term compensated by the Complementary-proportional-To-AbsoluteTemperature (CTAT) voltage thereby suppressing a change in its output voltage regardless of temperatu...
متن کاملCMOS Bandgap Voltage Reference With 1.8-V Power Supply
To overcome the limitation of the silicon energy gap in electron volts 1.2V wluch leads to tllat the voltage reference is fixed at about 1.2V. a design of current-mode (CM) architecture CMOS bandgap voltage reference with afiitnry voltage value by setting tlie resistor value is presented liere with Ion 1.8-V power supply. Tlie siniiilation results indicate a temperature coefficient (TC) of jppm...
متن کاملطراحی مرجع ولتاژ زیر یک ولت قابل کاشت در بدن با دقت ppm/میکرومتر15 با استفاده از ترانزیستورهای ذاتی(Native)
Voltage references are crucial part of every circuit, providing a fixed voltage regardless of environmental parameters and device loading. Among several approaches proposed for designing voltage references, bandgap voltage references are the most common, but the bandgap voltage reference is bipolar in nature and does not show good stability when the supply voltage is small. Thus according to th...
متن کاملA Novel Sub-1 Volt Bandgap Reference with all CMOS
This paper deals with the design of novel sub-1-V bandgap reference circuit using only MOS transistors in 0.18 μm CMOS technology, for a supply voltage of 1.8V. The circuit produces a voltage reference of 466.5 mV at 27C with a temperature coefficient of 28.4 ppm/C in the range of -20 to +120C. The power supply rejection of circuit is -30 dB at 8 KHz and this rejection further increase to -50 d...
متن کامل