₹10,000.00Original price was: ₹10,000.00.₹6,000.00Current price is: ₹6,000.00.
Source : Tanner EDA
Abstract:
This brief presents a low-power and high-precision bandgap voltage and current reference (BGVCR) in one simple circuit for battery-powered applications. All the amplifiers have been eliminated in the proposed circuit. The voltage reference is derived from the bandgap topology, and the current reference is obtained by summing a proportional-to-absolute-temperature (PTAT) current and a complementary-to-absolute-temperature (CTAT) current. Therefore, the temperature coefficient of the current reference can be optimized. Besides, a pseudo-cascode structure and a simple line sensitivity enhancement circuit are adopted to improve the current mirror accuracy and line sensitivity. The proposed circuit is fabricated in a 0.18-μm deep N-well CMOS process with an active area of 0.063 mm2. The measured VREF and IREF are 1.2 V and 51 nA, respectively. The VREF and IREF show measured average temperature coefficients of 32.7 ppm/℃ and 89 ppm/℃ at a temperature of -45 to 125 ℃ and standard deviations of 0.17 % and 1.15 %, respectively. In the supply voltage range of 2 to 5 V, the line sensitivities of voltage and current are 0.058%/V and 1.76%/V, respectively. The minimum supply voltage is 2 V with a total power consumption of 192 nW at room temperature.
List of the following materials will be included with the Downloaded Backup:
₹10,000.00Original price was: ₹10,000.00.₹4,000.00Current price is: ₹4,000.00.
Source : Tanner EDA
Abstract:
This paper presents a hybrid adjusted temperature compensation circuit for reducing the temperature drift of the bandgap reference. Combining first-order bandgap current, nonlinear compensation current, and temperature curvature compensation current together, a temperature insensitive reference voltage can be obtained in proposed circuit. Designed and verified in UMC 28nm CMOS technology with Cadence IC615, the proposed circuit achieves a post-layout simulation temperature drift of 5.48 ppm/°C in the range of -20°C to 120°C with a supply voltage of 1.05-V.
List of the following materials will be included with the Downloaded Backup:
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