Bandgap voltage Reference IC for HV Automotive Applications with Pseudo-Regulated Bias and Service regulator
نویسندگان
چکیده
The paper presents a bandgap voltage reference (BGR) implemented in TSMC 0.25 m BCD technology for an automotive application. To withstand a car's battery large voltage variations, from 5V to 40V, the circuit features an embedded pseudo-regulator providing a stable bias current for the bandgap core. High-voltage (HV) MOS count has been kept low thus allowing the design of a compact BGR with an area of 0.118mm. The BGR has been designed to operate in automotive extended temperature range ( 40 C to 150 C) and it provides a stable voltage of 1.21V, which is also used as reference for a cascade 3.7V linear regulator. Measurements carried on fabricated IC samples prove the e®ectiveness of the BGR design in terms of supported input voltage variations and operating temperature range, temperature drift, line regulation and PSRR performance.
منابع مشابه
UWB Mixer improvement with Regulated Voltage Source
This paper presents a design of an UWB downconversion integrated CMOS resistive ring mixer with Linear Voltage Regulator (LVR), to supply required biasing voltages for the mixer section. The designed mixer circuit has been optimized for using in heart rate extraction system with microwave Doppler radar at 2.4GHz frequency. This mixer needs 2 DC bias voltages equal to 0.5 and 1 volts for its bes...
متن کاملInside the Belly of the Beast: A Map for the Wary Bandgap Reference Designer when Confronting Process Variations
"Fast is fine, but accuracy is everything," said Wyatt Earp, famous lawman and prospector of the West. While the statement may have referred to his skill with a gun or his search for gold, it particularly rings true for design of integrated reference circuits. Whether used in an A/D converter to establish a standard to compare voltages against, or in an operational amplifier to set up a bias co...
متن کاملA Novel Dynamic Voltage Regulator with a Multi-level AC/AC Converter
This article proposed a novel topology of dynamic voltage regulator using transformer and PWM multi-level AC/AC converter. In this paper for finding the best value of duty ratio for switches to minimize the THD, the GA algorithm has been used and THD output voltage is assumed to be fitness function. The proposed voltage regulator employs multi-level AC/AC converter to generate compensation volt...
متن کاملA high supply voltage bandgap reference circuit using drain-extended MOS devices
A bandgap reference circuit that uses high-voltage drainextended MOS (DeMOS) devices is presented for high supply voltage application without using a voltage regulator for the bandgap core circuit. The bandgap reference circuit was fabricated using commercially available 0.18μm high-voltage DeMOS technology. Measurement result of the chip shows that the reference voltage change rate for VDD var...
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 کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Journal of Circuits, Systems, and Computers
دوره 22 شماره
صفحات -
تاریخ انتشار 2013