东南大学学报（英文版）2008，Vol.24Issue(2)：163-167,5.
一种恒定跨导、摆率和增益的轨至轨运放
Rail-to-rail op-amp with constant transconductance, SR and gain
常昌远 1李弦 2姚建楠 1李娟2
作者信息
- 1. 东南大学集成电路学院,南京210096
- 2. 东南大学电子科学与工程学院,南京,210096
- 折叠
摘要
Abstract
A novel general-purpose low-voltage rail-to-rail CMOS(complementary metal-oxide-semiconductor transistor)operational amplifier(op-amp)is introduced, which obtainsconstant transconductance, slew rate and constant high gain overthe entire input common mode voltage range. The proposedscheme has the potential for applications in deep submicrometertechnology, as the operation of the circuit does not exclusivelyrely on the square-law or the linear-law of transistors. The schemeis compact and suitable for applications as VLSI cell. The rail-to-rail op-amp has been implemented in DPDM 0.6 um mixed-signal process. The simulations show that in the entire range ofinput common mode voltage, the variations in transconductance,SR and gain are 1% ,2.3%, 1.36 dB, respectively. Based on this,the layout and tape-out are carried out. The area of layout is0.072 mm2. The test results are basically consistent with thecircuit simulation.关键词
CMOS模拟电路/放大器/轨至轨/恒定跨导/恒定摆率/恒定增益Key words
CMOS analog circuit/ op-amp/ rail-to-rail/ constanttransconductance/ constant slew rate/ constant gain分类
信息技术与安全科学引用本文复制引用
常昌远,李弦,姚建楠,李娟..一种恒定跨导、摆率和增益的轨至轨运放[J].东南大学学报（英文版）,2008,24(2):163-167,5.
