Title :
Wide output swing inverter fed modified regulated cascode amplifier for analog and mixed-signal applications
Author :
Vajpayee, Prateek ; Shrivastava, A. ; Rajput, S.S. ; Sharma, G.K.
Author_Institution :
ABV- Indian Inst. of Inf. Technol. & Manage., Gwalior, India
Abstract :
Two modified regulated cascode amplifier (RCA) structures are presented that reduce the output compliance voltage requirements of conventional RCA. One structure utilizes a push-pull amplifier to enhance output resistance whereas the other structure incorporates a level shifter in the conventional RCA structure. P-SPICE simulations have been used to validate the proposed structures at ±0.6 V for 250 nm CMOS technology. The modified (utilizing level shifter) and the conventional RCA structure have similar properties (18 M¿ output impedance, 74 dB dc gain, 1.1 GHz unity gain bandwidth and 35 ¿W dissipation), whereas significant improvement have been observed for push-pull inverter fed RCA structure.
Keywords :
CMOS integrated circuits; SPICE; differential amplifiers; invertors; CMOS technology; P-SPICE simulation; analog signal application; frequency 1.1 GHz; gain 74 dB; level shifter; mixed-signal application; output compliance voltage requirements; output resistance; power 35 muW; push-pull amplifier; regulated cascode amplifier structure; size 250 nm; wide output swing inverter; Analog circuits; Bandwidth; CMOS technology; Frequency; Impedance; Inverters; Low voltage; MOSFETs; Threshold voltage; Transconductance; Regulated cascode amplifier; compliance voltage; level shifter; offset current; push-pull inverting amplifier; self bias; switching threshold;
Conference_Titel :
TENCON 2009 - 2009 IEEE Region 10 Conference
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-4546-2
Electronic_ISBN :
978-1-4244-4547-9
DOI :
10.1109/TENCON.2009.5395981
