Title :
An opamp with common-mode linearized input stage
Author_Institution :
Analog Devices, Santa Clara, CA, USA
Abstract :
Wideband large-signal distortion has been optimized by applying a common-mode linearization technique to the amplifier input stage. An operational amplifier has been fabricated in a 6 GHz fT dielectrically-isolated complementary bipolar process that achieves 1 nv/√Hz voltage noise, better than 90 dBc distortion for a 2 Vpp 10 MHz input signal, a 2 GHz GBW, and 500 μV Vos.
Keywords :
UHF amplifiers; bipolar analogue integrated circuits; linearisation techniques; nonlinear distortion; operational amplifiers; wideband amplifiers; 10 MHz; 2 GHz; 2 V; 500 muV; 6 GHz; amplifier input stage linearization; common-mode linearized input stage; dielectrically-isolated complementary bipolar process; opamp; operational amplifier; wideband large-signal distortion; Circuit noise; Frequency; Mirrors; Operational amplifiers; Resistors; Shape; Tail; Topology; Transconductance; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2004. Digest of Technical Papers. ISSCC. 2004 IEEE International
Print_ISBN :
0-7803-8267-6
DOI :
10.1109/ISSCC.2004.1332796
