ISSN:
1573-1979
Keywords:
analog VLSI
;
analog filters
;
low-power
;
low-voltage
;
transconductance amplifiers
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
Notes:
Abstract In this paper, a low-voltage low-power rail-to-rail constant g m transconductance amplifier (TA) is introduced. The supply voltages are set at (±1.5 V). The circuit depends on selecting the maximum transconductance (g m ) to achieve an almost constant g m over the entire common-mode (CM) range. The circuit is then used to realize a second-order 4 MHz lowpass filter consuming 530 μW, and a fifth-order 450 kHz lowpass elliptic filter consuming 2.3 mW. Both filters can be integrated on silicon without any external connections.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1008332021967
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