Accession Number:

ADA454956

Title:

Area-Efficient Switched Capacitor Filters: Very Large Time-Constant Circuits

Descriptive Note:

Research rept.

Corporate Author:

MARYLAND UNIV COLLEGE PARK SYSTEMS RESEARCH CENTER

Report Date:

1992-01-01

Pagination or Media Count:

31.0

Abstract:

The detailed theoretical analysis of very large time-constant VLT integrators which use either charge elimination T-cell and Huangs integrators or charge cancellation Nagarajs and charge differencing integrators are described. Using a new area efficient design, the charge differencing CD integrator, the capacitance spread ratio can be easily reduced to less than the reciprocal of the square root of the product of the pole frequency and the sampling period. nonideal effects of op-amp like finite DC gain and offset voltage can also be compensated by employing offset storing capacitor operating only with the bi-phase clocking scheme.

Subject Categories:

  • Electricity and Magnetism
  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE