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| Titel: |
A Digitally Programmable Differential Integrator with Enlarged Time Constant |
| Auteur: |
R. Nandi S. K. Sanyal S. K. Debroy |
| Verschenen in: |
Radioengineering |
| Paginering: | Jaargang 3 (1994) nr. 4 pagina's xx |
| Jaar: |
1994 |
| Inhoud: |
A new Operational Amplifier (OA)-RC integrator network is described. The novelties of the design are used of single grounded capacitor, ideal integration function realization with dual-input capability and design flexibility for extremely large time constant involving an enlargement factor (K) using product of resistor ratios. The aspect of the digital control of K through a programmable resistor array (PRA) controlled by a microprocessor has also been implemented. The effect of the OA-poles has been analyzed which indicates degradation of the integrator-Q at higher frequencies. An appropriate Q-compensation design scheme exhibiting 1 : |A|2 order of Q-improvement has been proposed with supporting experimental observations. |
| Uitgever: |
Spolecnost pro radioelektronicke inzenyrstvi (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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