Autors: Pandiev, I. M.
Keywords: analogue circuits, current-feedback amplifier, SPICE, Modelling

Abstract: In this paper, an enhanced SPICE macromodel for Current-Feedback Amplifiers (CFA) is presented which takes into account the second-order effects such as the noise, the commonmode rejection ratio (CMRR), the positive and negative output voltage swing, and powersupply rejection ratio (PSRR) as a function of temperature. The simulation model is developped through modifying the basic macromodel employing the mechanism of controlled sources and subcircuits. Model parameters are extracted for the integrated CFA AD8001 as an example. The accuracy of the model is demonstrated by comparison betwee


  1. Bowers, D, F.,Alexander, M.,Buxton, J.,, 1990, IEE : A comprehensive simulation macromodel for current feedback' operational amplifiers, , April 1990, <USA>, IEEE
  2. National Semiconductor, 1992, Development of an extensive SPICE macromodel for current-feedback amplifiers, USA, National Semiconductor
  3. Eltawil, M, H., Soliman, A, M.,, 1999, New precise SPICE macromodels for the current-feedback operational amplifier, Microelectronics Journal, Volume 30(9), pp. 841-849
  4. Biagi, H., Stiff, R., Baker, B.,Baier, S.,, 1995, Burr-Brown SPICE Based Macromodels, USA, Burr- Brown Corporation
  5. Schmid, R.,Blake, K.,, 1995, Simulation SPICE Models for Comlinear’s Op Amps, USA, National Semiconductor
  6. MicroSim, 1996, MicroSim PSpice A/D Reference Manual, MicroSim, Volume 2, pp.
  7. Shoikova, E., Pandiev, I.,, 2000, ELECTRONICS - ET'2000 : Macromodeling of operational amplifier’s power supply rejection ratio effects, Sozopol, September 2000, <Sofia>,
  8. Analog Devices, 2003, AD8001 current feedback amplifier – datasheet, USA, Analog Devices


ELECTRONICS’ 2006,20 – 22 September, vol. 1, pp. 26-32, 2006, Bulgaria,

Вид: пленарен доклад в международен форум