The method of the bandwidth extension of the transimpedance amplifiers with the paraphase output for the sensor signal processing tasks

The article suggests a circuit method of increasing the upper frequency limit (fc) of the transimpedance differential amplifiers (TDA) for the BiJ, BiJFet, BiCMOS, CMOS and other processes. It shows that when entering the special compensating circuits into the TDA classical circuits, realized on the base of the “folded” cascodes and the symmetrical active loads, the upper frequency limit f6 is increased by a factor of 5÷10. The authors give the examples of the TDA construction for sensor interfaces, including those ones which are based on the BiJFet array chips AC_1.3/Z1, capable to operate under radiation and low temperatures. Present the results of computer simulation for the TDA BiJ, BiJFet and CMOS technologies.