The 13600, a new OTA

4-50 - elektor april 1982 applikator athe 13600, new OTA The new OTA, type 13600, is an extremely useful IC. This article deals with some practical applications; the theory is discussed elsewhere in this issue. Practically nothing can go wrong when ex- perimenting with the new OTA, as long as the maximum currents and voltages indicated in table 1 are not exceeded. According to available information at least three companies presently manufacture the 13600; EXAR (XR13600), National Semi- conductor ILM13600), and Philips (NE5517). The Philips version has a slightly different internal layout, but it is pin-compatible to the other two. Each IC contains two com- pletely separate OTAs. The circuit diagram for the Philips type is shown in figure 1. The circuit diagram for the EXAR and National Semiconductor version is shown in the article describing the theory of this OTA. The applications for the 13600 have been selected with the thought in mind, that there should be something for ever...