Operation of Analog Keys DG 401.403.405

In the course of the DG403DY that I used - Intersil. The datasheet promises a key resistance of 45 ohms maximum at room temperature (typical value is 20 ohms). The difference in the resistance of the channels is no more than 5 ohms. The key actuation time is 100 nsec (max 150) and the release time is 60 nsec (max 100), giving a maximum click speed of up to 4 MHz. The maximum current flowing through the logic inputs is +-1 µA. The maximum current flowing through the key is 30 mA (or 30,000 times more), and at the peak it is up to 100 mA. Channel capacitance - 39 pF. The bandwidth of the keys is not explicitly indicated, however, the datasheet has a graph of the ratio of losses to frequency, where the frequency goes beyond 10 MHz (the graph is almost uniform at low load resistances - 50 and 75 Ohms).