General

The oversampling output terminals EL4712 and EL4732 have the same function. They are therefore referred to as the EL47xx series below.

The oversampling feature enables the terminal to sample analog output values several times during each bus cycle on each channel. Both channels are operated with the same oversampling setting.

The EL4712 analog output terminal can be used to output two currents independently with a resolution of 16 bit + sign, i.e. 2¹⁵ = 32767 steps in the range between 0 and 20 mA.
With the EL4732 analog output terminal two voltages can be output independently with a resolution of 16 bit (65535 steps) in a range between -10 and +10 V.

Parallel connection

The current outputs of the EL4xxx devices can be connected in parallel to a load if the load has a current requirement higher than 20 mA. All GND must be connected together. Channels of one terminal but also channels of several terminals can be used for this purpose.

When designing the layout, it must be noted that Ohm's law still applies: U = R*I. If, for example, a channel with 10 V can drive its 20 mA through a 500 Ohm load (see specifications in the previous chapter), the load may only be 250 Ohm if 2 * 20 mA are to be output with two parallel connected channels of 10 V each - because the output voltage of the channels does not increase due to the parallel connection.