User manual

RS232-ADC16/24
4 Application Sample
To illustrate the use of RS232-ADC16/24 – in special regard to VCC and VIN –
you might consider this schematic overview.
The task is to obtain sensor's data and transfer it to a monitoring software. In
case of critical or unusal conditions a nearby LED should indicate this.
Obviously, up to eight pairs of sensor and LED can be controlled using one
RS232-ADC16/24.
As described earlier, the device is powered via VIN at a maximum of 15V. The
device's internal voltage regulator provides 3.3V at VCC to power external
sensors. According to this, VCC should never be used to power RS232-
ADC16/24. Furthermore the range of the analog input (0 – 2.5V) has to be
taken in account.
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