Basic application circuit of AD590 b

Shown is a basic application circuit for the AD590.
    Since the AD590 is a current output, a series resistor can convert the output current into voltage. Figure 1-31 (a) is the most
basic application circuit . The output current of AD590 is in Zhan. , the voltage formed on RP is used as the output vo, and RP is used for output trimming.
For example, when Ri+RP=1. OK, at 25℃, the output vo=298. 15 bcA×lk0,=298. 15mV. Figure 1-31
(b) and (c) show the series and parallel applications of AD590 respectively. More than three of them can be connected in series or in parallel at the same time. AD590 series application can be used for multi-point temperature detection
in a small space ; Figure 1-31 (b) The output voltage is based on the position of the AD590 with the lowest temperature, Figure 1-31 (c) The output voltage is the average of several AD590s, It can improve the accuracy of multi-point temperature detection .     AD590 is very easy to interface with CMOS digital circuits. It can be connected to gate circuits, analog electronic switches, etc. Figure 1-31 (d) is a circuit using a NOT gate as an electronic switch for multi-channel temperature detection . The output voltage is affected by Cl, C2, C3 terminal control. For example, when cl -0, C2=1, C3 =1, the output is AD 590 -1.