AD590 데이터 시트보기 (PDF) - Analog Devices

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AD590

2-Terminal IC Temperature Transducer

Analog Devices 

AD590

Data Sheet

Figure 24 demonstrates a method of multiplexing the AD590 in

the 2-trim mode (see Figure 13 and Figure 14). Additional

AD590s and their associated resistors can be added to multiplex

up to eight channels of ±0.5°C absolute accuracy over the

temperature range of −55°C to +125°C. The high temperature

restriction of 125°C is due to the output range of the op amps;

output to 150°C can be achieved by using a 20 V supply for the

op amp.

+15V

35.7kΩ 2kΩ

AD581

35.7kΩ 2kΩ

VOUT

5kΩ 97.6kΩ

5kΩ 97.6kΩ

S1

S2

DECODER/

DRIVER

S8

+15V

–15V

AD7501

TTL/DTL TO CMOS

INTERFACE

V+

OP177

10mV/°C

–15V

27kΩ

AD590L

AD590L

EN

BINARY

CHANNE L

SELECT

–5V TO –15V

Figure 24. 8-Channel Multiplexer

Rev. G | Page 12 of 16

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