Cirrus-logic CS5526 Manual do Utilizador descarregar pdf (Página 9)

CS5525 CS5526

DS202F5 9

Figure 4 illustrates the CS5525/26 connected to

measure ground referenced unipolar signals of a

positive polarity using the 1 V, 2.5 V, and 5 V input

voltage ranges on the converter. For the 25 mV, 55

mV, and 100 mV ranges the signal must have a

common mode near +2.5 V (NBV = 0V).

The CS5525/26 are optimized for the measurement

of thermocouple outputs, but they are also well

suited for the measurement of ratiometric bridge

transducer outputs. Figure 5 illustrates the

CS5525/26 connected to measure the output of a

ratiometric differential bridge transducer while op-

erating from a single +5 V supply.

-5V

NBV

30.1K

34.8K

2N5087

or similar

-5V

2.1K

2.0K

NBV

Figure 2. Charge Pump Drive Circuit for VD+ = 3 V. Figure 3. Alternate NBV Circuits.

Figure 4. CS5525/26 Configured for ground-referenced Unipolar Signals.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 29 30

Sem comentários

Cirrus-logic CS5526 Manual do Utilizador Página 9