Rainbow-electronics MAX1303 Manuel d'utilisateur télécharger pdf (Page 20)

MAX1302/MAX1303

8-/4-Channel, ±V

REF

Multirange Inputs,

Serial 16-Bit ADCs

20 ______________________________________________________________________________________

Table 6. Range-Select Bits

DIF/SGL R2 R1 R0 MODE TRANSFER FUNCTION

0 000No Range Change* —

0 001

Single-Ended

Bipolar -V

REF

/4 to +V

REF

Full-Scale Range (FSR) = V

REF

/ 2

Figure 12

0 010

Single-Ended

Unipolar -V

REF

/2 to 0

FSR = V

REF

/ 2

Figure 13

0 011

Single-Ended

Unipolar 0 to +V

REF

FSR = V

REF

/ 2

Figure 14

0 100

Single-Ended

Bipolar -V

REF

/2 to +V

REF

FSR = V

REF

Figure 12

0 101

Single-Ended

Unipolar -V

REF

to 0

FSR = V

REF

Figure 13

0 110

Single-Ended

Unipolar 0 to +V

REF

FSR = V

REF

Figure 14

0 111

DEFAULT SETTING

Single-Ended

Bipolar -V

REF

to +V

REF

FSR = 2 x V

REF

Figure 12

1 000No Range Change** —

1 001

Differential

Bipolar -V

REF

/2 to +V

REF

FSR = V

REF

Figure 12

1 010Reserved —

1 011Reserved —

1 100

Differential

Bipolar -V

REF

to +V

REF

FSR = 2 x V

REF

Figure 12

1 101Reserved —

1 110Reserved —

1 111

Differential

Bipolar -2 x V

REF

to +2 x V

REF

FSR = 4 x V

REF

Figure 12

*Conversion-Start Byte (see Table 3).

**Mode-Control Byte (see Table 3).

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 30 31

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Rainbow-electronics MAX1303 Manuel d'utilisateur Page 20

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