MCP37231 datasheet(17/144 Pages) MICROCHIP

17 / 144 page

 2014-2016 Microchip Technology Inc.

DS20005322D-page 17

MCP37231/21-200 AND MCP37D31/21-200

TABLE 1-3:

DATA OUTPUT PINS FOR EACH RESOLUTION OPTION

ADC

Resolution

Output Pin Name

Q15/

Q7+

Q14/

Q7-

Q13/

Q6+

Q12/

Q6-

Q11/

Q5+

Q10/

Q5-

Q9/

Q4+

Q8/

Q4-

Q7/

Q3+

Q6/

Q3-

Q5/

Q2+

Q4/

Q2-

Q3/

Q1+

Q2/

Q1-

Q1/

Q0+

Q0/

Q0-

DM1/

DM+

DM2

/DM-

18-bit mode

Q15 pin is MSb (bit 17), and DM2 is LSb (bit 0)

16-bit mode

Q15 pin is MSb, and Q0 is LSb

Not used(2)

14-bit mode(1)

Q15 pin is MSb, and Q2 is LSb

Not used(2)

12-bit mode

Q15 pin is MSb, and Q4 is LSb

Not used(2)

10-bit mode

Q15 pin is MSb, and Q6 is LSb

Not used(2)

Note 1:

The MCP37221-200 and MCP37D21-200 devices have the 14-bit mode option only, while the MCP37231-

200 and MCP37D31-200 have all listed resolution options.

Output condition at “not-used” output pin:

-‘0’ in CMOS mode. Leave these pins floating.

- High Z state in LVDS mode

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