MCP37231 datasheet(99/144 Pages) MICROCHIP

99 / 144 page

MCP37231/21-200 AND MCP37D31/21-200

DS20005322D-page 99

 2014-2016 Microchip Technology Inc.

ADDRESS 0X66 – DIGITAL OFFSET CORRECTION (LOWER BYTE)

R/W-0

DIG_OFFSET_GLOBAL<7:0>

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-0

DIG_OFFSET_GLOBAL<7:0>: Lower byte of DIG_OFFSET_GLOBAL<15:0> for all channels(1)

0000-0000

= Default

Note

Offset is added to the ADC output. Setting is two’s complement using two combined registers (16-bits wide).

Setting range: (-215 to 215 - 1) x step size. Step size of each bit setting:

- 12-bit mode: 0.125 LSb

- 14-bit mode: 0.25 LSb

- 16-bit mode: 0.5 LSb

- 18-bit mode: 1 LSb.

ADDRESS 0X67 – DIGITAL OFFSET CORRECTION (UPPER BYTE)

R/W-0

DIG_OFFSET_GLOBAL<15:8>

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-0

DIG_OFFSET_GLOBAL<15:8>: Upper byte of DIG_OFFSET_GLOBAL<15:0> for all channels(1)

0000-0000

= Default

Note

See

Note 1 in Address 0x66 (Register 5-24)

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