AD7788BRM Ver la hoja de datos (PDF) - Analog Devices

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Fabricante

AD7788BRM

Low Power, 16-/24-Bit Sigma-Delta ADC

Analog Devices 

AD7788/AD7789

Bit Location

MR5–MR3

MR2

Bit Name

0

U/B

MR1

1

MR0

0

Description

This bit must be programmed with a Logic 0 for correct operation.

Unipolar/Bipolar Bit. Set by user to enable unipolar coding, i.e., zero differential input will result in

000…000 output and a full-scale differential input will result in 111…111 output. Cleared by the user to

enable bipolar coding. Negative full-scale differential input will result in an output code of 000…000,

zero differential input will result in an output code of 100…000, and a positive full-scale differential

input will result in an output code of 111…111.

This bit must be programmed with a Logic 1 for correct operation.

This bit must be programmed with a Logic 0 for correct operation.

Table 12. Operating Modes

MD1 MD0 Mode

0

0

Continuous Conversion Mode

(Default)

0

1

Reserved

1

0

Single Conversion Mode

1

1

Powerdown Mode

DATA REGISTER (RS1, RS0 = 1, 1; POWER-ON/RESET = 0x0000 [AD7788] AND 0x000000 [AD7789])

The conversion result from the ADC is stored in this data register. This is a read-only register. On completion of a read operation from

this register, the RDY bit/pin is set.

Rev. 0 | Page 13 of 20

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