Data Sheet

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NAU7802 24-bit ADC

Nuvoton Confidential - 37 - Revision 1.7

11.15 REG0x1C: POWER CONTROL Register

Bit

Name

Description

7

PGA_CAP_EN

Enables PGA output bypass capacitor connected

across pins Vin2P Vin2N

6:4

MASTER_BIAS_CURR

MASTER_BIAS_CURR[2:0] Master bias Current

0 0 0 100% (default)

0 0 1 90% (lower power & accuracy)

0 1 0 80%

0 1 1 73%

1 0 0 67%

1 0 1 62%

1 1 0 58%

1 1 1 54%

3:2

ADC_CURR

ADC_CURR[1:0] ADC Current

0 0 100% of master bias

0 1 75% of master bias

1 0 50% of master bias

1 1 25% of master bias

1:0

PGA_CURR

PGA_CURR[1:0] PGA Current

0 0 100% of master bias (default)

0 1 95% of master bias (lower power & accuracy)

1 0 86% of master bias

1 1 70% of master bias

11.15.1 REG0x1D: Read Only

11.15.2 REG0x1E: Read Only

11.15.3 REG0x1F: Read Only

Bit

Name

Description

7:4

Reserved

MFG TEST

3:0

Revision ID

Chip Revision ID

1 1 1 1