Datasheet

MAX1303

4-Channel, ±V

REF

Multirange Inputs,

Serial 16-Bit ADC

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Table 3. Input Data Word Formats

DATA BIT

OPERATION

(START)

D6 D5 D4 D3 D2 D1 D0

Conversion-Start Byte

(Tables 4 and 5)

1C2C1C00 0 0 0

Analog-Input Configuration Byte

(Table 2)

1 C2 C1 C0 DIF/SGL R2 R1 R0

Mode-Control Byte

(Table 7)

1M2M1M01 0 0 0

Table 4. Channel Selection in Single-Ended Mode (DIF/SGL = 0)

CHANNEL-SELECT BIT CHANNEL

C2 C1 C0 CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 AGND1

000+ -

001 + -

010 + -

011 + -

100 + -

101 + -

110 +-

111 +-

Table 5. Channel Selection in True-Differential Mode (DIF/SGL = 1)

CHANNEL-SELECT BIT CHANNEL

C2 C1 C0 CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 AGND1

000+-

0 0 1 RESERVED

010 +-

0 1 1 RESERVED

100 +-

1 0 1 RESERVED

110 +-

1 1 1 RESERVED