AD7176-2 Datasheet, PDF (22/68 Pages) Analog Devices – The AD7176-2 is a fast settling, highly accurate, high resolution, multiplexed Σ-Δ analog-to-digital converter (ADC) for low band-width input signals.

AD7176-2
Channel Map Configuration
The AD7176-2 has four independent channels (see Block C in
Figure 28). The user can select which of the four setups is used
for each channel. This allows for per channel configuration.
Channel Map Register
The channel map register is used to select which of the five
analog input pins are used as either the positive analog input or
the negative analog input for that channel. This register also
Data Sheet
contains a channel enable/disable bit and the setup selection
bits, which are used to pick which of the four available setups
are used for this channel.
When the AD7176-2 is operating in continuous conversion
mode with more than one channel enabled, the channel
sequencer cycles through the enabled channels in sequential
order, from Channel Map 0 to Channel Map 3. If a channel is
disabled, it is skipped by the sequencer. Details of the channel
map register for Channel 0 are shown in Table 15.
Table 15. Channel Map Register
Reg Name
Bits Bit 7
0x10 CHMAP0 [15:8] CH_EN0
[7:0]
Bit 6
Bit 5
Bit 4
RESERVED
SETUP_SEL0
AINPOS0[2:0]
Bit 3
Bit 2
Bit 1
Bit 0
RESERVED
AINPOS0[4:3]
AINNEG0
Reset RW
0x8001 RW
Rev. 0 | Page 22 of 68