
MAX1167/MAX1168
Multichannel, 16-Bit, 200ksps Analog-to-Digital
Converters
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15
BIT7
BIT6
BIT5
CH SEL2
CH SEL1
CH SEL0
CHANNEL
AIN_
00
0
00
1
01
0
2
01
1
3
10
0
4
10
1
5
11
0
6
11
1
7
Table 2. Channel Select
BIT4
BIT3
ACTION
SCAN1
SCAN0
Single channel, no scan
0
Sequentially scan channels 0 through N
(N
≤ 3)
01
Sequentially scan channels 2 through N
(2
≤ N ≤ 3)
10
Scan channel N four times
1
Table 3. MAX1167 Scan Mode, Internal
Clock Only
BIT4
BIT3
ACTION
SCAN1
SCAN0
Single channel, no scan
0
Sequentially scan channels 0 through N
(N
≤ 7)
01
Sequentially scan channels 4 through N
(4
≤ N ≤ 7)
10
Scan channel N eight times
1
Table 4. MAX1168 Scan Mode, Internal
Clock Only (Not for DSP Mode)
BIT2
BIT1
REF/PD_
SEL1
REF/PD
SEL0
REFERENCE
REFERENCE MODE
(INTERNAL REFERENCE)
TYPICAL
SUPPLY
CURRENT
TYPICAL WAKE-
UP TIME
(CREF = 1F)
0
Internal
Internal reference and reference buffer on
between conversions
1mA
NA
0
1
Internal
Internal reference and reference buffer off
between conversions
0.6A
5ms
1
0
Internal
Internal reference on, reference buffer off
between conversions
0.43mA
5ms
1
External
Internal reference and buffer always off
0.6A
NA
Table 5. Power-Down Modes
BIT0
INT/EXT
CLK
CLOCK MODE
0
External clock
1
Internal clock
Table 6. Clock Modes