MAX11329–MAX11332
3Msps, 12-/10-Bit, 8-/16-Channel ADCs with
Post-Mux External Signal Conditioning Access
The SampleSet approach provides greater sequencing
flexibility for multichannel applications while alleviat-
ing significant microcontroller communication overhead.
SampleSet technology allows the user to exploit available
ADC input bandwidth without need for constant commu-
nication between the ADC and controlling unit. The user
may define and load a unique sequencing pattern into
the ADC allowing both high- and low-frequency inputs
to be converted appropriately without interface activity.
With the unique sequence loaded into ADC memory, the
pattern may be repeated indefinitely or changed at any
time.
For example, the maximum throughput of MAX11329–
MAX11332 is 3Msps. Traditional ADC scan modes allow
SampleSet REPEATS: LENGTH = 256
SAMPLE SET
(DEPTH = 256)
ST
ND
RD
TH
TH
TH
TH
TH
TH
9 CYCLE
1
CYCLE
2
CYCLE
3
CYCLE
4
CYCLE
5
CYCLE
6
CYCLE
7
CYCLE
8
CYCLE
POTENTIAL SampleSet PATTERN
AIN2/
AIN2/
AIN3
AIN2/
AIN3
AIN2/
AIN3
CHANNEL:
AIN0
2
AIN1
3
AIN0
4
AIN1
5
AIN0
AIN1
AIN3
AIN4
123
AIN5
124
AIN6
125
AIN7
126
AIN8
127
AIN9
128
AIN10 AIN11 AIN12 AIN13 AIN14 AIN15
129 130 131 132 133 134
AIN0
136
AIN1
137
AIN0
254
AIN1
255
1
120
121
122
135
256
ENTRY NO.:
120 CONVERSIONS:
AIN0 AND AIN1
120 CONVERSIONS:
AIN0 AND AIN1
ANALOG
INPUTS
AIN0
AIN1
100kHz
100 CYCLES
135
AIN2
FULLY
DIFFERENTIAL
10kHz
10 CYCLES
1
AIN3
122
123
124
125
256
1kHz
1 CYCLES
AIN4
AIN5
AIN6
t
= 1/f = 1/3Msps = 333.33ns
S
S
AIN7
CS
10
AIN8
8
AIN0
12
6
14
4
AIN9
16
32
2
18
10µs
30
T
S
5µs
AIN10
AIN11
AIN12
AIN13
20
28
22
f
= 100kHz
26
in
24
9
11
AIN1
7
13
5
15
3
17
31
19
5µs
10µs
T
S
29
21
27
23
25
Figure 9. SampleSet Use-Model Example
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