Rainbow Electronics MAX1039 - Manual (Page 16)

MAX1036–MAX1039
2.7V to 5.5V, Low-Power, 4-/12-Channel
2-Wire Serial 8-Bit ADCs
16 ______________________________________________________________________________________
B. SCAN MODE CONVERSIONS WITH INTERNAL CLOCK
NOTE: t ACQ + t CONV
≤ 7.6µs PER CHANNEL.
S
1
SLAVE ADDRESS A
7 1 1
R CLOCK STRETCH
NUMBER OF BITS
P or Sr
1 8
RESULT A
1
A. SINGLE CONVERSION WITH INTERNAL CLOCK
S
1
SLAVE ADDRESS
7 1 1
R CLOCK STRETCH A
NUMBER OF BITS
P OR Sr
1 8
RESULT 1 A
1
A
8
RESULT 2 A
8
RESULT N
SLAVE TO MASTER
MASTER TO SLAVE
t CONV1
CLOCK STRETCH
t ACQ1
t CONV2
t ACQ2
t CONVN
t ACQN
t CONV t ACQ
1 1
Figure 10. Internal Clock Mode Read Cycles
SLAVE ADDRESS RESULT 1 RESULT 2 RESULT N
t
CONV1
t ACQ1
t
CONV2
t ACQ2
t
CONVN
t ACQN
t CONV t ACQ
NUMBER OF BITS
NUMBER OF BITS
1 8
A
1
S
1
A
7 1 1
R
S
1
A
7 1 1
R P OR Sr
1 8
A
1
A
8
A
8
B. SCAN MODE CONVERSIONS WITH EXTERNAL CLOCK
1 1
SLAVE ADDRESS P OR Sr RESULT
A. SINGLE CONVERSION WITH EXTERNAL CLOCK
SLAVE TO MASTER
MASTER TO SLAVE
Figure 11. External Clock Mode Read Cycles