Datasheet
MAX1036–MAX1039
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel 2-Wire Serial 8-Bit ADCs
6 _______________________________________________________________________________________
Typical Operating Characteristics
(V
DD
= 3.3V (MAX1037/MAX1039), V
DD
= 5V (MAX1036/MAX1038), f
SCL
= 1.7MHz, external clock (33% duty cycle), f
SAMPLE
= 188ksps,
single ended, unipolar, T
A
= +25°C, unless otherwise noted.)
150
250
200
350
300
400
450
SUPPLY CURRENT
vs. VOLTAGE
MAX1036 toc01
V
DD
(V)
I
DD
(µA)
2.5 3.5 4.03.0 4.5 5.0 5.5
A) INTERNAL 4.096V
REF
B) INTERNAL 2.048V
REF
C) EXTERNAL 4.096V
REF
D) EXTERNAL 2.048V
REF
A
C
B
D
150
250
200
350
300
400
450
-40 85
SUPPLY CURRENT
vs. TEMPERATURE
MAX1036 toc02
TEMPERATURE (°C)
I
DD
(µA)
10-15 35 60
INTERNAL 4.096V
REF
INTERNAL 2.048V
REF
EXTERNAL 4.096V
REF
EXTERNAL 2.048V
REF
0
1
3
2
4
5
2.5 3.53.0 4.0 4.5 5.0 5.5
SHUTDOWN SUPPLY CURRENT
vs.
SUPPLY VOLTAGE
MAX1036 toc03
V
DD
(V)
I
DD
(µA)
SDA = SCL = V
DD
0
1
3
2
4
5
-40 10-15 35 60 85
SHUTDOWN SUPPLY CURRENT
vs.
TEMPERATURE
MAX1036 toc04
TEMPERATURE (°C)
I
DD
(µA)
SDA = SCL = V
DD
V
DD
= 5V
V
DD
= 3.3V
0
100
50
200
150
300
250
350
0203010 40 50 60
AVERAGE SUPPLY CURRENT vs.
CONVERSION RATE (INTERNAL CLOCK)
MAX1036 toc05
CONVERSION RATE (ksps)
AVERAGE I
DD
(µA)
A) INTERNAL REF ALWAYS ON
B) INTERNAL REF AUTOSHUTDOWN
C) EXTERNAL REF
A
C
B
INTERNAL CLOCK MODE
f
SCL
= 1.7MHz
0
150
100
50
300
250
200
450
400
350
500
010050 150 200
AVERAGE SUPPLY CURRENT VS.
CONVERSION RATE (EXTERNAL CLOCK)
MAX1036 toc06
CONVERSION RATE (ksps)
AVERAGE I
DD
(µA)
A
C
B
A) INTERNAL REF ALWAYS ON
B) INTERNAL REF AUTOSHUTDOWN
C) EXTERNAL REF
EXTERNAL CLOCK MODE
f
SCL
= 1.7MHz
0.9900
0.9925
0.9950
0.9975
1.0000
1.0025
1.0050
1.0075
1.0100
4.00 4.504.25 4.75 5.00 5.25 5.50
NORMALIZED 4.096V REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
MAX1036 toc7
V
DD
(V)
V
REF
NORMALIZED
0.980
0.985
0.990
0.995
1.000
1.005
1.010
1.015
1.020
-40 -15 10 35 60 85
INTERNAL 4.096V REFERENCE VOLTAGE
vs. TEMPERATURE
MAX1036 toc08
TEMPERATURE (°C)
V
REF
NORMALIZED
0.9900
0.9925
0.9950
0.9975
1.0000
1.0025
1.0050
1.0075
1.0100
2.5 3.53.0 4.0 4.5 5.0 5.5
INTERNAL 2.048V REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
MAX1036 toc09
V
DD
(V)
V
REF
NORMALIZED