Rainbow Electronics MAX1039 - Manual (Page 6)

MAX1036–MAX1039
2.7V 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
(µ
A)
2.5 3.5 4.0 3.0 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
(µ
A)
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 3.5 3.0 4.0 4.5 5.0 5.5
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX1036 toc03
V DD (V)
I DD
(µ
A)
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
(µ
A)
SDA = SCL = V DD
V DD = 5V
V
DD
= 3.3V
0
100
50
200
150
300
250
350
0 20 30 10 40 50 60
AVERAGE SUPPLY CURRENT vs.
CONVERSION RATE (INTERNAL CLOCK)
MAX1036 toc05
CONVERSION RATE (ksps)
AVERAGE I
DD
(µ
A)
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
0 100 50 150 200
AVERAGE SUPPLY CURRENT VS.
CONVERSION RATE (EXTERNAL CLOCK)
MAX1036 toc06
CONVERSION RATE (ksps)
AVERAGE I
DD
(µ
A)
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 4.50 4.25 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 3.5 3.0 4.0 4.5 5.0 5.5
INTERNAL 2.048V REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
MAX1036 toc09
V DD (V)
V
REF
NORMALIZED