MAX144 Maxim, MAX144 Datasheet - Page 5

• Manufacturer Part Number: MAX144
• Description: +2.7V / Low-Power / 2-Channel / 108ksps / Serial 12-Bit ADCs in 8-Pin MAX
• Manufacturer: Maxim

(V
unless otherwise noted.)
DD
1500
1300
1100
1000
900
700
500
800
600
400
200
= +3.0V, V
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
2.5
-60
2.5
V
R
C
CODE = 101010100000
V
REF
L
L
REF
=
-35
= 50pF
= V
3.0
3.0
= V
DD
DD
-10
vs. SUPPLY VOLTAGE
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
REF
SUPPLY CURRENT
vs. TEMPERATURE
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
3.5
3.5
TEMPERATURE (°C)
OFFSET ERROR
15
= 2.5V, 0.1µF at REF, f
_______________________________________________________________________________________
4.0
4.0
40
+2.7V, Low-Power, 2-Channel, 108ksps,
65
4.5
4.5
90
5.0
5.0
115 140
5.5
5.5
SCLK
Serial 12-Bit ADCs in 8-Pin µMAX
= 2.17MHz, 16 clocks/conversion cycle (108ksps), CH- = GND for MAX145, T
1000
1500
1250
1000
800
600
400
200
750
500
-0.1
-0.2
-0.3
-0.4
-0.5
0
0.5
0.4
0.3
0.2
0.1
0
-60
-60
2.5
V
V
R
C
CODE = 101010100000
REF
REF
L
-40
L
-40
=
= 50pF
= V
= V
3.0
-20 0
-20 0
DD
DD
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
vs. TEMPERATURE
vs. TEMPERATURE
SUPPLY CURRENT
TEMPERATURE (°C)
TEMPERATURE (°C)
3.5
GAIN ERROR
20 40
20 40
V
DD
4.0
(V)
Typical Operating Characteristics
60 80 100 120 140
60 80 100 120 140
4.5
5.0
5.5
10,000
1000
100
0.1
10
1.0
0.8
0.6
0.4
0.2
1
-0.1
-0.2
-0.3
-0.4
-0.5
0.5
0.4
0.3
0.2
0.1
0
0
0.1
-60
2.5
V
C
CODE = 101010100000
DD
L
= 20pF
-35
= V
3.0
1
REF
SUPPLY CURRENT vs.
-10
vs. SUPPLY VOLTAGE
vs. TEMPERATURE
SAMPLING RATE (sps)
SAMPLING RATE
SUPPLY VOLTAGE (V)
10
TEMPERATURE (°C)
OFFSET ERROR
3.5
GAIN ERROR
15
100
4.0
40
65
1k
4.5
A
90
= +25°C,
10k
5.0
115 140
100k
5.5
5