MAX144 Datasheet, PDF (5/16 Pages) Maxim Integrated Products – +2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin μMAX

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