MAX1280 Datasheet, PDF (8/24 Pages) Maxim Integrated Products – 400ksps/300ksps, Single-Supply, Low-Power, 8-Channel, Serial 12-Bit ADCs with Internal Reference

400ksps/300ksps, Single-Supply, Low-Power, 8-Channel,
Serial 12-Bit ADCs with Internal Reference
Typical Operating Characteristics
(MAX1280: V_DD1 = V_DD2 = 5.0V, f_SCLK = 6.4MHz; MAX1281: V_DD1 = V_DD2 = 3.0V, f_SCLK = 4.8MHz; C_LOAD = 20pF, 4.7µF capacitor
at REF, 0.01µF capacitor at REFADJ, T_A = +25°C, unless otherwise noted.)
INTEGRAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
0.5
0.4
0.3
0.2
DIFFERENTIAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
0.6
0.4
0.2
SUPPLY CURRENT vs. SUPPLY
VOLTAGE (CONVERTING)
3.5
3.0
0.1
0
-0.1
-0.2
-0.3
0 500 1000 1500 2000 2500 3000 3500 4000 4500
DIGITAL OUTPUT CODE
0
-0.2
-0.4
-0.6
0 500 1000 1500 2000 2500 3000 3500 4000 4500
DIGITAL OUTPUT CODE
2.5
2.0
1.5
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. TEMPERATURE
3.2
SUPPLY CURRENT vs. SUPPLY
VOLTAGE (STATIC)
2.5
SUPPLY CURRENT vs. TEMPERATURE
(STATIC)
2.5
3.0
MAX1280
2.8
2.6
2.4
MAX1281
2.2
2.0
-40 -20
0 20 40 60
TEMPERATURE (°C)
80 100
2.0 ^{NORMAL OPERATION (PD1 = PD0 = 1)}
1.5
REDP (PD1 = 1, PD0 = 0)
1.0
FASTDP (PD1 = 0, PD0 = 1)
0.5
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
MAX1280 (PD1 = 1, PD0 = 1)
2.0
MAX1281 (PD1 = 1, PD0 = 1)
1.5
MAX1280 (PD1 = 1, PD0 = 0)
1.0
MAX1281 (PD1 = 1, PD0 = 0)
0.5 MAX1280 (PD1 = 0, PD0 = 1)
MAX1281 (PD1 = 0, PD0 = 1)
0
-40 -20
0 20 40 60
TEMPERATURE (°C)
80 100
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
5
(PD1 = PD0 = 0)
4
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
2.5
(PD1 = PD0 = 0)
2.0
MAX1280
2.5005
2.5003
REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
3
1.5
2.5001
MAX1281
2
1.0
2.4999
1
0.5
2.4997
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
0
-40 -20
0 20 40 60
TEMPERATURE (°C)
80 100
2.4995
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
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