Datasheet

MAX1280/MAX1281
400ksps/300ksps, Single-Supply, Low-Power, 8-Channel,
Serial 12-Bit ADCs with Internal Reference
_______________________________________________________________________________________ 9
-3
-1
-2
0
1
2.7 3.33.0 3.6
GAIN ERROR vs. SUPPLY VOLTAGE
MAX1280/1-13
V
DD
(V)
GAIN ERROR (LSB)
Typical Operating Characteristics (continued)
(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.)
2.4988
2.4992
2.4990
2.4996
2.4994
2.5000
2.4998
2.5002
-40 0 20-20 40 60 80 100
REFERENCE VOLTAGE
vs. TEMPERATURE
MAX1280/1-10
TEMPERATURE (°C)
REFERENCE VOLTAGE (V)
MAX1281
MAX1280
-2.5
-2.0
-1.0
-1.5
-0.5
0
OFFSET ERROR vs. SUPPLY VOLTAGE
MAX1280/1-11
V
DD
(V)
OFFSET ERROR (LSB)
2.7 3.33.0 3.6
-2.5
-1.5
-2.0
-0.5
-1.0
0
0.5
-40 10-15 35 60 85
OFFSET ERROR vs. TEMPERATURE
MAX1280/1-12
TEMPERATURE (
°
C)
OFFSET ERROR (LSB)
-2.0
-1.5
-0.5
-1.0
0
0.5
GAIN ERROR vs. TEMPERATURE
MAX1280/1-14
TEMPERATURE (
°
C)
GAIN ERROR (LSB)
-40 10-15 35 60 85
MAX1281