Datasheet

MAX1284/MAX1285
400ksps/300ksps, Single-Supply, Low-Power,
Serial 12-Bit ADCs with Internal Reference
6 _______________________________________________________________________________________
__________________________________________Typical Operating Characteristics
(MAX1284: V
DD
= +5.0V, f
SCLK
= 6.4MHz, MAX1285: V
DD
= +3.0V, f
SCLK
= 4.8MHz; C
LOAD
= 20pF, 4.7µF capacitor at REF,
T
A
= +25°C, unless otherwise noted.)
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
01k2k3k 5k
INTEGRAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
MAX1284/5 toc01
DIGITAL OUTPUT CODE
INL (LSB)
4k
-0.4
-0.1
-0.2
-0.3
0
0.1
0.2
0.3
0.4
0.5
0.6
02k1k 3k 4k 5k
DIFFERENTIAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
MAX1284/5 toc02
DIGITAL OUTPUT CODE
DNL (LSB)
-1.0
0
-0.5
1.0
0.5
1.5
2.0
2.5 4.0 4.53.0 3.5 5.0 5.5 6.0
OFFSET ERROR vs. SUPPLY VOLTAGE
MAX1284/5 toc03
V
DD
(V)
OFFSET ERROR (LSB)
0
0.4
0.2
1.0
0.8
0.6
1.6
1.4
1.2
1.8
-40 0 20-20 40 60 80 100
OFFSET ERROR vs. TEMPERATURE
MAX1284/5 toc04
TEMPERATURE (
°
C)
OFFSET ERROR (LSB)
2.490
2.496
2.494
2.492
2.498
2.500
2.502
2.504
2.506
2.508
2.510
2.5 3.53.0 4.0 4.5 5.0 5.5
INTERNAL REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
MAX1284/5 toc07
SUPPLY VOLTAGE (V)
REFERENCE VOLTAGE (V)
-1.0
-0.4
-0.6
-0.8
-0.2
0
0.2
0.4
0.6
0.8
1.0
2.5 3.53.0 4.0 4.5 5.0 5.5
GAIN ERROR vs. SUPPLY VOLTAGE
MAX1284/5 toc05
V
DD
(V)
GAIN ERROR (LSB)
-2.5
-1.5
-2.0
-0.5
-1.0
0.5
0
1.0
-40 0 20-20 40 60 80 100
GAIN ERROR vs. TEMPERATURE
MAX1284/5 toc06
TEMPERATURE (
°
C)
GAIN ERROR (LSB)
2.490
2.496
2.494
2.492
2.500
2.498
2.508
2.506
2.504
2.502
2.510
-40 -20 0 20 40 60 80 100
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
MAX1284/5 toc08
TEMPERATURE (°C)
REFERENCE VOLTAGE (V)