Datasheet

MAX11646/MAX11647
Low-Power, 1-/2-Channel, I
2
C, 10-Bit ADCs
in Ultra-Tiny 1.9mm x 2.2mm Package
_______________________________________________________________________________________ 7
0.99990
0.99994
0.99992
0.99998
0.99996
1.00002
1.00000
1.00004
1.00008
1.00006
1.00010
2.7 3.3 3.6 3.93.0 4.2 4.5 4.8 5.1 5.4
NORMALIZED REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
MAX11646 toc09
V
DD
(V)
V
REF
NORMALIZED
MAX11646,
NORMALIZED TO
REFERENCE VALUE AT
V
DD
= 5V
MAX11647,
NORMALIZED TO
REFERENCE VALUE AT
V
DD
= 3.3V
-1.0
-0.8
-0.9
-0.6
-0.7
-0.4
-0.5
-0.3
-0.1
-0.2
0
-40 -10 5-25 20 35 50 65 80
OFFSET ERROR vs. TEMPERATURE
MAX11646 toc10
TEMPERATURE (°C)
OFFSET ERROR (LSB)
Typical Operating Characteristics (continued)
(V
DD
= 3.3V (MAX11647), V
DD
= 5V (MAX11646), f
SCL
= 1.7MHz, external clock, f
SAMPLE
= 94.4ksps, single-ended, unipolar,
T
A
= +25°C, unless otherwise noted.)
-1.0
-0.8
-0.9
-0.6
-0.7
-0.4
-0.5
-0.3
-0.1
-0.2
0
2.7 3.3 3.6 3.93.0 4.2 4.5 4.8 5.1 5.4
OFFSET ERROR vs. SUPPLY VOLTAGE
MAX11646 toc11
V
DD
(V)
OFFSET ERROR (LSB)
0
0.2
0.1
0.4
0.3
0.6
0.5
0.7
0.9
0.8
1.0
-40 -10 5-25 20 35 50 65 80
GAIN ERROR vs. TEMPERATURE
MAX11646 toc12
TEMPERATURE (°C)
GAIN ERROR (LSB)
0
0.3
0.2
0.1
0.4
0.5
0.6
0.7
0.8
0.9
1.0
2.7 3.73.2 4.2 4.7 5.2
GAIN ERROR vs. SUPPLY VOLTAGE
MAX11646 toc13
V
DD
(V)
GAIN ERROR (LSB)