Rainbow Electronics MAX11645 - Manual (Page 7)

MAX11644/MAX11645
Low-Power, 1-/2-Channel, I
2
C, 12-Bit ADCs
in Ultra-Tiny 1.9mm x 2.2mm Package
_______________________________________________________________________________________ 7
OFFSET ERROR vs. TEMPERATURE
M
AX11644 toc11
TEMPERATURE ( °C)
OFFSET ERROR (LSB)
80 65 35 50 -10 5 20 -25
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
-1.0
-40
OFFSET ERROR vs. SUPPLY VOLTAGE
M
AX11644 toc12
V DD (V)
OFFSET ERROR (LSB)
5.2 5.5 4.7 4.2 3.7 3.2
-1.6
-1.2
-0.8
-0.4
0
0.4
0.8
1.2
1.6
2.0
-2.0
2.7
GAIN ERROR vs. TEMPERATURE
M
AX11644 toc13
TEMPERATURE ( °C)
GAIN ERROR (LSB)
80 65 35 50 -10 5 20 -25
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
-40
GAIN ERROR vs. SUPPLY VOLTAGE
M
AX11644 toc14
V DD (V)
GAIN ERROR (LSB)
5.2 5.5 4.7 4.2 3.7 3.2
-1.6
-1.2
-0.8
-0.4
0
0.4
0.8
1.2
1.6
2.0
-2.0
2.7
0.9990
0.9994
0.9992
0.9998
0.9996
1.0002
1.0000
1.0004
1.0008
1.0006
1.0010
-40 -10 5 -25 20 35 50 65 80
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
M
AX11644 toc09
TEMPERATURE ( °C)
V
REF
NOR
M
ALIZED
NORMALIZED TO VALUE AT T A = +25 °C
MAX11644
MAX11645
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 3.9 3.0 4.2 4.5 4.8 5.1 5.4
NORMALIZED REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
M
AX11644 toc10
V DD (V)
V
REF
(V)
MAX11644
NORMALIZED TO
REFERENCE VALUE AT
V
DD = 5V
MAX11645
NORMALIZED TO
REFERENCE VALUE AT
V
DD
= 3.3V
Typical Operating Characteristics (continued)
(V DD = 3.3V (MAX11645), V DD = 5V (MAX11644), f SCL = 1.7MHz, 50% duty cycle, f SAMPLE = 94.4ksps, single-ended, unipolar,
T A = +25°C, unless otherwise noted.)