Datasheet

MAX11634–MAX11637
12-Bit, 300ksps ADCs with Differential
Track/Hold, and Internal Reference
8 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
DD
= 3V, V
REF
= 2.5V, f
SCLK
= 4.8MHz, C
LOAD
= 30pF, T
A
= +25°C for MAX11635/MAX11637, unless otherwise noted. V
DD
= 5V,
V
REF
= 4.096V, f
SCLK
= 4.8MHz, C
LOAD
= 30pF, T
A
= +25°C for MAX11634/MAX11636, unless otherwise noted.)
INTERNAL REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
MAX11634 toc18
V
DD
(V)
V
REF
(V)
5.155.054.954.85
4.095
4.096
4.097
4.098
4.099
4.094
4.75 5.25
MAX11634/MAX11636
V
DD
= 5V
INTERNAL REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
MAX11634 toc19
V
DD
(V)
V
REF
(V)
3.33.0
2.498
2.499
2.500
2.501
2.502
2.497
2.7 3.6
MAX11635/MAX11637
V
DD
= 3V
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
MAX11634 toc20
TEMPERATURE (°C)
V
REF
(V)
603510-15
4.08
4.09
4.10
4.11
4.12
4.07
-40 85
MAX11634/MAX11636
V
DD
= 5V
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
MAX11634 toc21
TEMPERATURE (°C)
V
REF
(V)
603510-15
2.48
2.49
2.50
2.51
2.52
2.47
-40 85
MAX11635/MAX11637
V
DD
= 3V
OFFSET ERROR vs. SUPPLY VOLTAGE
MAX11634 toc22
V
DD
(V)
OFFSET ERROR (LSB)
5.155.054.954.85
-0.4
-0.2
0
0.2
0.4
0.6
-0.6
4.75 5.25
MAX11634/MAX11636
f
SAMPLE
= 300ksps
OFFSET ERROR vs. SUPPLY VOLTAGE
MAX11634 toc23
V
DD
(V)
OFFSET ERROR (LSB)
3.33.0
0.95
1.00
1.05
1.10
0.90
2.7 3.6
MAX11635/MAX11637
f
SAMPLE
= 300ksps
OFFSET ERROR vs. TEMPERATURE
MAX11634 toc24
TEMPERATURE (°C)
OFFSET ERROR (LSB)
603510-15
-0.6
-0.2
0.2
0.6
1.0
-1.0
-40 85
MAX11634/MAX11636
f
SAMPLE
= 300ksps