Datasheet
_______________________________________________________________________________________ 5
MAX11208
20-Bit, Single-Channel, Ultra-Low-Power,
Delta-Sigma ADC with 2-Wire Serial Interface
Typical Operating Characteristics
(V
AVDD
= 3.6V, V
DVDD
= 1.8V, V
REFP
- V
REFN
= AVDD; internal clock; T
A
= T
MIN
to T
MAX
, unless otherwise specified. Typical values
are at T
A
=
+25NC.)
ANALOG ACTIVE CURRENT
vs. AVDD VOLTAGE (MAX11208A)
MAX11208 toc01
AVDD VOLTAGE (V)
CURRENT (µA)
3.453.303.153.002.85
120
140
160
180
200
220
240
V
DVDD
= 1.8V
T
A
= +85°C
T
A
= +25°C
T
A
= -45°C
100
2.70 3.60
ANALOG ACTIVE CURRENT
vs. AVDD VOLTAGE (MAX11208B)
MAX11208 toc02
AVDD VOLTAGE (V)
CURRENT (µA)
3.453.303.153.002.85
120
140
160
180
200
220
240
V
DVDD
= 1.8V
T
A
= +85°C
T
A
= +25°C
T
A
= -45°C
100
2.70 3.60
ANALOG SLEEP CURRENT vs. AVDD
VOLTAGE (MAX11208A/MAX11208B)
MAX11208 toc03
AVDD VOLTAGE (V)
CURRENT (µA)
3.53.43.33.23.13.02.92.8
0.2
0.4
0.6
0.8
1.0
0
2.7 3.6
V
DVDD
= 1.8V
T
A
= -45°C
T
A
= +85°C
T
A
= +25°C
ACTIVE SUPPLY CURRENT
vs. TEMPERATURE (MAX11208A)
MAX11208 toc04
TEMPERATURE (°C)
CURRENT (µA)
75553515-5-25
50
100
150
200
250
300
0
-45 95
TOTAL
V
AVDD
= 3.6V
V
DVDD
= 1.8V
ACTIVE SUPPLY CURRENT
vs. TEMPERATURE (MAX11208B)
MAX11208 toc05
TEMPERATURE (°C)
CURRENT (µA)
75553515-5-25
50
100
150
200
250
300
0
-45 95
TOTAL
V
AVDD
= 3.6V
V
DVDD
= 1.8V
SLEEP CURRENT vs. TEMPERATURE
(MAX11208A/MAX11208B)
MAX11208 toc06
TEMPERATURE (°C)
CURRENT (µA)
75553515-5-25
0.2
0.4
0.6
0.8
1.0
0
-45 95
V
AVDD
= 3.6V
V
DVDD
= 1.8V
V
AVDD
V
DVDD
TOTAL
DIGITAL ACTIVE CURRENT
vs. DVDD VOLTAGE
MAX11208 toc07
DVDD VOLTAGE (V)
CURRENT (µA)
3.43.22.8 3.02.0 2.2 2.4 2.61.8
50
60
70
80
90
100
110
120
130
40
1.6 3.6
V
AVDD
= 3.6V
T
A
= +85°C, +25°C, -45°C
MAX11208A
MAX11208B
DIGITAL SLEEP CURRENT vs. DVDD
VOLTAGE (MAX11208A/MAX11208B)
MAX11208 toc08
DVDD VOLTAGE (V)
CURRENT (µA)
3.33.12.92.72.52.32.11.9
0.5
1.0
1.5
2.0
2.5
3.0
0
1.7 3.5
V
AVDD
= 3.6V
T
A
= -45°C
T
A
= +25°C
T
A
= +85°C
INTERNAL OSCILLATOR FREQUENCY
vs. TEMPERATURE
MAX11208 toc09
TEMPERATURE (°C)
FREQUENCY (MHz)
75553515-5-25
2.1
2.2
2.3
2.4
2.5
2.6
2.0
-45 95
V
DVDD
= 1.8V
V
AVDD
= 3.0V
MAX11208A
MAX11208B