MAX11208 Datasheet, PDF (5/14 Pages) Maxim Integrated Products – 20-Bit, Single-Channel, Ultra-Low-Power, Delta-Sigma ADC with 2-Wire Serial Interface

20-Bit, Single-Channel, Ultra-Low-Power,
Delta-Sigma ADC with 2-Wire Serial Interface
Typical Operating Characteristics
(VAVDD = 3.6V, VDVDD = 1.8V, VREFP - VREFN = AVDD; internal clock; TA = TMIN to TMAX, unless otherwise specified. Typical values
are at TA = +25NC.)
ANALOG ACTIVE CURRENT
vs. AVDD VOLTAGE (MAX11208A)
240
VDVDD = 1.8V
220
TA = +85°C
200
180
TA = +25°C
160
TA = -45°C
140
120
100
2.70 2.85 3.00 3.15 3.30 3.45 3.60
AVDD VOLTAGE (V)
ACTIVE SUPPLY CURRENT
vs. TEMPERATURE (MAX11208A)
300
250
TOTAL
200
V_AVDD = 3.6V
150
100
VDVDD = 1.8V
50
0
-45 -25 -5 15 35 55 75 95
TEMPERATURE (°C)
DIGITAL ACTIVE CURRENT
vs. DVDD VOLTAGE
130
VAVDD = 3.6V
120 _{TA = +85°C, +25°C, -45°C}
110
100
MAX11208A
90
80
70
MAX11208B
60
50
40
1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
DVDD VOLTAGE (V)
ANALOG ACTIVE CURRENT
vs. AVDD VOLTAGE (MAX11208B)
240
VDVDD = 1.8V
220
TA = +85°C
200
180
TA = +25°C
160
TA = -45°C
140
120
100
2.70 2.85 3.00 3.15 3.30 3.45 3.60
AVDD VOLTAGE (V)
ACTIVE SUPPLY CURRENT
vs. TEMPERATURE (MAX11208B)
300
250
TOTAL
200
VAVDD = 3.6V
150
100
VDVDD = 1.8V
50
0
-45 -25 -5 15 35 55 75 95
TEMPERATURE (°C)
DIGITAL SLEEP CURRENT vs. DVDD
VOLTAGE (MAX11208A/MAX11208B)
3.0
VAVDD = 3.6V
2.5
TA = -45°C
2.0
TA = +25°C
1.5
1.0
TA = +85°C
0.5
0
1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5
DVDD VOLTAGE (V)
ANALOG SLEEP CURRENT vs. AVDD
VOLTAGE (MAX11208A/MAX11208B)
1.0
VDVDD = 1.8V
0.8
0.6
0.4
TA = -45°C
0.2
TA = +85°C
TA = +25°C
0
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6
AVDD VOLTAGE (V)
SLEEP CURRENT vs. TEMPERATURE
(MAX11208A/MAX11208B)
1.0
VAVDD = 3.6V
VDVDD = 1.8V
0.8
0.6
0.4
0.2
VAVDD
VDVDD TOTAL
0
-45 -25 -5 15 35 55 75 95
TEMPERATURE (°C)
INTERNAL OSCILLATOR FREQUENCY
vs. TEMPERATURE
2.6
VDVDD = 1.8V
2.5 ^{VAVDD = 3.0V}
MAX11208A
2.4
2.3
MAX11208B
2.2
2.1
2.0
-45 -25 -5 15 35 55 75 95
TEMPERATURE (°C)
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