Datasheet

6 Maxim Integrated
18-Bit, Single-Channel, Ultra-Low-Power, Delta-
Sigma ADCs with Programmable Gain and GPIO
MAX11209/MAX11211
Typical Operating Characteristics (continued)
(V
AVDD
= 3.6V, V
DVDD
= 1.8V, V
REFP
- V
REFN
= 2.5V; internal clock; T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are
at T
A
=
+25NC.)
CMRR vs. FREQUENCY
MAX11209/11 toc16
FREQUENCY (Hz)
CMRR (dB)
10,000100010010
-120
-100
-80
-60
-40
-20
0
-140
1 100,000
10sps
120sps
PSRR vs. FREQUENCY
(DATA RATE 10sps)
MAX11209/11 toc15
FREQUENCY (Hz)
PSRR (dB)
10,000100010010
-120
-100
-80
-60
-40
-20
0
-140
1 100,000
DVDD
AVDD
PSRR vs. FREQUENCY
(DATA RATE 120sps)
MAX11209/11 toc14
FREQUENCY (Hz)
PSRR (dB)
10,000100010010
-120
-100
-80
-60
-40
-20
0
-140
1 100,000
DVDD
AVDD
TUE vs. INPUT VOLTAGE
MAX11209/11 toc13
INPUT VOLTAGE (V)
INL (ppmFSR)
2.01.50.5 1.0-1.5 -1.0 -0.5 0-2.0
-8
-6
-4
-2
0
2
4
6
8
10
-10
-2.5 2.5
T
A
= +85°C
T
A
= -45°C
T
A
= +25°C
VIN(CM) = 1.8V
INTEGRAL NONLINEARITY
vs. INPUT VOLTAGE
MAX11209/11 toc12
INPUT VOLTAGE (V)
INL (ppmFSR)
2.01.50.5 1.0-1.5 -1.0 -0.5 0-2.0
-8
-6
-4
-2
0
2
4
6
8
10
-10
-2.5 2.5
T
A
= +85°C
T
A
= -45°C
T
A
= +25°C
VIN(CM) = 1.8V
INTERNAL OSCILLATOR FREQUENCY
vs. AVDD VOLTAGE
MAX11209/11 toc11
AVDD VOLTAGE (V)
FREQUENCY (MHz)
3.453.15 3.303.002.85
1.7
1.6
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
1.5
2.70 3.60
LINEF = 1
LINEF = 0
INTERNAL OSCILLATOR FREQUENCY
vs. TEMPERATURE
MAX11209/11 toc10
TEMPERATURE (°C)
FREQUENCY (MHz)
755515 35-5-25
1.7
1.6
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
1.5
-45 95
V
AVDD
= 3.0V
LINEF = 1
LINEF = 0