MAX11200 Datasheet, PDF (6/27 Pages) Maxim Integrated Products – 24-Bit, Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with GPIO

24-Bit, Single-Channel, Ultra-Low-Power,
Delta-Sigma ADCs with GPIO
Typical Operating Characteristics (continued)
(VAVDD = +3.6V, VDVDD = +1.8V, VREFP - VREFN = 2.5V; internal clock; TA = TMIN to TMAX, unless otherwise noted. Typical values
are at TA = +25NC.)
INTERNAL OSCILLATOR FREQUENCY
vs. TEMPERATURE
3.0
2.9 ^VAVDD ^{= 3.0V}
2.8
2.7
2.6
2.5
LINEF = 0
2.4
2.3
2.2
2.1
2.0
LINEF = 1
1.9
1.8
1.7
1.6
1.5
-45 -25 -5 15 35 55 75 95
TEMPERATURE (°C)
INTERNAL OSCILLATOR FREQUENCY
vs. AVDD VOLTAGE
3.0
2.9
2.8
2.7
2.6
2.5
LINEF = 0
2.4
2.3
2.2
2.1
2.0
LINEF = 1
1.9
1.8
1.7
1.6
1.5
2.70 2.85 3.00 3.15 3.30 3.45 3.60
AVDD VOLTAGE (V)
NOISE vs. INPUT VOLTAGE
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-2.5 -2.0 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 2.0 2.5
INPUT VOLTAGE (V)
LONG-TERM ADC READINGS
5
SHORTED INPUTS
4 _{RMS NOISE = 570nV}
3 TA = +25°C
2
1
0
-1
-2
-3
-4
-5
0 0.5 1.0 1.5 2.0 2.5 3.0
TIME (MINUTES)
INTEGRAL NONLINEARITY
vs. INPUT VOLTAGE
10
VIN(CM) = 1.8V
8
6
4
TA = +85°C _{TA = -45°C}
2
0
-2
TA = +25°C
-4
-6
-8
-10
-2.5 -2.0 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 2.0 2.5
INPUT VOLTAGE (V)
TUE vs. INPUT VOLTAGE
10
VIN(CM) = 1.8V
8
6
4
TA = -45°C
TA = +85°C
2
0
-2
-4
TA = +25°C
-6
-8
-10
-2.5 -2.0 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 2.0 2.5
INPUT VOLTAGE (V)
PSRR vs. FREQUENCY
(DATA RATE 120SPS)
0
PSRR vs. FREQUENCY
(DATA RATE 10SPS)
0
CMRR vs. FREQUENCY
0
-20
-20
-20
-40
-40
-40
-60
-60
-60
-80
AVDD
-100
DVDD
-120
-80
AVDD
-100
-120 ^DVDD
-80
120SPS
-100
-120
10SPS
-140
1
10 100 1000 10,000 100,000
FREQUENCY (Hz)
-140
1
10 100 1000 10,000 100,000
FREQUENCY (Hz)
-140
1
10 100 1000 10,000 100,000
FREQUENCY (Hz)
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