MAX11202_12 Datasheet, PDF (7/14 Pages) Maxim Integrated Products – 24-Bit, Single-Channel, Ultra-Low-Power, Delta Sigma ADC with 2-Wire Serial Interface

MAX11202
24-Bit, Single-Channel, Ultra-Low-Power, Delta
Sigma ADC with 2-Wire Serial Interface
Typical Operating Characteristics (continued)
(VAVDD = 3.6V, VDVDD = 1.8V, VREFP - VREFN = AVDD; internal clock; TA = TMIN to TMAX, unless otherwise specified. Typical values
are at TA = +25NC.)
INTEGRAL NONLINEARITY vs. INPUT
VOLTAGE (MAX11202A/MAX11202B)
10
8
VAVDD = 3.0V
VDVDD = 1.8V
6 VREF = 2.5V
4 ^{VIN(CM) = 1.5V}
2
TA = +85°C
TA = +25°C
0
-2
-4
TA = -45°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
(MAX11202B)
0
FULL-SCALE ERROR vs. TEMPERATURE
(MAX11202A/MAX11202B)
10
8
VREF = 2.5V
6
+FS ERROR
4
2
0
-2
-4
-6
-FS ERROR
-8
-10
-45 -25 -5 15 35 55 75
TEMPERATURE (°C)
CMRR vs. FREQUENCY
(MAX11202A/MAX11202B)
0
PSRR vs. FREQUENCY
(MAX11202A)
0
-20
-40
-60
-80
VAVDD
-100
VDVDD
-120
-140
1
10 100 1k 10k 100k
FREQUENCY (Hz)
NORMAL-MODE FREQUENCY RESPONSE
(MAX11202A)
0
-20
-20
-20
-40
-40
-40
-60
-60
-60
-80
VAVDD
-100
-80
-80
MAX11202A
-100
-100
-120
VDVDD
-120
MAX11202B
-120
-140
1
10 100 1k 10k 100k
FREQUENCY (Hz)
-140
1
10 100 1k 10k 100k
FREQUENCY (Hz)
-140
1
10
100
1k
FREQUENCY (Hz)
NORMAL-MODE FREQUENCY RESPONSE
(MAX11202B)
0
NORMAL MODE REJECTION OF 50Hz TO 60Hz
(MAX11202B)
0
-20
-20
-40
-40
-60
-60
-80
-80
-100
-100
-120
-120
-140
1
10
100
1k
FREQUENCY (Hz)
-140
40 45 50 55 60 65 70
FREQUENCY (Hz)
Maxim Integrated
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