MAX1032_11 Datasheet, PDF (9/32 Pages) Maxim Integrated Products – 8- and 4-Channel, ±3 x VREF Multirange Inputs, Serial 14-Bit ADCs

8- and 4-Channel, ±3 x V_REF
Multirange Inputs, Serial 14-Bit ADCs
Typical Operating Characteristics (continued)
(V_AVDD1 = V_AVDD2 = V_DVDD = V_DVDD0 = 5V, V_AGND1 = V_DGND = V_DGNDO = V_AGND2 = V_AGND3 = 0V, f_CLK = 3.5MHz (50% duty
cycle), external clock mode, V_REF = 4.096V (external reference operation), REFCAP = AVDD1, maximum single-ended bipolar input
range (±3 x V_REF), C_DOUT = 50pF, C_SSTRB = 50pF; unless otherwise noted.)
EXTERNAL REFERENCE INPUT CURRENT
vs. EXTERNAL REFERENCE INPUT VOLTAGE
GAIN DRIFT vs. TEMPERATURE
85
0.10
0.08
83
0.06
0.04
±3 x V_REF BIPOLAR RANGE
81
0.02
0
OFFSET DRIFT vs. TEMPERATURE
1.0
0.8
0.6
±3 x V_REF
4
BIPOLAR
0.4
0.2
0
79
-0.02
-0.2
77
-0.04
-0.06
±3 x V_REF
4
BIPOLAR RANGE
-0.4
-0.6
+3 x V_REF BIPOLAR
-0.08
-0.8
75
3.8
3.9
4.0
4.1
4.2
EXTERNAL REFERENCE VOLTAGE (V)
-0.10
-40 -15
10
35
60
85
TEMPERATURE (°C)
-1.0
-40 -15
10
35
60
85
TEMPERATURE (°C)
CHANNEL-TO-CHANNEL ISOLATION
vs. INPUT FREQUENCY
0
f_SAMPLE = 115ksps
-20
±3 x V_REF BIPOLAR RANGE
CH0 TO CH2
-40
-60
-80
-100
-120
1
10
100
1000
FREQUENCY (kHz)
10,000
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
0
-10
f_SAMPLE = 115ksps
±3 x V_REF BIPOLAR RANGE
-20
-30
-40
-50
-60
-70
-80
-90
-100
1
10
100
1000
FREQUENCY (kHz)
10,000
INTEGRAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
1.0
f_SAMPLE = 115ksps
±3 x V_REF BIPOLAR RANGE
0.5
0
-0.5
-1.0
0
4096
8192 12,288
DIGITAL OUTPUT CODE
16,383
DIFFERENTIAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
1.0
f_SAMPLE = 115ksps
±3 x V_REF BIPOLAR RANGE
0.5
FFT AT 5kHz
0
f_SAMPLE = 115ksps
-20
f_{IN(SINE WAVE)} = 5kHz
±3 x V_REF BIPOLAR RANGE
-40
-60
0
-80
-0.5
-100
-120
-1.0
0
4096
8192 12,288
DIGITAL OUTPUT CODE
16,383
-140
0
10 20
30 40
50
FREQUENCY (kHz)
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