MAX1270BCAI Datasheet, PDF (7/20 Pages) Maxim Integrated Products – Multirange, +5V, 8-Channel, Serial 12-Bit ADCs

Multirange, +5V, 8-Channel,
Serial 12-Bit ADCs
Typical Operating Characteristics
(Typical Operating Circuit, V_DD = +5V; external reference mode, V_REF = +4.096V; 4.7µF at REF; external clock, f_CLK = 2MHz;
110ksps; T_A = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
25
SUPPLY CURRENT vs. TEMPERATURE
6.5
STANDBY SUPPLY CURRENT
vs. TEMPERATURE
750
650
20
6.3
INTERNAL
550
REFERENCE
15
6.1
450
10
5.9
350
250
EXTERNAL
5
5.7
REFERENCE
150
0
01234567
SUPPLY VOLTAGE (V)
5.5
-40
-15
10
35
60
85
TEMPERATURE (°C)
50
-40 -15 10
35
60
85
TEMPERATURE (°C)
FULL POWER-DOWN SUPPLY CURRENT
vs. TEMPERATURE
150
130
EXTERNAL
REFERENCE
110
90
INTERNAL
70
REFERENCE
50
-40 -15
10
35
60
85
TEMPERATURE (°C)
CHANNEL-TO-CHANNEL GAIN-ERROR
MATCHING vs. TEMPERATURE
0.8
0.7
0.6
UNIPOLAR MODE
0.5
0.4
0.3
BIPOLAR MODE
0.2
0.1
-40 -15
10
35
60
85
TEMPERATURE (°C)
NORMALIZED REFERENCE VOLTAGE
vs. TEMPERATURE
1.001
1.000
0.999
0.998
0.997
0.996
-40 -15
10
35
60
85
TEMPERATURE (°C)
INTEGRAL NONLINEARITY vs.
DIGITAL CODE
0.15
0.10
0.05
0
-0.05
-0.10
-0.15
0
819 1638 2457 3276 4095
DIGITAL CODE
CHANNEL-TO-CHANNEL OFFSET-ERROR
MATCHING vs. TEMPERATURE
0.35
BIPOLAR MODE
0.30
0.25
0.20
0.15
0.10
UNIPOLAR MODE
0.05
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
0
-20
-40
-60
-80
-100
-120
0
FTT PLOT
f_IN = 10kHz
f_SAMPLE = 110ksps
10k 20k 30k 40k 50k
FREQUENCY (Hz)
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