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ManualsBrandsMAXIM INTEGRATED ManualsData collecting ICsData acquisition IC - AD converter (ADC) External , Internal TSSOP 20
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MAX1146–MAX1149
Multichannel, True-Differential,
Serial, 14-Bit ADCs
_______________________________________________________________________________________ 7
INL vs. OUTPUT CODE
MAX1146 toc01
OUTPUT CODE
INL (LSB)
1228881924096
-1.0
-0.5
0
0.5
1.0
1.5
-1.5
0 16384
DNL vs. OUTPUT CODE
MAX1146 toc02
OUTPUT CODE
DNL (LSB)
1228881924096
-1.0
-0.5
0
0.5
1.0
1.5
-1.5
0 16384
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(MAX1147/MAX1149)
MAX1146 toc03
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
3.33.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
2.7 3.6
INTERNAL REFERENCE
EXTERNAL REFERENCE
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(MAX1146/MAX1148)
MAX1146 toc04
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
5.205.155.05 5.104.85 4.90 4.95 5.004.80
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
4.75 5.25
INTERNAL REFERENCE
EXTERNAL REFERENCE
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE (MAX1147/MAX1149)
MAX1146 toc05
SUPPLY VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT (µA)
3.53.43.2 3.32.9 3.0 3.12.8
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0
2.7 3.6
SUPPLY CURRENT
vs. CONVERSION RATE
MAX1146 toc07
CONVERSION RATE (ksps)
SUPPLY CURRENT (µA)
1001010.1
200
400
600
800
1000
1200
0
0.01 1000
FAST POWER-DOWN
FULL
POWER-DOWN
SUPPLY CURRENT vs. TEMPERATURE
MAX1146 toc08
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
603510-15
0.5
1.0
1.5
2.0
2.5
0
-40 85
MAX1146/MAX1148 INTERNAL REFERENCE
MAX1147/MAX1149 INTERNAL REFERENCE
MAX1146/MAX1148 EXTERNAL REFERENCE
MAX1147/MAX1149 EXTERNAL REFERENCE
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX1146 toc09
TEMPERATURE (°C)
SHUTDOWN SUPPLY CURRENT (µA)
603510-15
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0
-40 85
MAX1146/MAX1148
MAX1147/MAX1149
Typical Operating Characteristics
(V
DD
= +5.0V (MAX1146/MAX1148), V
DD
= +3.3V (MAX1147/MAX1149), SHDN = V
DD
, V
COM
= 0, f
SCLK
= 2.1MHz, external clock
(50% duty cycle), 18 clocks/conversion (116ksps), V
REFADJ
= V
DD
, external +4.096V reference at REF (MAX1146/MAX1148), exter-
nal +2.500V reference at REF (MAX1147/MAX1149), C
REF
= 2.2µF, C
LOAD
= 50pF, T
A
= +25°C, unless otherwise noted.)
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE (MAX1146/MAX1148)
MAX1146 toc06
SUPPLY VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT (µA)
5.155.054.954.85
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0
4.75 5.25