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MAX1146BCUP+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P25
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
MAX1146–MAX1149
Multichannel, True-Differential,
Serial, 14-Bit ADCs
8 _______________________________________________________________________________________
REFERENCE VOLTAGE vs. SUPPLY VOLTAGE
(MAX1146/MAX1148)
MAX1146 toc10
SUPPLY VOLTAGE (V)
REFERENCE VOLTAGE (V)
5.155.054.85 4.95
4.0945
4.0950
4.0955
4.0960
4.0965
4.0970
4.0975
4.0980
4.0940
4.75 5.25
REFERENCE VOLTAGE vs. SUPPLY VOLTAGE
(MAX1147/MAX1149)
MAX1146 toc11
SUPPLY VOLTAGE (V)
REFERENCE VOLTAGE (V)
3.33.0
2.4985
2.4990
2.4995
2.5000
2.5005
2.5010
2.5015
2.5020
2.4980
2.7 3.6
REFERENCE VOLTAGE vs. TEMPERATURE
(MAX1146/MAX1148)
MAX1146 toc12
TEMPERATURE (°C)
REFERENCE VOLTAGE (V)
603510-15
4.091
4.092
4.093
4.094
4.095
4.096
4.097
4.098
4.099
4.100
4.090
-40 85
REFERENCE VOLTAGE vs. TEMPERATURE
(MAX1147/MAX1149)
MAX1146 toc13
TEMPERATURE (°C)
REFERENCE VOLTAGE (V)
603510-15
2.498
2.499
2.500
2.501
2.502
2.503
2.497
-40 85
REFERENCE BUFFER POWER-UP DELAY
vs. TIME IN SHUTDOWN
MAX1146 toc14
TIME IN SHUTDOWN (s)
DELAY (µs)
10.10.01
500
1000
1500
2000
2500
0
0.001 10
C
REF
= 4.7µF
C
REFADJ
= 0.01µF
FFT PLOT
MAX1146 toc15
FREQUENCY (Hz)
AMPLITUDE (dB)
50004000300020001000
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
-120
0
f
IN
= 1kHz
f
SAMPLE
= 116ksps
V
DD
= 5V/3V
EFFECTIVE NUMBER OF BITS
vs. FREQUENCY
MAX1146 toc16
FREQUENCY (kHz)
EFFECTIVE NUMBER OF BITS
4637281910
12.1
12.2
12.3
12.4
12.5
12.6
12.7
12.8
12.9
13.0
12.0
155
Typical Operating Characteristics (continued)
(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.)
MAX1146–MAX1149
Multichannel, True-Differential,
Serial, 14-Bit ADCs
_______________________________________________________________________________________ 9
GAIN ERROR vs. SUPPLY VOLTAGE
(MAX1147/MAX1149)
MAX1146 toc19
SUPPLY VOLTAGE (V)
GAIN ERROR (LSB)
3.33.0
-4
-2
0
2
4
6
-6
2.7 3.6
GAIN ERROR vs. SUPPLY VOLTAGE
(MAX1146/MAX1148)
MAX1146 toc20
SUPPLY VOLTAGE (V)
GAIN ERROR (LSB)
5.155.054.85 4.95
-4
-2
0
2
4
6
-6
4.75 5.25
CHANNEL-TO-CHANNEL GAIN MATCHING
vs. SUPPLY VOLTAGE (MAX1147/MAX1149)
MAX1146 toc21
SUPPLY VOLTAGE (V)
GAIN MATCHING (LSB)
3.33.0
-4
-2
0
2
4
6
-6
2.7 3.6
CHANNEL-TO-CHANNEL GAIN MATCHING
vs. SUPPLY VOLTAGE (MAX1146/MAX1148)
XMAX1146 toc22
SUPPLY VOLTAGE (V)
GAIN MATCHING (LSB)
5.155.054.954.85
-4
-2
0
2
4
6
-6
4.75 5.25
Typical Operating Characteristics (continued)
(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.)
OFFSET ERROR vs. SUPPLY VOLTAGE
(MAX1147/MAX1149)
MAX1146 toc17
SUPPLY VOLTAGE (V)
OFFSET ERROR (LSB)
3.33.0
-4
-2
0
2
4
6
-6
2.7 3.6
OFFSET ERROR vs. SUPPLY VOLTAGE
(MAX1146/MAX1148)
MAX1146 toc18
SUPPLY VOLTAGE (V)
OFFSET ERROR (LSB)
5.155.054.954.85
-7
-4
-5
-6
-2
-3
-1
0
-8
4.75 5.25
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P25

MAX1146BCUP+T

Mfr. #:
Buy MAX1146BCUP+T
Manufacturer:
Maxim Integrated
Description:
IC ADC 14BIT 116KSPS 20-TSSOP
Lifecycle:
New from this manufacturer.
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