MAX1137LEUA Maxim Integrated, MAX1137LEUA Datasheet - Page 6

• Manufacturer Part Number: MAX1137LEUA
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1137LEUA

• Number Of Channels: 4/2
• Architecture: SAR
• Conversion Rate: 94.4 KSPs
• Resolution: 10 bit
• Input Type: Single-Ended/Differential
• Interface Type: I2C
• Operating Supply Voltage: 2.7 V to 3.6 V
• Number Of Converters: 1
• Voltage Reference: Internal 4.096 V

2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel, 2-Wire Serial 10-Bit ADCs
(V
ended, unipolar, T
6
DD
-0.1
-0.2
-0.3
800
750
700
650
600
550
500
450
400
350
300
800
750
700
650
600
550
500
450
400
350
300
250
200
0.3
0.2
0.1
_______________________________________________________________________________________
0
-40
= 3.3V (MAX1137/MAX1139), V
0
0
0
CONVERSION RATE (EXTERNAL CLOCK)
SUPPLY CURRENT vs. TEMPERATURE
INTERNAL REFERENCE
INTERNAL REFERENCE
EXTERNAL REFERENCE
EXTERNAL REFERENCE
A) INTERNAL REFERENCE ALWAYS ON
B) EXTERNAL REFERENCE
10
-25
AVERAGE SUPPLY CURRENT vs.
DIFFERENTIAL NONLINEARITY
200
20 30 40
-10
CONVERSION RATE (ksps)
DIGITAL OUTPUT CODE
vs. DIGITAL CODE
TEMPERATURE (°C)
400
5
A
= +25°C, unless otherwise noted.)
20
50
600
SETUP BYTE
EXT REF: 10111011
INT REF: 11011011
60
35
MAX1138/1136
MAX1139/1137
MAX1138/1136
MAX1139/1137
70
800
50
MAX1138
80
65
1000
90
80
A
B
DD
100
= 5V (MAX1136/MAX1138), f
1.0010
1.0008
1.0006
1.0004
1.0002
1.0000
0.9998
0.9996
0.9994
0.9992
0.9990
-0.1
-0.2
-0.3
-0.4
-0.5
0.6
0.5
0.4
0.3
0.2
0.1
0.5
0.4
0.3
0.2
0.1
0
0
-40
2.7
0
SDA = SCL = V
NORMALIZED TO REFERENCE VALUE
AT +25°C
-25
INTERNAL REFERENCE VOLTAGE
SHUTDOWN SUPPLY CURRENT
200
3.2
INTEGRAL NONLINEARITY
-10
vs. SUPPLY VOLTAGE
vs. TEMPERATURE
DIGITAL OUTPUT CODE
vs. DIGITAL CODE
TEMPERATURE (°C)
INPUT VOLTAGE (V)
DD
3.7
400
5
MAX1139
MAX1138
20
Typical Operating Characteristics
4.2
600
SCL
35
= 1.7MHz, external clock, f
4.7
50
800
65
5.2
1000
80
1.00010
1.00008
1.00006
1.00004
1.00002
1.00000
0.99998
0.99996
0.99994
0.99992
0.99990
-100
-120
-140
-160
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
-20
-40
-60
-80
0
0
2.7
-40
0
MAX1138
NORMALIZED REFERENCE VOLTAGE
MAX1139/MAX1137,
NORMALIZED TO
REFERENCE VALUE AT
V
MAX1139
3.0
DD
-25
SHUTDOWN SUPPLY CURRENT
= 3.3V
SAMPLE
10k
3.3 3.6 3.9
-10
vs. SUPPLY VOLTAGE
vs. TEMPERATURE
TEMPERATURE (°C)
FREQUENCY (Hz)
5
20k
FFT PLOT
MAX1138/MAX1136,
NORMALIZED TO
REFERENCE VALUE AT
V
= 94.4ksps, single-
V
DD
DD
20
= 5V
4.2 4.5 4.8 5.1 5.4
(V)
f
f
SAMPLE
IN
30k
35
= 10kHz
50
= 94.4ksps
40k
65
80
50k