Datasheet

MAX1178/MAX1188
16-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
_______________________________________________________________________________________ 5
INL vs. CODE
MAX1178/88 toc01
-2.5
-1.5
-2.0
-0.5
-1.0
0.5
0
1.0
2.0
1.5
2.5
INL (LSB)
0 20,000 30,000 40,00010,000 50,000 60,000
CODE
DNL vs. CODE
MAX1178/88 toc02
-2.5
-1.5
-2.0
-0.5
-1.0
0.5
0
1.0
2.0
1.5
2.5
DNL (LSB)
0 20,00010,000 40,000 50,000 60,00030,000
CODE
4.40
4.50
4.45
4.60
4.55
4.75
4.70
4.65
4.80
-40 0-20 20 40 60
80
SUPPLY CURRENT (AV
DD
+ DV
DD
)
vs. TEMPERATURE
MAX1178/88 toc03
TEMPERATURE (
°
C)
SUPPLY CURRENT (mA)
5.25V
5.0V
4.75V
f
SAMPLE
= 135ksps
SHUTDOWN MODE
BETWEEN CONVERSIONS
SUPPLY CURRENT (AV
DD
+ DV
DD
)
vs. SAMPLE RATE
MAX1178/88 toc04
SAMPLE RATE (ksps)
SUPPLY CURRENT (mA)
1001010.1
0.001
0.01
0.1
1
10
0.0001
0.01 1000
V
AIN
= 0V
STANDBY MODE
SHUTDOWN MODE
0
1.5
1.0
0.5
2.5
2.0
4.5
4.0
3.5
3.0
5.0
-40 -20 0 20 40 60 80
SHUTDOWN CURRENT (AV
DD
+ DV
DD
)
vs. TEMPERATURE
MAX1178/88 toc05
TEMPERATURE (
°
C)
SHUTDOWN SUPPLY CURRENT (µA)
NO CONVERSIONS
-10
-4
-6
-8
0
-2
8
6
4
2
10
-40 -20 0 20 40 60 80
OFFSET ERROR vs. TEMPERATURE
MAX1178/88 toc06
TEMPERATURE (
°
C)
OFFSET ERROR (mV)
MAX1188
MAX1178
-0.20
-0.10
-0.15
0
-0.05
0.15
0.10
0.05
0.20
-40 0-20 20406080
GAIN ERROR vs. TEMPERATURE
MAX1178/88 toc07
TEMPERATURE (°C)
GAIN ERROR (%FSR)
4.056
4.076
4.066
4.096
4.086
4.126
4.116
4.106
4.136
-40 0-20 20 40 60 80
INTERNAL REFERENCE
vs. TEMPERATURE
MAX1178/88 toc08
TEMPERATURE (°C)
INTERNAL REFERENCE (V)
-180
-140
-160
-80
-100
-120
-20
-40
-60
0
0203010 40 50 60
FFT AT 1kHz
MAX1178/88 toc09
FREQUENCY (kHz)
MAGNITUDE (dB)
f
SAMPLE
= 131ksps
Typical Operating Characteristics
(Typical Operating Circuit, AV
DD
= DV
DD
= +5V, external reference = +4.096V, C
REF
= 10µF, C
REFADJ
= 0.1µF, V
REFADJ
= AV
DD
,
C
LOAD
= 20pF. Typical values are at T
A
= +25°C, unless otherwise noted.)