Datasheet

MAX1117/MAX1118/MAX1119
Single-Supply, Low-Power,
2-Channel, Serial 8-Bit ADCs
_______________________________________________________________________________________ 5
Typical Operating Characteristics (continued)
(V
DD
= +3V (MAX1117), V
DD
= +5V (MAX1119), V
DD
= V
REF
= +3V (MAX1118), f
SCLK
= 5MHz, f
SAMPLE
= 100ksps, C
LOAD
= 100pF,
T
A
= +25°C, unless otherwise noted.)
0.1
0.01 0.1 1 10 100
MAX1117/MAX1119
SUPPLY CURRENT vs. CONVERSION RATE
1.0
MAX1117/18/19 toc07
CONVERSION (ksps)
SUPPLY CURRENT (μA)
100.0
10.0
MAX1119
V
DD
= +5V
MAX1117
V
DD
= +3V
0
100
50
150
200
2.5 3.5 4.5 5.5
MAX1117/MAX1119 SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX1117/18/19 toc08
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (μA)
D
OUT
= 00000000
V
DD
= V
DIGITAL INPUTS
MAX1117
MAX1119
0
100
50
150
200
-40 -15 3510 60 85
MAX1117/MAX1119
SUPPLY CURRENT vs. TEMPERATURE
MAX1117/18/19 toc09
TEMPERATURE (V)
SUPPLY CURRENT (μA)
D
OUT
= 00000000
V
DD
= V
DIGITAL INPUTS
MAX1117
V
DD
= +3V
MAX1119
V
DD
= +5V
5.0
5.2
5.3
5.1
5.4
5.5
2.5 3.5 4.5 5.5
CONVERSION TIME
vs. SUPPLY VOLTAGE
MAX1117/18/19 toc11
SUPPLY VOLTAGE (V)
CONVERSION TIME (μs)
5.0
5.2
5.3
5.1
5.4
5.5
-40 -15 10 35 60 85
CONVERSION TIME
vs. TEMPERATURE
MAX1117/18/19 toc12
TEMPERATURE (
°
C)
CONVERSION TIME (μs)
V
DD
= +3V
V
DD
= +5V
-120
-80
-100
-60
-40
-20
0
0 20k10k 30k 40k 50k
FFT PLOT
MAX1117/18/19 toc13
ANALOG INPUT FREQUENCY (Hz)
AMPLITUDE (dB)
0
-0.2
-0.4
0.2
0.4
2.5 4.53.5 5.5
MAX1118
GAIN ERROR vs. SUPPLY VOLTAGE
MAX1117/18/19 toc14
SUPPLY VOLTAGE (V)
GAIN ERROR (LSB)
V
REF
= 2.048V
-0.5
-0.2
-0.3
-0.4
-0.1
0
0.1
0.2
0.3
0.4
0.5
-40 10-15 356085
MAX1118
GAIN ERROR vs. TEMPERATURE
MAX1117/18/19 toc15
TEMPERATURE (°C)
GAIN ERROR (LSB)
V
DD
= +3V
V
REF
= 2.048V
-1.0
-0.6
-0.4
-0.8
-0.2
0
14532
MAX1118
GAIN ERROR vs. REFERENCE VOLTAGE
MAX1117/18/19 toc16
REFERENCE VOLTAGE (V)
GAIN ERROR (LSB)
V
DD
= +5.5V