Datasheet

MAX11618–MAX11621/MAX11624/MAX11625
10-Bit, 300ksps ADCs
with FIFO and Internal Reference
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
DD
= 3V (MAX11619/MAX11621/MAX11625); V
DD
= 5V (MAX11618/MAX11620/MAX11624), f
SCLK
= 4.8MHz, C
LOAD
= 30pF,
T
A
= +25°C, unless otherwise noted.)
DIFFERENTIAL NONLINEARITY
vs. OUTPUT CODE
MAX11618 toc04
OUTPUT CODE (DECIMAL)
DNL (LSB)
768512256
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.5
0 1024
MAX11619/MAX11621/
MAX11625
f
SAMPLE
= 300ksps
THD vs. FREQUENCY
MAX11618 toc07
THD (dB)
-90
-80
-70
-60
-50
-100
FREQUENCY (kHz)
1001011k
MAX11618/MAX11620/
MAX11624
MAX11619/MAX11621/
MAX11625
SUPPLY CURRENT vs. SAMPLING RATE
MAX11618 toc08
I
VDD
(µA)
500
1000
1500
2000
2500
3000
0
SAMPLING RATE (ksps)
1001011k
MAX11618/MAX11620/
MAX11624
V
DD
= 5V
INTERNAL REFERENCE
EXTERNAL REFERENCE
SUPPLY CURRENT vs. SAMPLING RATE
MAX11618 toc09
I
VDD
(µA)
200
400
600
800
1000
1200
1400
1600
1800
0
SAMPLING RATE (ksps)
1001011k
MAX11619/MAX11621/
MAX11625
V
DD
= 3V
INTERNAL REFERENCE
EXTERNAL REFERENCE
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX11618 toc10
V
DD
(V)
5.20
5.154.80 4.85 4.90 5.00 5.054.95 5.10
1200
1400
1600
1800
2000
2200
2400
2600
1000
4.75 5.25
I
DD
(µA)
MAX11618/MAX11620/
MAX11624
f
SAMPLE
= 300ksps
EXTERNAL REFERENCE
INTERNAL REFERENCE
SINAD vs. FREQUENCY
MAX11618 toc05
FREQUENCY (kHz)
SINAD (dB)
1001011k
56
57
58
59
60
61
62
63
64
65
55
MAX11619/MAX11621/
MAX11625
MAX11618/MAX11620/
MAX11624
SFDR vs. FREQUENCY
MAX11618 toc06
SFDR (dB)
60
70
80
90
100
50
FREQUENCY (kHz)
1001011k
MAX11619/MAX11621/
MAX11625
MAX11618/MAX11620/
MAX11624