Data Sheet
Typical Performance Characteristics
(T
A
= T
Min
to T
Max
, AV
CC
= +5V, OV
DD
= +5V, ƒ
clk
= 250MHz, 50% duty cycle,
ƒ
IN
= 70MHz, dual channel mode; unless otherwise noted)
SNR, SINAD vs. Temperature
60
55
ƒ
IN
= 70.1 MHz
ƒ
S
= 250 MSPS
SNR
SINAD
THD vs. Temperature
-30
CDK1301
8-bit, 250 MSPS A/D Converter with Demuxed Outputs
-35
-40
SNR, SINAD (dB)
50
45
40
35
30
25
20
-50
-25
0
25
50
ƒ
IN
= 70.1 MHz
ƒ
S
= 250 MSPS
THD (dB)
75
100
-45
-50
-55
-60
-65
-70
-50
-25
0
25
50
75
100
Temperature (°C)
Temperature (°C)
SNR, SINAD vs. Duty Cycle
60
55
ƒ
IN
= 70.1 MHz
ƒ
S
= 250 MSPS
SNR
SINAD
SFDR, THD vs. Duty Cycle
-30
-35
ƒ
IN
= 70.1 MHz
ƒ
S
= 250 MSPS
SNR, SINAD (dB)
SFDR, THD (dB)
50
45
40
35
30
25
20
35
40
45
50
-40
-45
-50
-55
-60
-65
THD
SFDR
55
60
-70
35
40
45
50
55
60
Duty Cycle (%)
Duty Cycle (%)
SNR, SINAD vs. AV
cc
60
55
ƒ
IN
= 70.1 MHz
ƒ
S
= 250 MSPS
SNR
SINAD
THD vs. AV
CC
-30
-35
-40
ƒ
IN
= 70.1 MHz
ƒ
S
= 250 MSPS
REV 1A
SNR, SINAD (dB)
50
45
40
35
30
25
20
THD (dB)
-45
-50
-55
-60
-65
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5
-70
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5
Volts (V)
Volts (V)
©2008 CADEKA Microcircuits LLC
www.cadeka.com
7
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
