
MAX108
±5V, 1.5Gsps, 8-Bit ADC with
On-Chip 2.2GHz Track/Hold Amplifier
_______________________________________________________________________________________
7
35
100 20001000
SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT FREQUENCY
(SINGLE-ENDED ANALOG INPUT DRIVE)
55
50
60
45
40
65
70
MAX108 toc07
ANALOG INPUT FREQUENCY (MHz)
SFDR (dB)
10
-1dBFS
-12dBFS
-6dBFS
35
100 20001000
SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT FREQUENCY
(DIFFERENTIAL ANALOG INPUT DRIVE)
55
50
60
45
40
65
70
MAX108 toc08
ANALOG INPUT FREQUENCY (MHz)
SFDR (dB)
10
-1dBFS
-12dBFS
-6dBFS
100 1000 1500
EFFECTIVE NUMBER OF BITS
vs. CLOCK FREQUENCY
(f
IN
= 250MHz, 1dBFS)
MAX108 toc09
CLOCK FREQUENCY (MHz )
ENOB (Bits)
8.00
6.50
6.75
7.00
7.25
7.50
7.75
8.00
6.50
-12 -10
-6
-2 2 6-8 -4 0 4 108
EFFECTIVE NUMBER OF BITS vs.
CLOCK POWER
(f
IN
= 250MHz, -1dBFS)
6.75
7.00
7.25
7.50
7.75
MAX108toc10
CLOCK POWER (dBm) PER SIDE
ENOB (Bits)
SINGLE-ENDED CLOCK DRIVE
DIFFERENTIAL CLOCK DRIVE
47
51
49
57
55
53
59
61
65
63
67
-12 -10 -8 -6 -4 -2 0 2 4 8610
SPURIOUS-FREE DYNAMIC RANGE
vs. CLOCK POWER
(f
IN
= 250MHz, -1dBFS)
MAX108toc13
CLOCK POWER (dBm) PER SIDE
SFDR (dB)
DIFFERENTIAL CLOCK DRIVE
SINGLE-ENDED CLOCK DRIVE
6.50
7.25
7.00
6.75
7.50
7.75
8.00
4.5 4.94.7 5.1 5.3 5.5
EFFECTIVE NUMBER OF BITS
vs. V
CC
I = V
CC
A = V
CC
D
(f
IN
= 250MHz, -1dBFS)
MAX108-11
V
CC
(V)
ENOB (Bits)
6.50
7.25
7.00
6.75
7.50
7.75
8.00
-5.5 -5.1-5.3 -4.9 -4.7 -4.5
EFFECTIVE NUMBER OF BITS vs. V
EE
(f
IN
= 250MHz, -1dBFS)
MAX108-12
V
EE
(V)
ENOB (Bits)
57
59
58
61
60
63
62
64
66
65
67
4.5 4.7 4.9 5.1 5.3 5.5
SPURIOUS-FREE DYNAMIC RANGE
vs. V
CC
I = V
CC
A = V
CC
D
(f
IN
= 250MHz, -1dBFS)
MAX108-14
V
CC
(V)
SFDR (dB)
57
59
58
61
60
63
62
64
66
65
67
-5.5 -5.3 -5.1 -4.9 -4.7 -4.5
SPURIOUS-FREE DYNAMIC RANGE vs. V
EE
(f
IN
= 250MHz, -1dBFS)
MAX108-15
V
EE
(V)
SFDR (dB)
Typical Operating Characteristics (continued)
(V
CC
A = V
CC
I = V
CC
D = +5V, V
EE
= -5V, V
CC
O = +3.3V, REFIN connected to REFOUT, f
S
= 1.5Gsps, T
A
= +25°C, unless otherwise
noted.)
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