
MAX109
8-Bit, 2.2Gsps ADC with Track/Hold Amplifier
and 1:4 Demultiplexed LVDS Outputs
______________________________________________________________________________________
11
SMALL-SIGNAL INPUT BANDWIDTH
vs. ANALOG INPUT FREQUENCY
(A
IN
= -20dBFS)
ANALOG INPUT FREQUENCY (MHz)
GAIN (dB)
MAX109 toc32
-6
-5
-4
-3
-2
-1
0
1
10 100 1000 10,000
REFERENCE VOLTAGE vs. V
CC
A/V
CC
I
V
CC
A/V
CC
I (V)
V
REFOUT
(V)
MAX109 toc33
4.75 4.85 4.95 5.05 5.15 5.25
2.4925
2.4935
2.4945
2.4955
2.4965
2.4975
2.4985
2.4995
V
CC
A AND V
CC
I
CONNECTED TOGETHER
V
CC
O = 3.3V
V
CC
D = 5V
V
EE
= -5V
ANALOG/DIGITAL POWER DISSIPATION
vs. V
CC
A/V
CC
I/V
CC
D/-V
EE
(f
IN
= 1600.1550MHz, A
IN
= -1dBFS)
V
CC
A/V
CC
I/V
CC
D/-V
EE
(V)
POWER DISSIPATION (mW)
MAX109 toc34
4.75 4.85 4.95 5.05 5.15 5.25
5300
5600
5900
6200
6500
6800
V
CC
O = 3.3V
V
CC
A = V
CC
I = V
CC
D = 4.75V to 5V
V
EE
= -4.75V to -5.25V
OUTPUT DRIVER POWER DISSIPATION
vs. V
CC
O (f
IN
= 1600.1550MHz, A
IN
= -1dBFS)
V
CC
O (V)
POWER DISSIPATION (mW)
MAX109 toc35
3.0 3.1 3.2 3.3 3.4 3.5 3.6
650
700
750
800
850
900
V
CC
O = 3V to 3.6V
V
CC
A = V
CC
I = V
CC
D = 5V
V
EE
= -5V
SNR, SINAD vs. TEMPERATURE
(f
IN
= 1600.1550MHz, A
IN
= -1dBFS)
SNR, SINAD (dB)
MAX109 toc36
-40 -15 10 35 60 85
[-22.1] [7.5] [37.1] [66.7] [96.3] [125.9]
35
37
39
41
43
45
SNR
SINAD
TEMPERATURE (°C)
[DIE TEMPERATURE (°C)]
ENOB vs. TEMPERATURE
(f
IN
= 1600.1550MHz, A
IN
= -1dBFS)
TEMPERATURE (°C)
[DIE TEMPERATURE (°C)]
ENOB (Bits)
MAX109 toc37
-40 -15 10 35 60 85
5.50
5.75
6.00
6.25
6.50
6.75
7.00
7.25
7.50
[-22.1] [7.5] [37.1] [66.7] [96.3] [125.9]
-THD, SFDR vs. TEMPERATURE
(f
IN
= 1600.1550MHz, A
IN
= -1dBFS)
-THD, SFDR (dBc)
MAX109 toc38
-40 -15 10 35 60 85
38
40
42
44
46
48
50
52
54
TEMPERATURE (°C)
[DIE TEMPERATURE (°C)]
[-22.1] [7.5] [37.1] [66.7] [96.3] [125.9]
SFDR
-THD
HD2, HD3 vs. TEMPERATURE
(f
IN
= 1600.1550MHz, A
IN
= -1dBFS)
HD2, HD3 (dBc)
MAX109 toc39
-40 -15 10 35 60 85
-56
-54
-52
-50
-48
-46
-44
TEMPERATURE (°C)
[DIE TEMPERATURE (°C)]
[-22.1] [7.5] [37.1] [66.7] [96.3] [125.9]
HD2
HD3
FULL-POWER INPUT BANDWIDTH
vs. ANALOG INPUT FREQUENCY (A
IN
= -1dBFS)
ANALOG INPUT FREQUENCY (MHz)
GAIN (dB)
MAX109 toc31
-6
-5
-4
-3
-2
-1
0
1
10 100 1000 10,000
Typical Operating Characteristics (continued)
(V
CC
A = V
CC
I = V
CC
D = 5V, V
CC
O = 3.3V, V
EE
= -5V, GNDA = GNDI = GNDD = GNDO = GNDR = 0V, f
CLK
= 2.21184Gsps, analog
input amplitude at -1dBFS differential, clock input amplitude 10dBm differential, digital output pins differential R
L
= 100Ω. Typical
values are at T
J
= +105°C, unless otherwise noted.)
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