
MAX109
8-Bit, 2.2Gsps ADC with Track/Hold Amplifier
and 1:4 Demultiplexed LVDS Outputs
_______________________________________________________________________________________ 5
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
A = V
CC
I = V
CC
D = 5V, V
CC
O = 3.3V, V
EE
= -5V, GNDA = GNDI = GNDO = GNDD = GNDR = 0V, VOSADJ = SAMPADJ =
open, digital output pins differential R
L
= 100Ω. Specifications ≥ +25°C guaranteed by production test, < +25°C guaranteed by
design and characterization. Typical values are at T
A
= +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
POWER REQUIREMENTS
Analog Supply Current IV
CC
A 556 744 mA
Positive Input Supply Current IV
CC
I 125 168 mA
Negative Input Supply Current IIV
EE
I 181 240 mA
Digital Supply Current IV
CC
D 291 408 mA
Output Supply Current IV
CC
O 222 300 mA
Power Dissipation P
DISS
6.50 8.79 W
Positive Power-Supply Rejection
Ratio
PSRRP (Note 5) 50 dB
Negative Power-Supply Rejection
Ratio
PSRRN V
EE
= -5.25V to -4.75V 50 dB
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
ANALOG INPUT
Analog Input Full-Power
Bandwidth (Note 6)
BW
-3dB
2.8 GHz
Gain Flatness GF 1100MHz to 2200MHz ±0.3 dB
DYNAMIC SPECIFICATIONS
SNR
300
f
IN
= 300MHz, f
CLK
= 2.2Gsps 44.6
SNR
1000
f
IN
= 1000MHz, f
CLK
= 2.2Gsps (Note 8) 43.6 44.5
SNR
1600
f
IN
= 1600MHz, f
CLK
= 2.2Gsps (Note 8) 42.2 44.0
SNR
2500
f
IN
= 2500MHz, f
CLK
= 2.2Gsps 42.9
SNR
500
f
IN
= 500MHz, f
CLK
= 2.5Gsps 44.4
Signal-to-Noise Ratio
SNR
1600
f
IN
= 1600MHz, f
CLK
= 2.5Gsps 44.0
dB
THD
300
f
IN
= 300MHz, f
CLK
= 2.2Gsps -55.6
THD
1000
f
IN
= 1000MHz, f
CLK
= 2.2Gsps (Note 8) -48.5 -42.5
THD
1600
f
IN
= 1600MHz, f
CLK
= 2.2Gsps (Note 8) -46.6 -39.6
THD
2500
f
IN
= 2500MHz, f
CLK
= 2.2Gsps -43.7
THD
500
f
IN
= 500MHz, f
CLK
= 2.5Gsps -49.0
Total H ar m oni c D i stor ti on ( N ote 7)
THD
1600
f
IN
= 1600MHz, f
CLK
= 2.5Gsps -43.1
dBc
AC ELECTRICAL CHARACTERISTICS
(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
= 2.2Gsps, analog input
amplitude at -1dBFS differential, clock input amplitude 400mV
P-P
differential, digital output pins differential R
L
= 100Ω. Typical values
are at T
A
= +25°C, unless otherwise noted.)
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