Rainbow Electronics MAX109 - Manual (Page 8)

MAX109
8-Bit, 2.2Gsps ADC with Track/Hold Amplifier
and 1:4 Demultiplexed LVDS Outputs
8 _______________________________________________________________________________________
-90
-70
-80
-40
-50
-60
-10
-20
-30
0
FFT PLOT (16,384-POINT DATA RECORD)
MAX109 toc05
AMPLITUDE (dB)
f CLK = 2.49856GHz
f
IN
= 1599.268MHz
A IN = -1.059dBFS
SNR = 44.1dB
SINAD = 41.2dB
THD = -44.4dBc
SFDR = 46.1dBc
HD2 = -50.1dBc
HD3 = -46.1dBc
0 624.64 312.32 936.96 1249.28
468.48 156.16 780.8 1098.12
ANALOG INPUT FREQUENCY (MHz)
-90
-70
-80
-40
-50
-60
-10
-20
-30
0
TTIMD PLOT (16,384-POINT DATA RECORD)
MAX109 toc06
AMPLITUDE (dB)
f
CLK
= 2.21184GHz
f IN1 = 1590.165MHz
f IN2 = 1610.415MHz
A IN1 = A IN2 = -7.13dBFS
IM3 = -60.8dBc
0 552.96 276.48 829.44 1105.92
414.72 138.24 691.20 967.68
ANALOG INPUT FREQUENCY (MHz)
2f IN2 - f IN1 2f IN1 - f IN2
SNR, SINAD vs. ANALOG INPUT FREQUENCY
(f
CLK
= 2.21184Gsps, A
IN
= -1dBFS)
f IN (MHz)
SNR, SINAD (dB)
MAX109 toc07
0 500 1000 1500 2000 2500
30
34
38
42
46
50
SINAD
SNR
ENOB vs. ANALOG INPUT FREQUENCY
(f CLK = 2.21184Gsps, A IN = -1dBFS)
f IN (MHz)
ENOB (Bits)
MAX109 toc08
0 500 1000 1500 2000 2500
5.0
5.5
6.0
6.5
7.0
7.5
8.0
-THD, SFDR vs. ANALOG INPUT FREQUENCY
(f CLK = 2.21184Gsps, A IN = -1dBFS)
f
IN
(MHz)
-THD, SFDR (dBc)
MAX109 toc09
0 500 1000 1500 2000 2500
35
40
45
50
55
60
65
SFDR
-THD
HD2, HD3 vs. ANALOG INPUT FREQUENCY
(f CLK = 2.21184Gsps, A IN = -1dBFS)
f IN (MHz)
HD2
, HD3
(dB
c)
MAX109 toc10
0 500 1000 1500 2000 2500
-80
-75
-70
-65
-60
-55
-50
-45
-40
-35
-30
HD3
HD2
SNR, SINAD vs. ANALOG INPUT FREQUENCY
(f CLK = 2.49856Gsps, A IN = -1dBFS)
f IN (MHz)
SNR, SINAD (dB)
MAX109 toc11
0 500 1000 1500 2000 2500
30
34
38
42
46
50
SNR
SINAD
ENOB vs. ANALOG INPUT FREQUENCY
(f CLK = 2.49856Gsps, A IN = -1dBFS)
f
IN
(MHz)
ENOB (Bits)
MAX109 toc12
0 500 1000 1500 2000 2500
5.0
5.5
6.0
6.5
7.0
7.5
8.0
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.)
-90
-70
-80
-40
-50
-60
-10
-20
-30
0
FFT PLOT (16,384-POINT DATA RECORD)
MAX109 toc04
AMPLITUDE (dB)
f CLK = 2.21184GHz
f IN = 1600.155MHz
A
IN
= -0.992dBFS
SNR = 44.2dB
SINAD = 42.6dB
THD = -47.5dBc
SFDR = 51.1dBc
HD2 = -51.1dBc
HD3 = -52.1dBc
0 552.96 276.48 829.44 1105.92
414.72 138.24 691.20 967.68
ANALOG INPUT FREQUENCY (MHz)