Typical operating characteristics – Rainbow Electronics MAX1122 User Manual
Page 5
MAX1122
1.8V, 10-Bit, 170Msps Analog-to-Digital Converter
with LVDS Outputs for Wideband Applications
_______________________________________________________________________________________
5
-100
-80
-90
-60
-70
-40
-50
-30
-10
-20
0
0
20
30
40
10
50
60
70
80
90
FFT PLOT (8192-POINT DATA RECORD,
COHERENT SAMPLING)
MAX1122 toc01
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
f
SAMPLE
= 170.0057MHz
f
IN
= 11.5177MHz
A
IN
= -0.5065dBFS
SNR = 57.7dB
SFDR = 77.7dBc
HD2 = -77.7dBc
HD3 = -86.3dBc
HD2
HD3
-100
-80
-90
-60
-70
-40
-50
-30
-10
-20
0
0
20
30
40
10
50
60
70
80
90
FFT PLOT (8192-POINT DATA RECORD,
COHERENT SAMPLING)
MAX1122 toc02
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
f
SAMPLE
= 170.0057MHz
f
IN
= 60.0374MHz
A
IN
= -0.4795dBFS
SNR = 57.5dB
SFDR = 77.7dBc
HD2 = -79.8dBc
HD3 = -77.7dBc
HD2
HD3
-100
-80
-90
-60
-70
-40
-50
-30
-10
-20
0
0
20
30
40
10
50
60
70
80
90
FFT PLOT (8192-POINT DATA RECORD,
COHERENT SAMPLING)
MAX1122 toc03
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
f
SAMPLE
= 170.0057MHz
f
IN
= 183.5157MHz
A
IN
= -0.4706dBFS
SNR = 56.7dB
SFDR = 66.8dBc
HD2 = -79.3dBc
HD3 = -66.8dBc
HD2
HD3
-100
-80
-90
-60
-70
-40
-50
-30
-10
-20
0
0
20
30
40
10
50
60
70
80
90
FFT PLOT (8192-POINT DATA RECORD,
COHERENT SAMPLING)
MAX1122 toc04
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
f
SAMPLE
= 170.0057MHz
f
IN
= 500.516MHz
A
IN
= -0.5155dBFS
SNR = 55.9dB
SFDR = 63.5dBc
HD2 = -68.6dBc
HD3 = -63.5dBc
HD3
HD2
SNR vs. ANALOG INPUT FREQUENCY
(f
SAMPLE
= 169.984MHz, A
IN
= -0.5dBFS)
MAX1122 toc05
f
IN
(MHz)
SNR (dB)
400
300
200
100
54
55
57
56
58
59
53
0
500
SFDR vs. ANALOG INPUT FREQUENCY
(f
SAMPLE
= 169.984MHz, A
IN
= -0.5dBFS)
MAX1122 toc06
f
IN
(MHz)
SFDR (dBc)
400
300
200
100
45
50
65
55
60
35
40
70
75
80
30
0
500
HD2/HD3 vs. ANALOG INPUT FREQUENCY
(f
SAMPLE
= 169.984MHz, A
IN
= -0.5dBFS)
MAX1122 toc07
f
IN
(MHz)
HD2/HD3 (dBc)
400
300
200
100
-90
-80
-70
-60
-50
-100
0
500
HD2
HD3
27
37
32
52
47
42
57
62
-28
-16
-12
-24
-20
-8
-4
0
SNR vs. ANALOG INPUT AMPLITUDE
(f
SAMPLE
= 170.0057MHz, f
IN
= 60.0374MHz)
MAX1122 toc08
ANALOG INPUT AMPLITUDE (dBFS)
SNR (dB)
50
60
55
70
65
75
80
-28
-16
-12
-24
-20
-8
-4
0
SFDR vs. ANALOG INPUT AMPLITUDE
(f
SAMPLE
= 170.0057MHz, f
IN
= 60.0374MHz)
MAX1122 toc09
ANALOG INPUT AMPLITUDE (dBFS)
SFDR (dBc)
Typical Operating Characteristics
(AV
CC
= OV
CC
= 1.8V, AGND = OGND = 0, f
SAMPLE
= 170.0057MHz, -0.5dBFS; see TOCs for detailed information on test condi-
tions, differential input drive, differential sine-wave clock input drive, 0.1µF capacitor on REFIO, internal reference, digital output pins
differential R
L
= 100Ω, T
A
= +25°C.)