Typical operating characteristics – Rainbow Electronics MAX1198 User Manual
Page 7
MAX1198
Dual, 8-Bit, 100Msps, 3.3V, Low-Power ADC
with Internal Reference and Parallel Outputs
_______________________________________________________________________________________
7
Typical Operating Characteristics
(V
DD
= 3.3V, OV
DD
= 2.5V, V
REFIN
= 2.048V, differential input at -1dB FS, f
CLK
= 100MHz, C
L
≈ 10pF, T
A
= +25
°C, unless otherwise
noted.)
SFDR (dBc)
48
56
64
72
80
40
SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT FREQUENCY
MAX1198 toc09
ANALOG INPUT FREQUENCY (MHz)
160
120
80
40
0
200
CHB
CHA
THD (dBc)
-72
-64
-56
-48
-40
-80
TOTAL HARMONIC DISTORTION
vs. ANALOG INPUT FREQUENCY
MAX1198 toc08
ANALOG INPUT FREQUENCY (MHz)
160
120
80
40
0
200
CHB
CHA
SIGNAL-TO-NOISE + DISTORTION
vs. ANALOG INPUT FREQUENCY
MAX1198 toc07
ANALOG INPUT FREQUENCY (MHz)
SNR (dB)
160
120
80
40
42
44
46
48
50
40
0
200
CHB
CHA
SIGNAL-TO-NOISE RATIO
vs. ANALOG INPUT FREQUENCY
MAX1198 toc06
ANALOG INPUT FREQUENCY (MHz)
SNR (dB)
160
120
80
40
42
44
46
48
50
40
0
200
CHA
CHB
MAX1198 toc05
12
11
10
9
8
7
13
TWO-TONE IMD PLOT (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
f
CLK
= 100.007936MHz
f
IN1
= 10.022768MHz
f
IN2
= 10.047184MHz
AIN = -7dB FS
COHERENT SAMPLING
f
IN1
f
IN2
TWO-TONE IMD PLOT (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1198 toc04
4.5
4.0
3.0 3.5
1.0 1.5 2.0 2.5
0.5
0
5.0
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
f
CLK
= 100.007936MHz
f
IN1
= 1.989904MHz
f
IN2
= 2.038736MHz
AIN = -7dB FS
COHERENT SAMPLING
f
IN1
f
IN2
MAX1198 toc03
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
45
40
30 35
10 15 20 25
5
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
0
50
f
CLK
= 100.050607MHz
f
INA
= 114.9629350MHz
f
INB
= 99.5010126MHz
AIN = -1dB FS
COHERENT SAMPLING
f
INB
f
INA
HD2
HD3
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1198 toc02
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
45
40
30 35
10 15 20 25
5
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
0
50
f
CLK
= 100.050607MHz
f
INA
= 49.7443997MHz
f
INB
= 19.8708908MHz
AIN = -1dB FS
COHERENT SAMPLING
f
INB
f
INA
HD2
HD3
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1198 toc01
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
45
40
30 35
10 15 20 25
5
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
0
50
f
CLK
= 100.050607MHz
f
INA
= 19.8708908MHz
f
INB
= 7.5355498MHz
AIN = -1dB FS
COHERENT SAMPLING
f
INB
f
INA
HD2
HD3