Rainbow Electronics MAX1197 - Manual (Page 7)

MAX1197
Dual, 8-Bit, 60Msps, 3V, Low-Power ADC with
Internal Reference and Parallel Outputs
_______________________________________________________________________________________ 7
Typical Operating Characteristics
(V DD = 3V, OV DD = 3V, V REFIN = 2.048V, differential input at -1dB FS, f CLK = 40MHz, C L
≈ 10pF T
A = +25 °C, unless otherwise
noted.)
SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT FREQUENCY
MAX1197 toc09
ANALOG INPUT FREQUENCY (MHz)
SFDR (dBc)
160 120 80 40
50
60
70
80
90
40
0 200
CHA
CHB
TOTAL HARMONIC DISTORTION
vs. ANALOG INPUT FREQUENCY
MAX1197 toc08
ANALOG INPUT FREQUENCY (MHz)
THD (dBc)
160 120 80 40
-80
-70
-60
-50
-40
-90
0 200
CHA
CHB
SIGNAL-TO-NOISE + DISTORTION
vs. ANALOG INPUT FREQUENCY
MAX1197 toc07
ANALOG INPUT FREQUENCY (MHz)
SINAD (dB)
160 120 80 40
46
47
48
49
50
45
0 200
CHA
CHB
SIGNAL-TO-NOISE RATIO
vs. ANALOG INPUT FREQUENCY
MAX1197 toc06
ANALOG INPUT FREQUENCY (MHz)
SNR (dB)
160 120 80 40
46
47
48
49
50
45
0 200
CHA
CHB
TWO-TONE IMD PLOT (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1197 toc05
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
14 12 13 8 9 10 11 7
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
6
f IN1 f IN2
f CLK = 60.00640MHz
f IN1 = 9.969325MHz
f IN2 = 10.013275MHz
AIN = -7dB FS
COHERENT SAMPLING
TWO-TONE IMD PLOT (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1197 toc04
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
4.5 4.0 3.0 3.5 1.0 1.5 2.0 2.5 0.5
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
0 5.0
f IN1 f IN2
f CLK = 60.00640MHz
f IN1 = 1.985075MHz
f IN2 = 2.029025MHz
AIN = -7dB FS
COHERENT SAMPLING
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1197 toc03
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
25 5 10 15 20 0 30
f CLK = 60.056789MHz
f INA = 114.974441MHz
f
INB
= 99.945816MHz
AIN = -1dB FS
COHERENT SAMPLING
f INA
HD2 HD3
f INB
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1197 toc02
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
25 5 10 15 20
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
0 30
f INA
HD2 HD3 f INB
f CLK = 60.056789MHz
f INA = 29.859778MHz
f INB = 19.9333995MHz
AIN = -1dB FS
COHERENT SAMPLING
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1197 toc01
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
f INA
HD2
25 20 15 10 5 0 30
f CLK = 60.056789MHz
f INA = 7.4851051MHz
f
INB
= 19.9333995MHz
AIN = -1dB FS
COHERENT SAMPLING
f
INB
HD3