MAX1198 Datasheet, PDF (7/22 Pages) Maxim Integrated Products – Dual, 8-Bit, 100Msps, 3.3V, Low-Power ADC with Internal Reference and Parallel Outputs

Dual, 8-Bit, 100Msps, 3.3V, Low-Power ADC
with Internal Reference and Parallel Outputs
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.)
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
f_CLK = 100.050607MHz
-10
f_INA = 19.8708908MHz
-20
f_INB = 7.5355498MHz
AIN = -1dB FS
-30
f_INA
COHERENT SAMPLING
-40
-50
-60
f_INB
HD3
HD2
-70
-80
-90
0
5 10 15 20 25 30 35 40 45 50
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
f_CLK = 100.050607MHz
-10
f_INA = 49.7443997MHz
-20
f_INB = 19.8708908MHz
AIN = -1dB FS
-30
COHERENT SAMPLING
-40
f_INA
-50
HD3
-60
HD2
f_INB
-70
-80
-90
0
5 10 15 20 25 30 35 40 45 50
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
-10
-20
f_INA
-30
f_CLK = 100.050607MHz
f_INA = 114.9629350MHz
f_INB = 99.5010126MHz
AIN = -1dB FS
COHERENT SAMPLING
-40
-50
-60
f_INB
HD3
HD2
-70
-80
-90
0
5 10 15 20 25 30 35 40 45 50
ANALOG INPUT FREQUENCY (MHz)
TWO-TONE IMD PLOT (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
f_CLK = 100.007936MHz
-10
f_IN1 = 1.989904MHz
-20
f_IN2 = 2.038736MHz
AIN = -7dB FS
-30
COHERENT SAMPLING
-40
f_IN1
-50
f_IN2
-60
-70
-80
-90
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
ANALOG INPUT FREQUENCY (MHz)
SIGNAL-TO-NOISE + DISTORTION
vs. ANALOG INPUT FREQUENCY
50
CHA
48
TWO-TONE IMD PLOT (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
f_CLK = 100.007936MHz
-10 f_IN1 = 10.022768MHz
-20
f_IN2 = 10.047184MHz
AIN = -7dB FS
-30 ^{COHERENT SAMPLING}
-40
-50
f_IN1
f_IN2
-60
-70
-80
-90
7
8 9 10 11 12 13
ANALOG INPUT FREQUENCY (MHz)
TOTAL HARMONIC DISTORTION
vs. ANALOG INPUT FREQUENCY
-40
-48
SIGNAL-TO-NOISE RATIO
vs. ANALOG INPUT FREQUENCY
50
CHB
48
CHA
46
44
42
40
0
40
80 120 160 200
ANALOG INPUT FREQUENCY (MHz)
SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT FREQUENCY
80
72
CHA
CHB
46
-56
CHB
44
-64
64
CHB
56
CHA
42
-72
48
40
0
40
80 120 160 200
ANALOG INPUT FREQUENCY (MHz)
-80
0
40
80 120 160 200
ANALOG INPUT FREQUENCY (MHz)
40
0
40
80 120 160 200
ANALOG INPUT FREQUENCY (MHz)
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