MAX1190 Datasheet, PDF (6/21 Pages) Maxim Integrated Products – Dual 10-Bit, 120Msps, 3.3V, Low-Power ADC with Internal Reference and Parallel Outputs

Dual 10-Bit, 120Msps, 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 -0.5dB FS, f_CLK = 120MHz, C_L ≈ 10pF, T_A = +25°C, unless otherwise noted.)
FFT PLOT CHA (8192-POINT RECORD,
DIFFERENTIAL INPUT)
0
CHA
-25
f_INA = 20.0119MHz
f_INB = 12.9799MHz
f_CLK = 120.0128MHz
AINA/AINB = -0.52dB FS
f_INA
-50
FFT PLOT CHB (8192-POINT RECORD,
DIFFERENTIAL INPUT)
0
CHB
-25
f_INA = 12.9799MHz
f_INB = 20.0119MHz
f_CLK = 120.0128MHz
AINA/AINB = -0.52dB FS
f_INB
-50
FFT PLOT CHA (8192-POINT RECORD,
DIFFERENTIAL INPUT)
0
CHA
f_INA = 31.0873MHz
-25 _{fINB = 23.9967MHz}
f_CLK = 120.0128MHz
AINA/AINB = -0.52dB FS fINA
-50
-75
-75
-75
-100
-100
-100
-125
0
12
24
36
48
60
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT CHB (8192-POINT RECORD,
DIFFERENTIAL INPUT)
0
CHB
f_INA = 23.9967MHz
-25 fINB = 31.0873MHz
f_CLK = 120.0128MHz
AINA/AINB = -0.52dB FS _fINB
-50
-75
-125
0
12
24
36
48
60
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT CHA (8192-POINT RECORD,
DIFFERENTIAL INPUT)
0
CHA
f_INA = 59.7427MHz
-25 fINB = 49.0189MHz
f_CLK = 120.0128MHz
AINA/AINB = -0.52dB FS
-50
f_INA
-75
-125
0
12
24
36
48
60
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT CHB (8192-POINT RECORD,
DIFFERENTIAL INPUT)
0
CHB
f_INA = 49.0189MHz
-25 ^fINB ^{= 59.7427MHz}
f_CLK = 120.0128MHz
AINA/AINB = -0.52dB FS
-50
f_INB
-75
-100
-100
-100
-125
0
12
24
36
48
60
ANALOG INPUT FREQUENCY (MHz)
TWO-TONE IMD PLOT
(8192-POINT RECORD, DIFFERENTIAL INPUT)
0
f_IN1 = 43.3933MHz
f_IN2 = 48.9017MHz
-25 ^{fCLK = 120.0128MHz}
AIN = -6.5dB FS
-50
f_IN1
f_IN2
-75
-125
0
12
24
36
48
60
ANALOG INPUT FREQUENCY (MHz)
SIGNAL-TO-NOISE RATIO
vs. ANALOG INPUT FREQUENCY
60
CHB
58
56
CHA
54
-125
0
12
24
36
48
60
ANALOG INPUT FREQUENCY (MHz)
SIGNAL-TO-NOISE + DISTORTION
vs. ANALOG INPUT FREQUENCY
60
CHB
58
56
CHA
54
-100
52
52
-125
0
12
24
36
48
60
ANALOG INPUT FREQUENCY (MHz)
50
0
20 40 60 80 100 120
ANALOG INPUT FREQUENCY (MHz)
50
0
20 40 60 80 100 120
ANALOG INPUT FREQUENCY (MHz)
6 _______________________________________________________________________________________