
MAX1195
Dual, 8-Bit, 40Msps, 3V, Low-Power ADC with
Internal Reference and Parallel Outputs
_______________________________________________________________________________________
7
Typical Operating Characteristics
(VDD = 3V, OVDD = 3V, VREFIN = 2.048V, differential input at -1dB FS, fCLK = 40MHz, CL
≈ 10pF TA = +25°C, unless otherwise
noted.)
SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT FREQUENCY
MAX1195
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
MAX1195
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
MAX1195
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
MAX1195
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)
MAX1195
toc05
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE
(dB)
14
13
11 12
7
8
9
10
6
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
515
fIN1
fIN2
fCLK = 40.001536MHz
fIN1 = 10.024799MHz
fIN2 = 9.956437MHz
AIN = -7dB FS
COHERENT SAMPLING
TWO-TONE IMD PLOT (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1195
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
05.0
fIN1
fIN2
fCLK = 40.001536MHz
fIN1 = 1.997147MHz
fIN2 = 2.045977MHz
AIN = -7dB FS
COHERENT SAMPLING
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1195
toc03
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE
(dB)
18
16
12 14
4
6
8
10
2
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
020
fINA
HD2
HD3
fINB
fCLK = 40.056789MHz
fINA = 115.0665837MHz
fINB = 99.9512724MHz
AIN = -1dB FS
COHERENT SAMPLING
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1195
toc02
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE
(dB)
18
16
12 14
4
6
8
10
2
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
020
fINA
HD2
HD3
fINB
fCLK = 40.056789MHz
fINA = 7.4861992MHz
fINB = 19.9159303MHz
AIN = -1dB FS
COHERENT SAMPLING
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1195
toc01
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE
(dB)
18
16
12 14
4
6
8
10
2
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
020
fINA
HD2 HD3
fINB
fCLK = 40.056789MHz
fINA = 1.0317361MHz
fINB = 7.4861992MHz
AIN = -1dB FS
COHERENT SAMPLING