MAX12527
Dual, 65Msps, 12-Bit, IF/Baseband ADC
8_______________________________________________________________________________________
INTEGRAL NONLINEARITYvs. DIGITAL OUTPUT CODE
MAX12527 toc07
DIGITAL OUTPUT CODE
INL (LSB)
360030001800 24001200600
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.5
0 4200
fCLK = 65MHz
fIN = 3.00119MHz
DIFFERENTIAL NONLINEARITYvs. DIGITAL OUTPUT CODE
MAX12527 toc08
DIGITAL OUTPUT CODE
DNL (LSB)
360030001800 24001200600
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
-0.5
0 4200
fCLK = 65MHz
fIN = 3.00119MHz
SNR, SINAD vs. ANALOG INPUT FREQUENCY(fCLK = 65.00352MHz, AIN = -0.5dBFS)
MAX12527 toc09
fIN (MHz)
SNR, SINAD (dB)
350300200 250100 15050
52
54
56
58
60
62
64
66
68
70
72
50
0 400
SINAD
SNR
-THD, SFDR vs. ANALOG INPUT FREQUENCY(fCLK = 65.00352MHz, AIN = -0.5dBFS)
MAX12527 toc10
fIN (MHz)
-THD, SFDR (dBc)
350300200 250100 15050
55
60
65
70
75
80
85
90
95
50
0 400
SFDR
-THD
SNR, SINAD vs. ANALOG INPUT AMPLITUDE
(fCLK = 65.00352MHz, fIN = 70MHz)
MAX12527 toc11
AIN (dBFS)
SNR, SINAD (dB)
-5-10-15-20-25-30-35-40-45-50
25
35
45
55
65
75
15
-55 0
SNR
SINAD
-THD, SFDR vs. ANALOG INPUT AMPLITUDE
(fCLK = 65.00352MHz, fIN = 70MHz)
MAX12527 toc12
AIN (dBFS)
-THD, SFDR (dBc)
-5-10-15-20-25-30-35-40-45-50
35
45
55
65
75
85
95
25
-55 0
SFDR
-THD
FFT PLOT (32,768-POINT DATA RECORD)
MAX12527 toc04
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dBFS)
302515 20105
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-120
0
fCLK = 65.00352MHz
fIN = 174.90525MHz
AIN = -0.448dBFS
SNR = 69.4dB
SINAD = 68.9dB
THD = -78.6dBc
SFDR = 81.1dBc
HD2
HD3
TWO-TONE IMD PLOT(16,384-POINT DATA RECORD)
MAX12527 toc05
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dBFS)
30252015105
-100
-80
-60
-40
-20
0
-120
0
fCLK = 65.00352MHz
fIN1 = 68.49889MHz
fIN2 = 71.49832MHz
AIN1 = -6.96dBFS
AIN2 = -7.02dBFS
IM3 = -92.25dBc
IMD = -89.08dBc
fIN1 fIN2
2fIN2 + fIN1
TWO-TONE IMD PLOT(16,384-POINT DATA RECORD)
MAX12527 toc06
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dBFS)
30252015105
-100
-80
-60
-40
-20
0
-120
0
fCLK = 65.00352MHz
fIN1 = 172.50293MHz
AIN1 = -6.99dBFS
fIN2 = 177.40198MHz
AIN2 = -7.01dBFS
IM3 = -88.88dBc
IMD = -82.24dBc
fIN1
fIN2 fIN1 + fIN2
fIN2 - fIN1
Typical Operating Characteristics (continued)
(VDD = 3.3V, OVDD = 2.0V, GND = 0, REFIN = REFOUT (internal reference mode), CL≈5pF at digital outputs, VIN = -0.5dBFS,
DIFFCLK/SECLK= OVDD, PD = GND, G/T= GND, fCLK = 65MHz (50% duty cycle), TA= +25°C, unless otherwise noted.)