MAX12557 Datasheet, PDF (10/28 Pages) Maxim Integrated Products – Dual, 65Msps, 14-Bit, IF/Baseband ADC

Dual, 65Msps, 14-Bit, IF/Baseband ADC
Typical Operating Characteristics (continued)
(V_DD = 3.3V, OV_DD = 2.0V, GND = 0, REFIN = REFOUT (internal reference mode), C_L ≈ 5pF at digital outputs, V_IN = -0.5dBFS,
DIFFCLK/SECLK = OV_DD, PD = GND, G/T = GND, f_CLK = 65MHz (50% duty cycle), T_A = +25°C, unless otherwise noted.)
-THD, SFDR vs. ANALOG SUPPLY VOLTAGE
(f_CLK = 65.00352MHz, f_IN = 175MHz)
85
80
SFDR
75
-THD
70
65
SNR, SINAD vs. DIGITAL SUPPLY VOLTAGE
(f_CLK = 65.00352MHz, f_IN = 70MHz)
80
SNR
76
72
SINAD
68
64
-THD, SFDR vs. DIGITAL SUPPLY VOLTAGE
(f_CLK = 65.00352MHz, f_IN = 70MHz)
95
SFDR
90
85
80
-THD
75
70
65
60
3.0 3.1 3.2 3.3 3.4 3.5 3.6
V_DD (V)
60
1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6
OV_DD (V)
60
1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6
OV_DD (V)
SNR, SINAD vs. DIGITAL SUPPLY VOLTAGE
(f_CLK = 65.00352MHz, f_IN = 175MHz)
75
SNR
72
69
SINAD
66
63
60
1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6
OV_DD (V)
P_DISS, I_OVDD (DIGITAL)
vs. DIGITAL SUPPLY VOLTAGE
(f_CLK = 65.00352MHz, f_IN = 175MHz)
80
C_L ≈ 5pF
70
60
50
P_DISS (DIGITAL)
40
-THD, SFDR vs. DIGITAL SUPPLY VOLTAGE
(f_CLK = 65.00352MHz, f_IN = 175MHz)
80
SFDR
76
72
-THD
68
64
60
1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6
OV_DD (V)
SNR, SINAD vs. CLOCK DUTY CYCLE
(f_IN = 70MHz, A_IN = -0.5dBFS)
72
SNR
70
68
SINAD
66
P_DISS, I_VDD (ANALOG) vs. ANALOG SUPPLY VOLTAGE
(f_CLK = 65.00352MHz, f_IN = 175MHz)
900
800
P_DISS (ANALOG)
700
600
500
400
300
I_VDD
200
100
0
3.0 3.1 3.2 3.3 3.4 3.5 3.6
V_DD (V)
-THD, SFDR vs. CLOCK DUTY CYCLE
(f_IN = 70MHz, A_IN = -0.5dBFS)
90
SFDR
85
80
-THD
75
30
I_OVDD
20
10
0
1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6
OV_DD (V)
64
62
60
25
SINGLE-ENDED CLOCK DRIVE
35
45
55
65
75
CLOCK DUTY CYCLE (%)
70
65
60
25
SINGLE-ENDED CLOCK DRIVE
35
45
55
65
75
CLOCK DUTY CYCLE (%)
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