MAX1219 Datasheet, PDF (7/21 Pages) Maxim Integrated Products – 1.8V, Dual, 12-Bit, 210Msps ADC for Broadband Applications

1.8V, Dual, 12-Bit, 210Msps ADC for
Broadband Applications
Typical Operating Characteristics (continued)
(AV_CC = OV_CC = 1.8V, f_SAMPLE = 210MHz, differential input and differential sine-wave clock signal, 0.1µF capacitors on REFA and
REFB, internal reference, digital output differential R_L = 100Ω, T_A = +25°C, unless otherwise noted.)
DIFFERENTIAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
1.0
f_IN = 65MHz
0.7
0.4
0.1
-0.2
-0.5
-0.8
0
512 1024 1536 2048 2560 3072 3584 4095
DIGITAL OUTPUT CODE
INTEGRAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
1.2
f_IN = 65MHz
0.8
0.4
0
-0.4
-0.8
0
512 1024 1536 2048 2560 3072 3584 4095
DIGITAL OUTPUT CODE
SNR/SINAD vs. ANALOG INPUT AMPLITUDE
(f_SAMPLE = 210MHz, f_IN = 65MHz)
70
67
64
61
58
SNR
55
52
49
46
SINAD
43
40
37
34
-30 -25 -20 -15 -10 -5 0
ANALOG INPUT AMPLITUDE (dBFS)
HD2/HD3 vs. ANALOG INPUT AMPLITUDE
(f_SAMPLE = 210MHz, f_IN = 65MHz)
-50
-55
-60
HD3
-65
-70
-75
-80
HD2
-85
-90
-95
-100
-30 -25 -20 -15 -10 -5 0
ANALOG INPUT AMPLITUDE (dBFS)
SFDR/(-THD) vs. ANALOG INPUT AMPLITUDE
(f_SAMPLE = 210MHz, f_IN = 65MHz)
90
85
80
75
SFDR
70
65
60
55
-THD
50
45
40
-30 -25 -20 -15 -10 -5 0
ANALOG INPUT AMPLITUDE (dBFS)
FS VOLTAGE vs. ADJUST RESISTOR
1.34
1.32
RESISTOR VALUE APPLIED BETWEEN
1.30
REFADJA/REFADJB AND REFA/REFB
INCREASES V_FS
1.28
1.26
1.24
1.22
1.20
RESISTOR VALUE APPLIED BETWEEN
1.18
REFADJA/REFADJB
AND AGND DECREASES V_FS
1.16
1.14
0
125 250 375 500 625 750 875 1000
FS ADJUST RESISTOR (kΩ)
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