Rainbow Electronics MAX1215 - Manual (Page 7)

MAX1215
1.8V, 12-Bit, 250Msps ADC for
Broadband Applications
_______________________________________________________________________________________ 7
63
67
65
71
69
75
73
77
SNR/SINAD, SFDR vs. SUPPLY VOLTAGE
(f IN = 65.03279MHz, A IN = -1dBFS)
MAX1215toc22
SUPPLY VOLTAGE (V)
SNR/SINAD, SFDR (dB, dBc)
1.70 1.75 1.80 1.85 1.90
SNR
SINAD
SFDR
AV CC = OV CC
1.2460
1.2480
1.2470
1.2500
1.2490
1.2510
1.2520
INTERNAL REFERENCE
vs. SUPPLY VOLTAGE
MAX1215toc23
SUPPLY VOLTAGE (V)
V
REFIO
(V)
1.70 1.75 1.80 1.85 1.90
MEASURED AT THE REFIO PIN
REFADJ = AV
CC = OV CC
0
2
1
3
4
5
6
-40 10 -15 35 60 85
PROPAGATION DELAY TIMES
vs. TEMPERATURE
TEMPERATURE ( °C)
PROPAGATION DELAY (ns)
MAX1215toc24
t PDL
t CPDL
Typical Operating Characteristics (continued)
(AV
CC
= OV
CC
= 1.8V, AGND = OGND = 0, f
SAMPLE
= 250MHz, A
IN
= -1dBFS; see each TOC for detailed information on test condi-
tions, differential input drive, differential sine-wave clock input drive, 0.1µF capacitor on REFIO, internal reference, digital output pins
differential R
L = 100 Ω, T
A = +25°C.)
20
30
25
40
35
50
45
55
65
60
70
-40 -30 -25 -35 -20 -15 -10 -5 0
NOISE-POWER RATIO vs. ANALOG INPUT
POWER (f NOTCH = 28.8MHz ± 1MHz)
MAX1215toc25
ANALOG INPUT POWER (dBFS)
NPR (dB)
WIDE NOISE BANDWIDTH = 50MHz
-100
-80
-90
-60
-70
-40
-50
-30
-10
-20
0
0 10 15 5 20 25 30 40 35 45 50
NOISE-POWER RATIO PLOT
(WIDE NOISE BANDWIDTH: 50MHz)
MAX1215toc26
ANALOG INPUT POWER (MHz)
NPR (dB)
f NOTCH = 28.8MHz
NPR = 65.4dB
60
63
62
61
64
65
66
67
68
69
70
-40 10 -15 35 60 85
SNR/SINAD vs. TEMPERATURE
(f IN = 100MHz, A IN = -1dBFS)
TEMPERATURE ( °C)
SNR/SINAD (dB)
MAX1215toc19
SNR
SINAD
60
66
64
62
68
70
72
74
76
78
80
-40 10 -15 35 60 85
SFDR vs. TEMPERATURE
(f IN = 100MHz, A IN = -1dBFS)
TEMPERATURE ( °C)
SFDR (dBc)
MAX1215toc20
-100
-88
-92
-96
-84
-80
-76
-72
-68
-64
-60
-40 10 -15 35 60 85
HD2/HD3 vs. TEMPERATURE
(f IN = 100MHz, A IN = -1dBFS)
TEMPERATURE ( °C)
HD2/HD3 (dBc)
MAX1215toc21
HD2
HD3