Datasheet

MAX1191
Ultra-Low-Power, 7.5Msps, Dual 8-Bit ADC
______________________________________________________________________________________ 11
SIGNAL-TO-NOISE RATIO
vs. CLOCK DUTY CYCLE
MAX1191 toc23
CLOCK DUTY CYCLE (%)
SNR (dB)
555045
46
47
48
49
50
45
40 60
f
IN
= 2.017059MHz
SIGNAL-TO-NOISE AND DISTORTION
vs. CLOCK DUTY CYCLE
MAX1191 toc24
CLOCK DUTY CYCLE (%)
SINAD (dB)
555045
46
47
48
49
50
45
40 60
f
IN
= 2.017059MHz
TOTAL HARMONIC DISTORTION
vs. CLOCK DUTY CYCLE
MAX1191 toc25
CLOCK DUTY CYCLE (%)
THD (dBc)
555045
-78
-76
-74
-72
-70
-68
-66
-64
-62
-60
-80
40 60
f
IN
= 2.017059MHz
SPURIOUS-FREE DYNAMIC RANGE
vs. CLOCK DUTY CYCLE
MAX1191 toc26
CLOCK DUTY CYCLE (%)
SFDR (dBc)
555045
62
64
66
68
70
72
74
76
78
80
60
40 60
f
IN
= 2.017059MHz
Typical Operating Characteristics (continued)
(V
DD
= 3.0V, OV
DD
= 1.8V, V
REFIN
= V
DD
(internal reference), C
L
≈ 10pF at digital outputs, differential input at -0.5dB FS, f
CLK
=
7.500567MHz at 50% duty cycle, T
A
= +25°C, unless otherwise noted.)