Datasheet

MAX1191
Ultra-Low-Power, 7.5Msps, Dual 8-Bit ADC
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SIGNAL-TO-NOISE RATIO
vs. ANALOG INPUT POWER
MAX1191 toc15
ANALOG INPUT POWER (dB FS)
SNR (dB)
-10
-5-15-25 -20
10
20
30
40
50
60
0
-30 0
f
IN
= 2.017059MHz
SIGNAL-TO-NOISE AND DISTORTION
vs. ANALOG INPUT POWER
MAX1191 toc16
ANALOG INPUT POWER (dB FS)
SINAD (dB)
-10-20
10
20
30
40
50
60
0
-30 0
f
IN
= 2.017059MHz
TOTAL HARMONIC DISTORTION
vs. ANALOG INPUT POWER
MAX1191 toc17
ANALOG INPUT POWER (dB FS)
THD (dBc)
-10
-5-15-25 -20
-60
-70
-50
-40
-30
-30 0
f
IN
= 2.017059MHz
SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT POWER
MAX1191 toc18
ANALOG INPUT POWER (dB FS)
SFDR (dBc)
-10
-5-15-25 -20
50
40
60
70
80
30
-30 0
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.)