Datasheet

MAX5864
Ultra-Low-Power, High Dynamic-
Performance, 22Msps Analog Front End
_______________________________________________________________________________________ 9
THD (dB)
-75
-70
-65
-60
-55
-50
-80
ADC TOTAL HARMONIC DISTORTION
vs. SAMPLING RATE
MAX5864 toc16
SAMPLING RATE (MHz)
19161310722
f
IN
= 5.50885
SFDR (dBc)
55
65
65
70
75
80
50
ADC SPURIOUS-FREE DYNAMIC RANGE
vs. SAMPLING RATE
MAX5864 toc17
SAMPLING RATE (MHz)
19161310722
f
IN
= 5.50885
ADC SIGNAL-TO-NOISE RATIO
vs. CLOCK DUTY CYCLE
MAX5864 toc18
CLOCK DUTY CYCLE (%)
SNR (dB)
6055504540
46
47
48
49
50
45
35 65
f
IN
= 5.50885
IA
QA
ADC SIGNAL-TO-NOISE AND DISTORTION
RATIO vs. CLOCK DUTY CYCLE
MAX5864 toc19
CLOCK DUTY CYCLE (%)
SINAD (dB)
6055504540
46
47
48
49
50
45
35 65
f
IN
= 5.50885
IA
QA
THD (dB)
-78
-76
-74
-72
-70
-68
-66
-64
-62
-60
-80
ADC TOTAL HARMONIC DISTORTION
vs. CLOCK DUTY CYCLE
MAX5864 toc20
CLOCK DUTY CYCLE (%)
605550454035 65
f
IN
= 5.050885
ADC SPURIOUS-FREE DYNAMIC RANGE
vs. CLOCK DUTY CYCLE
MAX5864 toc21
CLOCK DUTY CYCLE (%)
SFDR (dBc)
6055504540
55
60
65
70
75
80
50
35 65
f
IN
= 5.050885
Typical Operating Characteristics (continued)
(V
DD
= DV
DD
= 3V, OV
DD
= 1.8V, internal reference (1.024V), C
L
≈ 10pF on all digital outputs, f
CLK
= 22MHz 50% duty cycle, ADC
input amplitude = -0.5dBFS, DAC output amplitude = 0dBFS, differential ADC input, differential DAC output, C
REFP
= C
REFN
=
C
COM
= 0.33µF, Xcvr mode, T
A
= +25°C, unless otherwise noted.)
SFDR (dBc)
35
40
45
50
55
60
65
70
75
80
30
ADC SPURIOUS -FREE DYNAMIC RANGE
vs. ANALOG INPUT POWER
MAX5864 toc13
ANALOG INPUT POWER (dBFS)
-4-8-12-16-20-24 0
f
IN
= 5.50885
ADC SIGNAL-TO-NOISE RATIO
vs. SAMPLING RATE
MAX5864 toc14
SAMPLING RATE (MHz)
SNR (dB)
19161310
46
47
48
49
50
45
722
QA
IA
f
IN
= 5.50885
ADC SIGNAL-TO-NOISE AND DISTORTION
RATIO vs. SAMPLING RATE
MAX5864 toc15
SAMPLING RATE (MHz)
SINAD (dB)
19161310
46
47
48
49
50
45
722
QA
IA
f
IN
= 5.50885