Datasheet

MAX5864
Ultra-Low-Power, High Dynamic-
Performance, 22Msps Analog Front End
10 ______________________________________________________________________________________
DAC SPRURIOUS-FREE DYNAMIC RANGE
vs. SAMPLING RATE
MAX5864 toc25
SAMPLING RATE (MHz)
SFDR (dBc)
19161310
65
70
75
80
85
90
60
722
f
OUT
= f
CLK
/10
DAC SPRURIOUS-FREE DYNAMIC RANGE
vs. OUTPUT FREQUENCY
MAX5864 toc26
FREQUENCY (MHz)
SFDR (dBc)
108642
65
70
75
80
85
90
60
0
DAC SPURIOUS-FREE DYNAMIC RANGE
vs. OUTPUT POWER
MAX5864 toc27
OUTPUT POWER (dBFS)
SFDR (dBc)
-5-10-15-20-25
30
40
50
60
70
80
20
-30 0
f
OUT
= 2MHz
DAC CHANNEL-ID SPECTRAL PLOT
MAX5864 toc28
FREQUENCY (MHz)
AMPLITUDE (dB)
9753
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
111
f
ID
= 2.2MHz
DAC CHANNEL-QD SPECTRAL PLOT
MAX5864 toc29
FREQUENCY (MHz)
AMPLITUDE (dB)
9753
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
111
f
QD
= 2.2MHz
DAC CHANNEL-ID TWO TONE
SPECTRAL PLOT
MAX5864 toc30
FREQUENCY (MHz)
AMPLITUDE (dB)
9753
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
111
f
1
= 2.0MHz, f
2
= 2.2MHz, -7dBFS
f
1
f
2
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.)
ADC OFFSET ERROR vs. TEMPERATURE
MAX5864 toc22
TEMPERATURE (°C)
OFFSET ERROR (% FS)
603510-15
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
-1.0
-40 85
ADC GAIN ERROR vs. TEMPERATURE
MAX5864 toc23
TEMPERATURE (°C)
GAIN ERROR (% FS)
603510-15
-0.5
0
0.5
1.0
1.5
2.0
-1.0
-40 85
QA
IA
SUPPLY CURRENT
vs. SAMPLING RATE
MAX5864 toc24
SAMPLING RATE (MHz)
SUPPLY CURRENT (mA)
19161310
2
4
6
8
10
12
0
722
Rx MODE ONLY
I
VDD
I
OVDD