Datasheet

MAX19707
10-Bit, 45Msps, Ultra-Low-Power
Analog Front-End
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 3V, OV
DD
= 1.8V, internal reference (1.024V), C
L
≈ 10pF on all digital outputs, f
CLK
= 45MHz (50% duty cycle), Rx ADC input
amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, differential Rx ADC input, differential Tx DAC output, C
REFP
= C
REFN
=
C
COM
= 0.33µF, unless otherwise noted. C
L
< 5pF on all aux-DAC outputs. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Rx ADC ANALOG INPUT
Input Differential Range V
ID
Differential or single-ended inputs
±0.512
V
Input Common-Mode Voltage
Range
V
CM
V
DD
/ 2
V
R
IN
Switched capacitor load
120
kΩ
Input Impedance
C
IN
5pF
Rx ADC CONVERSION RATE
Maximum Clock Frequency f
CLK
(Note 2) 45
MHz
Channel I 5
Data Latency (Figure 3)
Channel Q 5.5
Clock
Cycles
Rx ADC DYNAMIC CHARACTERISTICS (Note 3)
f
IN
= 5.5MHz, f
CLK
= 45MHz
52.5 54.2
Signal-to-Noise Ratio SNR
f
IN
= 22MHz, f
CLK
= 45MHz
54.1
dB
f
IN
= 5.5MHz, f
CLK
= 45MHz
52.2 54.1
Signal-to-Noise Plus Distortion SINAD
f
IN
= 22MHz, f
CLK
= 45MHz 54
dB
f
IN
= 5.5MHz, f
CLK
= 45MHz
62.1 71.2
Spurious-Free Dynamic Range SFDR
f
IN
= 22MHz, f
CLK
= 45MHz
70.4
dBc
f
IN
= 5.5MHz, f
CLK
= 45MHz
-78.1
Third-Harmonic Distortion HD3
f
IN
= 22MHz, f
CLK
= 45MHz
-73.1
dBc
Intermodulation Distortion IMD
f
1
= 1.8MHz, -7dBFS;
f
2
= 1MHz, -7dBFS
-68.6
dBc
Third-Order Intermodulation
Distortion
IM3
f
1
= 1.8MHz, -7dBFS;
f
2
= 1MHz, -7dBFS
-79.2
dBc
f
IN
= 5.5MHz, f
CLK
= 45MHz
-68.4 -61.5
Total Harmonic Distortion THD
f
IN
= 22MHz, f
CLK
= 45MHz
-68.8
dBc
Aperture Delay 3.5 ns
Overdrive Recovery Time 1.5x full-scale input 2 ns
Rx ADC INTERCHANNEL CHARACTERISTICS
Crosstalk Rejection
f
IN X,Y
= 5.5MH z at - 0.5d BFS , f
IN X,Y
= 1.8MH z
at - 0.5d BFS ( N ote 4)
-90 dB
Amplitude Matching f
IN
= 5.5MHz at -0.5dBFS (Note 5)
±0.01
dB
Phase Matching f
IN
= 5.5MHz at -0.5dBFS (Note 5)
±0.03
D eg r ees