MAX19700 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX19700 Datasheet PDF : 32 Pages
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7.5Msps, Ultra-Low-Power
Analog Front-End
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 3V, OVDD = 1.8V, internal reference (1.024V), CL ≈ 10pF on all digital outputs, fCLK = 7.5MHz (50% duty cycle), ADC input
amplitude = -0.5dBFS, DAC output amplitude = 0dBFS, differential ADC input, differential DAC output, CREFP = CREFN = CCOM =
0.33µF. Typical values are at TA = +25°C, unless otherwise noted. CL < 5pF on all aux-DAC outputs.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
Rx ADC ANALOG INPUT
Input Differential Range
VID
Differential or single-ended inputs
Input Common-Mode Voltage
Range
VCM
Input Impedance
Rx ADC CONVERSION RATE
RIN
Switched capacitor load
CIN
Maximum Clock Frequency
Data Latency (Figure 3)
fCLK
(Note 2)
Channel I
Channel Q
Rx ADC DYNAMIC CHARACTERISTICS (Note 3)
Signal-to-Noise Ratio
Signal-to-Noise Plus Distortion
Spurious-Free Dynamic Range
Third-Harmonic Distortion
SNR
SINAD
SFDR
HD3
fIN = 1.875MHz, fCLK = 7.5MHz
fIN = 3.5MHz, fCLK = 7.5MHz
fIN = 1.875MHz, fCLK = 7.5MHz
fIN = 3.5MHz, fCLK = 7.5MHz
fIN = 1.875MHz, fCLK = 7.5MHz
fIN = 3.5MHz, fCLK = 7.5MHz
fIN = 1.875MHz, fCLK = 7.5MHz
fIN = 3.5MHz, fCLK = 7.5MHz
Intermodulation Distortion
IMD
f1 = 1.8MHz, -7dBFS;
f2 = 1MHz, -7dBFS
Third-Order Intermodulation
Distortion
IM3
f1 = 1.8MHz, -7dBFS;
f2 = 1MHz, -7dBFS
Total Harmonic Distortion
Aperture Delay
THD
fIN = 1.875MHz, fCLK = 7.5MHz
fIN = 3.5MHz, fCLK = 7.5MHz
Overdrive Recovery Time
1.5x full-scale input
Rx ADC INTERCHANNEL CHARACTERISTICS
Crosstalk Rejection
fINX,Y = 1.875MHz at -0.5dBFS, fINX,Y = 1MHz
at -0.5dBFS (Note 4)
Amplitude Matching
Phase Matching
fIN = 1.875MHz at -0.5dBFS (Note 5)
fIN = 1.875MHz at -0.5dBFS (Note 5)
MIN
53.7
53.6
66
TYP MAX UNITS
±0.512
V
VDD / 2
V
720
kΩ
5
pF
7.5
MHz
5
Clock
5.5
Cycles
55
dB
54.8
54.9
dB
54.7
78
dBc
70.1
-84
dBc
-72.1
-75.6
dBc
-78
dBc
-77.9 -64
dBc
-71
3.5
ns
2
ns
-85
±0.02
±0.22
dB
dB
D eg r ees
4 _______________________________________________________________________________________
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