MAX19700 Просмотр технического описания (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
MIN TYP MAX UNITS
Tx DAC DC ACCURACY
Resolution
N
10
Bits
Integral Nonlinearity
INL
±0.45
LSB
Differential Nonlinearity
DNL Guaranteed monotonic (Note 6)
±0.26
LSB
Residual DC Offset
TA > +25°C
VOS
TA < +25°C
-4
±1
+4
mV
-6.5
±1 +6.5
Full-Scale Gain Error
Include reference error (peak-to-peak error) -50
+50
mV
TRANSMIT-PATH DYNAMIC PERFORMANCE
Corner Frequency
3dB corner
1.1
1.27
1.5
MHz
Passband Ripple
Group Delay Variation in Passband
DC to 640kHz (Note 6)
DC to 640kHz, guaranteed by design
0.28
0.5
dBP-P
50
100
ns
Error-Vector Magnitude
EVM DC to 700kHz
2
%
Stopband Rejection
Baseband Attenuation
DAC Conversion Rate
In-Band Noise Density
fCLK
ND
fIMAGE = 4.32MHz, fOUT = 800kHz,
fCLK = 5.12MHz
2MHz
Spot relative to
100kHz
4MHz
5MHz
10MHz
20MHz
(Note 2)
fOUT = 620kHz, fCLK = 5.12MHz,
offset = 500kHz
55
dBc
20
46.5
54.7
dB
81
88
7.5
MHz
-121.7
dBc/Hz
Third-Order Intermodulation
Distortion
Glitch Impulse
Spurious-Free Dynamic Range to
Nyquist
IM3
f1 = 620kHz, f2 = 640kHz
SFDR fCLK = 7.5MHz, fOUT = 620kHz
76
10
60
76.5
dBc
pV•s
dBc
Total Harmonic Distortion to
Nyquist
Signal-to-Noise Ratio to Nyquist
THD
SNR
fCLK = 7.5MHz, fOUT = 620kHz
fCLK = 7.5MHz, fOUT = 620kHz
-74.8 -59
dB
57.1
dB
_______________________________________________________________________________________ 5
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