MAX1211(2003) Ver la hoja de datos (PDF) - Maxim Integrated
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MAX1211 Datasheet PDF : 29 Pages
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65Msps, 12-Bit, IF Sampling ADC
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 3.3V, OVDD = 2.0V, GND = 0, REFIN = REFOUT (internal reference), CREFOUT = 0.1µF, CL ≈ 5pF at digital outputs, VIN =
-0.2dBFS, CLKTYP = high, PD = low, G/T = low, fCLK = 65MHz (50% duty cycle), CREFP = CREFN = 0.1µF to GND, 10µF between
REFP and REFN, CCOM = 0.1µF in parallel with 2.2µF to GND, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Total Harmonic Distortion
THD
fIN = 32.4MHz at -0.2dBFS
fIN = 175MHz at -0.2dBFS
fIN = 250MHz at -0.2dBFS
-79
-73
dBc
-67.3
Third-Order Intermodulation
IM3
fIN1 = 247.2MHz at -7dBFS
fIN2 = 253.6MHz at -7dBFS
-73.3
dBc
Full-Power Bandwidth
FPBW Input at -0.2dBFS, -3dB rolloff
700
MHz
Aperture Delay
Aperture Jitter
Output Noise
tAD
tAJ
nOUT
INP = INN = COM
0.9
<0.2
0.6
ns
psRMS
LSBRMS
Overdrive Recovery Time
±10% beyond full scale
1
Clock
cycles
INTERNAL REFERENCE (REFIN = REFOUT; VREFP, VREFN, and VCOM are generated internally)
REFOUT Output Voltage
VREFOUT
1.9 2.048 2.1
V
COM Output Voltage
VCOM VDD / 2
1.65
V
Differential Reference Output
Voltage
VREF
VREF = VREFP - VREFN
1.024
V
REFOUT Load Regulation
35
mV/mA
REFOUT Temperature Coefficient
REFOUT Short-Circuit Current
TCREF
Short to VDD
Short to GND
+100
0.24
2.1
ppm/°C
mA
BUFFERED EXTERNAL REFERENCE (REFIN driven externally, VREFIN = 2.048V, VREFP, VREFN, and VCOM are generated internally)
REFIN Input Voltage
VREFIN
2.048
V
REFP Output Voltage
VREFP (VDD / 2) + (VREFIN / 4)
2.162
V
REFN Output Voltage
VREFN (VDD / 2) - (VREFIN / 4)
1.138
V
COM Output Voltage
VCOM VDD / 2
1.6
1.65
1.7
V
Differential Reference Output
Voltage
VREF
VREF = VREFP - VREFN
1.024
V
Maximum REFP Current
IREFP
Source
Sink
0.4
mA
1.4
Maximum COM Current
IREFP
Source
Sink
1.0
mA
0.4
Maximum REFN Current
IREFP
Source
Sink
1.0
mA
1.0
REFIN Input Resistance
>50
MΩ
_______________________________________________________________________________________ 3
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