Rainbow Electronics MAX1211 - Manual (Page 3)

MAX1211
65Msps, 12-Bit, IF Sampling ADC
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ELECTRICAL CHARACTERISTICS (continued)
(V DD = 3.3V, OV DD = 2.0V, GND = 0, REFIN = REFOUT (internal reference), C REFOUT = 0.1µF, C L
≈ 5pF at digital outputs, V
IN = -
0.5dBFS, CLKTYP = high, DCE = high, PD = low, G/T = low, f CLK = 65MHz (50% duty cycle), C REFP = C REFN = 0.1µF, 1µF in parallel with
10µF between REFP and REFN, C COM = 0.1µF in parallel with 2.2µF to GND, T A = -40°C to +85°C, unless otherwise noted. Typical values
are at T A = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
f IN = 3MHz at -0.5dBFS (Note 3) -89.3 -80.0
f IN = 70MHz at -0.5dBFS (Note 3) -81.3 -73.6 Total Harmonic Distortion THD
f IN = 175MHz at -5dBFS -78.7 -73.6
dBc
Second Harmonic HD2 f IN1 = 70MHz at -5dBFS -82.4 -74.0 dBc
Third Harmonic HD3 f IN = 70MHz at -0.5dBFS (Note 3) -90.9 -84.6 dBc
f IN1 = 68.5MHz at -7dBFS
f IN2 = 71.5MHz at -7dBFS
-82.4
Third-Order Intermodulation IM3
f IN1 = 172.5MHz at -7dBFS
f IN2 = 177.5MHz at -7dBFS
-81.2
dBc
Full-Power Bandwidth FPBW Input at -0.5dBFS, -3dB rolloff 700 MHz
Aperture Delay t AD Figure 14 0.9 ns
Aperture Jitter t AJ Figure 14 <0.2 ps RMS
Output Noise n OUT INP = INN = COM 0.5 LSB RMS
Overdrive Recovery Time ±10% beyond full scale 1
Clock
cycles
INTERNAL REFERENCE (REFIN = REFOUT; V REFP , V REFN , and V COM are generated internally)
REFOUT Output Voltage V REFOUT 1.996 2.048 2.071 V
COM Output Voltage V
COM
V
DD
/ 2 1.65 V
Differential Reference Output
Voltage
V REF V REF = V REFP - V REFN 1.024 V
REFOUT Load Regulation 35 mV/mA
REFOUT Temperature Coefficient TC REF +100 ppm/°C
Short to V DD 0.24
REFOUT Short-Circuit Current
Short to GND 2.1
mA
B U F F ER ED EXT ER N A L R EF ER EN C E ( RE FIN d r i ven exter nal l y, V R E F IN = 2.048V , V R E F P , V R E F N , and V C OM ar e g ener ated i nter nal l y)
REFIN Input Voltage V
REFIN
2.048 V
REFP Output Voltage V REFP (V DD / 2) + (V REFIN / 4) 2.162 V
REFN Output Voltage V REFN (V DD / 2) - (V REFIN / 4) 1.138 V
COM Output Voltage V COM V DD / 2 1.60 1.65 1.70 V
Differential Reference Output
Voltage
V REF V REF = V REFP - V REFN 0.978 1.024 1.059 V
Differential Reference
Temperature Coefficient
+12.5 ppm/°C
Source 0.4
Maximum REFP Current I REFP
Sink 1.4
mA
Source 1.0
Maximum REFN Current I REFN
Sink 1.0
mA