Rainbow-electronics MAX1211 Bedienungsanleitung PDF herunterladen (Seite 3)

MAX1211

65Msps, 12-Bit, IF Sampling ADC

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

= 3.3V, OV

= 2.0V, GND = 0, REFIN = REFOUT (internal reference), C

REFOUT

= 0.1µF, C

≈ 5pF at digital outputs, V

= -

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

= -40°C to +85°C, unless otherwise noted. Typical values

are at T

= +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

= 3MHz at -0.5dBFS (Note 3)

-89.3 -80.0

= 70MHz at -0.5dBFS (Note 3)

-81.3 -73.6

Total Harmonic Distortion THD

= 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

= 70MHz at -0.5dBFS (Note 3)

-90.9 -84.6

dBc

IN1

= 68.5MHz at -7dBFS

IN2

= 71.5MHz at -7dBFS

-82.4

Third-Order Intermodulation IM3

IN1

= 172.5MHz at -7dBFS

IN2

= 177.5MHz at -7dBFS

-81.2

dBc

Full-Power Bandwidth FPBW Input at -0.5dBFS, -3dB rolloff 700

MHz

Aperture Delay t

Figure 14 0.9 ns

Aperture Jitter t

Figure 14

<0.2

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

REFOUT

1.996 2.048 2.071

COM Output Voltage V

COM

/ 2

1.65

Differential Reference Output

Voltage

REF

= V

REFP

- V

REFN

1.024

REFOUT Load Regulation 35

mV/mA

REFOUT Temperature Coefficient

REF

+100

ppm/°C

Short to V

0.24

REFOUT Short-Circuit Current

Short to GND 2.1

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

REFP Output Voltage V

REFP

/ 2) + (V

REFIN

/ 4)

2.162

REFN Output Voltage V

REFN

/ 2) - (V

REFIN

/ 4)

1.138

COM Output Voltage V

COM

/ 2

1.60 1.65 1.70

Differential Reference Output

Voltage

REF

= V

REFP

- V

REFN

0.978 1.024 1.059

Differential Reference

Temperature Coefficient

+12.5

ppm/°C

Source 0.4

Maximum REFP Current I

REFP

Sink 1.4

Source 1.0

Maximum REFN Current I

REFN

Sink 1.0

1 2 3 4 5 6 7 8 ... 29 30

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