Rainbow-electronics MAX1215 Manual do Utilizador descarregar pdf (Página 3)

MAX1215

1.8V, 12-Bit, 250Msps ADC for

Broadband Applications

_______________________________________________________________________________________ 33 ____________________________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(AV

= OV

= 1.8V, AGND = OGND = 0, f

SAMPLE

= 250MHz, differential sine-wave clock input drive, 0.1µF capacitor on REFIO,

internal reference, digital output pins differential R

= 100Ω±1%, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

= +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

CLOCK INPUTS (CLKP, CLKN)

Differential Clock Input Amplitude

(Note 3)

200 500

P-P

Clock Input Common-Mode

Voltage Range

Internally self-biased 1.15 ±0.25 V

Clock Differential Input

Resistance

CLK

±25%

kΩ

Clock Differential Input

Capacitance

CLK

5pF

DYNAMIC CHARACTERISTICS (at -1dBFS)

= 10MHz, T

≥ +25°C

63.5

= 100MHz, T

≥ +25°C

63.4 65.5

= 200MHz

65.5

Signal-to-Noise

Ratio

SNR

= 250MHz 65

= 10MHz, T

≥ +25°C

63.5 65.8

= 100MHz, T

≥ +25°C62

64.3

= 200MHz

63.2

Signal-to-Noise

and Distortion

SINAD

= 250MHz

64.2

= 10MHz, T

≥ +25°C7084

= 100MHz, T

≥ +25°C67

70.7

= 200MHz

67.1

Spurious-Free

Dynamic Range

SFDR

= 250MHz

72.4

dBc

= 10MHz, T

≥ +25°C -87 -70

= 100MHz, T

≥ +25°C

-70.7

-67

= 200MHz

-67.1

Worst Harmonics

(HD2 or HD3)

= 250MHz

-72.4

dBc

Two-Tone Intermodulation

Distortion

TTIMD

IN1

= 99MHz at -7dBFS,

IN2

= 101MHz at -7dBFS

-79

dBc

Noise-Power Ratio NPR

NOTCH

= 28.8MHz ±1MHz,

noise BW = 50MHz, A

= -9.1dBFS

65.4

LVDS DIGITAL OUTPUTS (D0P/N–D11P/N, ORP/N)

Differential Output Voltage |V

= 100Ω ±1%

250

400 mV

Output Offset Voltage OV

= 100Ω ±1%

1.125 1.310

1 2 3 4 5 6 7 8 ... 19 20

Broadband Applications 1

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