LTC1748CFW datasheet(3/20 Pages) LINER

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LTC1748

1748fa

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VCM Output Voltage

IOUT = 0

2.30

2.35

2.40

VCM Output Tempco

IOUT = 0

±30

ppm/

°C

VCM Line Regulation

4.75V

≤ VDD ≤ 5.25V

mV/V

VCM Output Resistance

1mA

≤ IOUT ≤ 1mA

Ω

(Note 5)

I TER AL REFERE CE CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

SNR

Signal-to-Noise Ratio

5MHz Input Signal (2V Range)

72.6

5MHz Input Signal (3.2V Range)

76.3

30MHz Input Signal (2V Range)

72.5

30MHz Input Signal (3.2V Range)

76.1

70MHz Input Signal (2V Range)

72.2

70MHz Input Signal (3.2V Range)

75.4

140MHz Input Signal (2V Range)

71.4

250MHz Input Signal (2V Range)

68.9

SFDR

Spurious Free Dynamic Range

5MHz Input Signal (2V Range)

5MHz Input Signal (3.2V Range) (2nd and 3rd)

5MHz Input Signal (3.2V Range) (Other)

30MHz Input Signal (2V Range)

30MHz Input Signal (3.2V Range) (2nd and 3rd)

30MHz Input Signal (3.2V Range) (Other)

70MHz Input Signal (2V Range)

70MHz Input Signal (3.2V Range) (2nd and 3rd)

70MHz Input Signal (3.2V Range) (Other)

140MHz Input Signal (2VRange) (2nd and 3rd)

140MHz Input Signal (2V Range) (Other)

250MHz Input Signal (2V Range) (2nd and 3rd)

250MHz Input Signal (2V Range) (Other)

S/(N + D)

Signal-to-(Noise + Distortion) Ratio

5MHz Input Signal (2V Range)

72.4

5MHz Input Signal (3.2V Range)

74.5

76.0

30MHz Input Signal (2V Range)

72.3

30MHz Input Signal (3.2V Range)

75.6

70MHz Input Signal (2V Range)

70MHz Input Signal (3.2V Range)

THD

Total Harmonic Distortion

5MHz Input Signal, First 5 Harmonics (2V Range)

–90

5MHz Input Signal, First 5 Harmonics (3.2V Range)

–90

30MHz Input Signal, First 5 Harmonics (2V Range)

–90

30MHz Input Signal, First 5 Harmonics (3.2V Range)

–85

70MHz Input Signal, First 5 Harmonics (2V Range)

–78

70MHz Input Signal, First 5 Harmonics (3.2V Range)

–74

IMD

Intermodulation Distortion

fIN1 = 2.52MHz, fIN2 = 5.2MHz (2V Range)

dBc

fIN1 = 2.52MHz, fIN2 = 5.2MHz (3.2V Range)

dBc

Sample-and-Hold Bandwidth

RSOURCE = 50Ω

240

MHz

TA = 25°C, AIN = –1dBFS (Note 5)

DY A IC ACCURACY

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