ADC PWR-AVIS Manual de usuario descargar pdf (Pagina 3)

LTC2245

2245fa

The ● denotes the specifications which apply over the full operating temperature range,

otherwise specifications are at T

= 25°C. A

= –1dBFS. (Note 4)

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

SNR Signal-to-Noise Ratio 5MHz Input ● 72.3 74.4 dB

70MHz Input 73.2 dB

SFDR Spurious Free Dynamic Range 5MHz Input ● 76 90 dB

2nd or 3rd Harmonic 70MHz Input 85 dB

SFDR Spurious Free Dynamic Range 5MHz Input ● 84 95 dB

4th Harmonic or Higher 70MHz Input 95 dB

S/(N+D) Signal-to-Noise Plus Distortion Ratio 5MHz Input ● 71.7 74.4 dB

70MHz Input 73.1 dB

Intermodulation Distortion f

IN1

= 4.3MHz, f

IN2

= 4.6MHz 90 dB

DY A IC ACCURACY

PARAMETER CONDITIONS MIN TYP MAX UNITS

Output Voltage I

OUT

= 0 1.475 1.500 1.525 V

Output Tempco ±25 ppm/°C

Line Regulation 2.7V < V

< 3.4V 3 mV/V

Output Resistance –1mA < I

OUT

< 1mA 4 Ω

I TER AL REFERE CE CHARACTERISTICS

UU U

(Note 4)

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

Analog Input Range (A

– A

–

) 2.7V < V

< 3.4V (Note 7) ● ±0.5V to ±1V V

IN,CM

Analog Input Common Mode (A

+ A

–

)/2 Differential Input (Note 7) ● 1 1.5 1.9 V

Single Ended Input (Note 7)

● 0.5 1.5 2 V

Analog Input Leakage Current 0V < A

, A

–

< V

● –1 1 µA

SENSE

SENSE Input Leakage 0V < SENSE < 1V ● –3 3 µA

MODE

MODE Pin Leakage ● –3 3 µA

Sample-and-Hold Acquisition Delay Time 0 ns

JITTER

Sample-and-Hold Acquisition Delay Time Jitter 0.2 ps

RMS

CMRR Analog Input Common Mode Rejection Ratio 80 dB

A ALOG I PUT

The ● denotes the specifications which apply over the full operating temperature range, otherwise

specifications are at T

= 25°C. (Note 4)

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

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ADC PWR-AVIS Manual de usuario Pagina 3

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