LTC1740 datasheet(6/16 Pages) LINER

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LTC1740

1740f

TYPICAL PERFOR A CE CHARACTERISTICS

Spurious-Free Dynamic Range

vs Input Amplitude

S/(N + D) and SFDR

vs Sample Frequency

INPUT AMPLITUDE (dBFS)

–50

100

dBFS

dBc

–40

–30

–20

–10

1740 G07

DUAL SUPPLIES

5V INPUT RANGE

DIFFERENTIAL INPUT

6Msps

Spurious-Free Dynamic Range

vs Input Amplitude

INPUT AMPLITUDE (dBFS)

–50

100

dBFS

dBc

–40

–30

–20

–10

1740 G08

SINGLE SUPPLY

5V INPUT RANGE

DIFFERENTIAL INPUT

6Msps

SAMPLE FREQUENCY (MHz)

5678

1740 G09

DUAL SUPPLIES

5V INPUT RANGE

DIFFERENTIAL INPUT

6Msps

SFDR

S/(N + D)

S/(N + D) and SFDR

vs Sample Frequency

Nonaveraged 4096 Point FFT

SAMPLE FREQUENCY (MHz)

5678

1740 G10

SINGLE SUPPLY

5V INPUT RANGE

DIFFERENTIAL INPUT

6Msps

SFDR

S/(N + D)

FREQUENCY (MHz)

–20

–40

–60

–80

–100

–120

–140

1.5

2.5

1740 G11

0.5

DUAL SUPPLIES

6Msps

fIN = 2.5MHz, 5VP-P

DIFFERENTIAL INPUT

Nonaveraged 4096 Point FFT

FREQUENCY (MHz)

–20

–40

–60

–80

–100

–120

–140

1.5

2.5

1740 G12

0.5

SINGLE SUPPLY

6Msps

fIN = 2.5MHz, 5VP-P

DIFFERENTIAL INPUT

IDD vs Clock Frequency

ISS vs Clock Frequency

CLOCK FREQUENCY (MHz)

1740 G13

VREF = 4.5V

VREF = 2.25V

CLOCK FREQUENCY (MHz)

0.5

1.0

1.5

2.0

2.5

234

1740 G14

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