5

LTC1748

1748fa

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: All voltage values are with respect to GND (unless otherwise

noted).

will be clamped by internal diodes. This product can handle input currents

Note 4: When these pin voltages are taken below GND, they will be

clamped by internal diodes. This product can handle input currents of

sine wave, input range =

±1.6V differential, unless otherwise specified.

Note 6: Integral nonlinearity is defined as the deviation of a code from a

straight line passing through the actual endpoints of the transfer curve.

The deviation is measured from the center of the quantization band.

Note 7: Bipolar offset is the offset voltage measured from – 0.5 LSB

when the output code flickers between 00 0000 0000 0000 and 11

1111 1111 1111.

Note 8: Guaranteed by design, not subject to test.

Note 9: Recommended operating conditions.

ELECTRICAL CHARACTERISTICS

TYPICAL PERFOR A CE CHARACTERISTICS

INL, 3.2V Range

DNL, 3.2V Range

8192 Point FFT,

Input Frequency = 15.068MHz,

–1dB, 3.2V Range

FREQUENCY (MHz)

0

–60

–30

–20

40

1748 G03

–70

–80

–120

10

20

30

5

15

25

35

–100

0

–10

–40

–50

–90

–110

8192 Point FFT,

Input Frequency = 15.068MHz,

–10dB, 3.2V Range

FREQUENCY (MHz)

0

–60

–30

–20

40

1748 G04

–70

–80

–120

10

20

30

5

15

25

35

–100

0

–10

–40

–50

–90

–110

8192 Point FFT,

Input Frequency = 15.068MHz,

–20dB, 3.2V Range

FREQUENCY (MHz)

0

–60

–30

–20

40

1748 G05

–70

–80

–120

10

20

30

5

15

25

35

–100

0

–10

–40

–50

–90

–110

8192 Point FFT,

Input Frequency = 30.068MHz,

–1dB, 3.2V Range

FREQUENCY (MHz)

0

–60

–30

–20

40

1748 G06

–70

–80

–120

10

20

30

5

15

25

35

–100

0

–10

–40

–50

–90

–110

OUTPUT CODE

0

–2.5

–2.0

–1.0

–0.5

0

2.5

1.0

4096

8192

1748 G01

–1.5

1.5

2.0

0.5

12288

16384

OUTPUT CODE

0

–1.0

–0.8

–0.4

–0.2

0

1.0

0.4

4096

8192

1748 G02

–0.6

0.6

0.8

0.2

12288

16384