LTC1742IFW データシートの表示（PDF） - Linear Technology

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LTC1742IFW

14-Bit, 65Msps Low Noise ADC

Linear Technology 

LTC1742

ELECTRICAL CHARACTERISTICS

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 ground with GND

(unless otherwise noted).

Note 3: When these pin voltages are taken below GND or above VDD, they

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

of greater than 100mA below GND or above VDD without latchup.

Note 4: When this pin voltage is taken below GND or above OVDD, it will be

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

>100mA below GND or above OVDD without latchup.

Note 5: VDD = 5V, fSAMPLE = 65MHz, differential ENC/ENC = 2VP-P 65MHz

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.

TYPICAL PERFOR A CE CHARACTERISTICS

INL, 3.2V Range

2.5

TA = 25°C

2.0

1.5

1.0

0.5

0

–0.5

–1.0

–1.5

–2.0

–2.5

0

4096

8192

12288

OUTPUT CODE

16384

1742 G01

8192 Point FFT,

Input Frequency = 15MHz,

–10dB, 3.2V Range

0

–10

TA = 25°C

–20

–30

–40

–50

–60

–70

–80

–90

–100

–110

–120

0

5 10 15 20 25

FREQUENCY (MHz)

30

1742 G04

DNL, 3.2V Range

1.0

TA = 25°C

0.8

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

–0.8

–1.0

0

4096

8192 12288

OUTPUT CODE

16384

1742 G02

8192 Point FFT,

Input Frequency = 15MHz,

–20dB, 3.2V Range

0

–10

TA = 25°C

–20

–30

–40

–50

–60

–70

–80

–90

–100

–110

–120

0

5 10 15 20 25

FREQUENCY (MHz)

30

1742 G05

8192 Point FFT,

Input Frequency = 15MHz,

–1dB, 3.2V Range

0

–10

TA = 25°C

–20

–30

–40

–50

–60

–70

–80

–90

–100

–110

–120

0

5 10 15 20 25

FREQUENCY (MHz)

30

1742 G03

8192 Point FFT,

Input Frequency = 30MHz,

–1dB, 3.2V Range

0

–10

TA = 25°C

–20

–30

–40

–50

–60

–70

–80

–90

–100

–110

–120

0

5 10 15 20 25

FREQUENCY (MHz)

30

1742 G06

1742f

5

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