AD779KN datasheet(2/12 Pages) AD

No de pièce	AD779KN

Description	14-Bit 128 kSPS Complete Sampling ADC

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Fabricant	AD [Analog Devices]

Site Internet	http://www.analog.com

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REV. B

–2–

AD779–SPECIFICATIONS

AC SPECIFICATIONS

AD779J/A/S

AD779K/B/T

Parameter

Min

Typ

Max

Min

Typ

Max

Units

SIGNAL-TO-NOISE AND DISTORTION (S/N+D) RATIO

–0.5 dB Input (Referred to 0 dB Input)

78

79

80

81

dB

–20 dB Input (Referred to –20 dB Input)

58

59

60

61

dB

–60 dB Input (Referred to –60 dB Input)

18

19

20

21

dB

TOTAL HARMONIC DISTORTION (THD)

@ +25

°C

–90

–84

–90

–84

dB

0.003

0.006

0.003

0.006

%

TMIN to TMAX

–88

–82

–88

–82

dB

0.004

0.008

0.004

0.008

%

PEAK SPURIOUS OR PEAK HARMONIC COMPONENT

–90

–84

–90

–84

dB

FULL POWER BANDWIDTH

1

MHz

FULL LINEAR BANDWIDTH

500

kHz

INTERMODULATION DISTORTION (IMD)

2

2nd Order Products

–90

–84

–90

–84

dB

3rd Order Products

–90

–84

–90

–84

dB

DIGITAL SPECIFICATIONS

Parameter

Test Conditions

Min

Max

Units

LOGIC INPUTS

VIH

High Level Input Voltage

2.0

VDD

V

VIL

Low Level Input Voltage

0

0.8

V

IIH

High Level Input Current

VIN = VDD

–10

+10

µA

IIL

Low Level Input Current

VIN = 0 V

–10

+10

µA

CIN

Input Capacitance

10

pF

LOGIC OUTPUTS

VOH

High Level Output Voltage

IOH = 0.1 mA

4.0

V

IOH = 0.5 mA

2.4

V

VOL

Low Level Output Voltage

IOL = 1.6 mA

0.4

V

IOZ

High Z Leakage Current

VIN = VDD

–10

+10

µA

COZ

High Z Output Capacitance

10

pF

NOTES

1f

IN amplitude = –0.5 dB (9.44 V p-p) bipolar mode full scale unless otherwise indicated. All measurements referred to a –0 dB (9.997 V p-p) input signal

unless otherwise noted.

2f

A = 9.08 kHz, fB = 9.58 kHz, with fSAMPLE = 128 kSPS.

Specifications subject to change without notice.

(TMIN to TMAX, VCC = +12 V

5%, VEE = –12 V

5%, VDD = +5 V

10%, fSAMPLE = 128 kSPS,

flN = 10.009 kHz unless otherwise noted)

1

(All device types TMIN to TMAX, VCC = +12 V

5%, VEE = –12 V

5%, VDD = +5 V

10%)

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