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AD679JNZ

14-Bit 128 kSPS Complete Sampling ADC

Analog Devices 

AD679–SPECIFICATIONS

AC SPECIFICATIONS (TMIN to TMAX, VCC = +12 V ؎ 5%, VEE = –12 V ؎ 5%, VDD = +5 V ؎ 10%, fSAMPLE = 128 kSPS, fIN = 10.009 kHz,

unless otherwise noted)1

Parameter

AD679J/A/S

AD679K/B/T

Min Typ Max Min Typ Max Unit

SIGNAL-TO-NOISE AND DISTORTION (S/N+D) RATIO2

–0.5 dB Input (Referred to –0 dB Input)

76

79

78

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)3

@ 25°C

TMIN to TMAX

–90

0.003

–88

0.004

–82

0.006

–82

0.008

–90 –82 dB

0.003 0.006 %

–88 –82 dB

0.004 0.008 %

PEAK SPURIOUS OR PEAK HARMONIC COMPONENT

–90 –82

–90 –82 dB

FULL POWER BANDWIDTH

1

1

MHz

FULL LINEAR BANDWIDTH

500

500

kHz

INTERMODULATION DISTORTION (IMD)4

2nd Order Products

3rd Order Products

–90 –82

–90 –82

–90 –82 dB

–90 –82 dB

NOTES

1flN 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.

2See TPC 3 for higher frequencies and other input amplitudes.

3See TPCs 1 and 2 for higher frequencies and other input amplitudes.

4fA = 9.08 kHz, fB = 9.58 kHz, with fSAMPLE 100 kSPS. See Definition of Specifications section.

Specifications subject to change without notice.

DIGITAL SPECIFICATIONS (All device types TMIN to TMAX, VCC = +12 V ؎ 5%, VEE = –12 V ؎ 5%, VDD = +5 V ؎ 10%)

Parameter

Test Conditions

Min

Max

Unit

LOGIC INPUTS

VIH

High Level Input Voltage

VIL

Low Level Input Voltage

IIH

High Level Input Current

IIL

Low Level Input Current

CIN

Input Capacitance

VIN = 5 V

VIN = 0 V

2.0

VDD

V

0

0.8

V

–10

+10

µA

–10

+10

µA

10

pF

LOGIC OUTPUTS

VOH

High Level Output Voltage

VOL

Low Level Output Voltage

IOZ

High Z Leakage Current

COZ

High Z Output Capacitance

IOH = 0.1 mA

IOH = 0.5 mA

IOL = 1.6 mA

VIN = 0 or 5 V

4.0

V

2.4

V

0.4

V

–10

+10

µA

10

pF

NOTES

1flN 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.

2See TPC 3 for higher frequencies and other input amplitudes.

3See TPCs 1 and 2 for higher frequencies and other input amplitudes.

4fA = 9.08 kHz, fB = 9.58 kHz, with fSAMPLE 100 kSPS. See Definition of Specifications section.

Specifications subject to change without notice.

–2–

REV. D

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