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AD679KD

14-bit 128 kSPS complete sampling ADC

Analog Devices 

AD679

DC SPECIFICATIONS (TMIN to TMAX, VCC = +12 V ؎ 5%, VEE = –12 V ؎ 5%, VDD = +5 V ؎ 10% unless otherwise noted)

Parameter

AD679J/A/S

Min

Typ

Max

AD679K/B/T

Min

Typ

Max

Units

TEMPERATURE RANGE

J, K Grades

0

+70

0

+70

°C

A, B Grades

–40

+85

–40

+85

°C

S, T Grades

–55

+125

–55

+125

°C

ACCURACY

Resolution

Integral Nonlinearity (INL)

Differential Nonlinearity (DNL)

Unipolar Zero Error1 (@ +25°C)

Bipolar Zero Error1 (@ +25°C)

Gain Error1, 2 (@ +25°C)

Temperature Drift

Unipolar Zero3

J, K Grades

A, B Grades

S, T Grades

Bipolar Zero3

J, K Grades

A, B Grades

S, T Grades

Gain3

J, K Grades

A, B Grades

S, T Grades

Gain4

J, K Grades

A, B Grades

S, T Grades

14

±2

14

0.08

0.08

0.12

0.04

0.05

0.09

0.02

0.04

0.08

0.09

0.10

0.20

0.04

0.05

0.09

14

Bits

±1

؎2

LSB

14

Bits

0.05

0.07

% FSR*

0.05

0.07

% FSR

0.09

0.11

% FSR

0.04

0.05

% FSR

0.05

0.07

% FSR

0.09

0.10

% FSR

0.02

0.04

% FSR

0.04

0.05

% FSR

0.08

0.09

% FSR

0.09

0.11

% FSR

0.10

0.16

% FSR

0.20

0.25

% FSR

0.04

0.05

% FSR

0.05

0.07

% FSR

0.09

0.10

% FSR

ANALOG INPUT

Input Ranges

Unipolar Mode

Bipolar Mode

Input Resistance

Input Capacitance

Input Settling Time

Aperture Delay

Aperture Jitter

0

+10

0

+10

V

–5

+5

–5

+5

V

10

10

MΩ

10

10

pF

1.5

1.5

µs

10

10

ns

150

150

ps

INTERNAL VOLTAGE REFERENCE

Output Voltage5

4.98

External Load

Unipolar Mode

Bipolar Mode

5.02

4.98

+1.5

+0.5

5.02

V

+1.5

mA

+0.5

mA

POWER SUPPLIES

Power Supply Rejection

VCC = +12 V ± 5%

VEE = –12 V ± 5%

VDD = +5 V ± 10%

Operating Current

ICC

IEE

IDD

Power Consumption

±6

±6

±6

18

20

25

34

8

12

560

745

؎6

LSB

؎6

LSB

؎6

LSB

18

20

mA

25

34

mA

8

12

mA

560

745

mW

NOTES

1Adjustable to zero. See Figures 5 and 6.

2Includes internal voltage reference error.

3Includes internal voltage reference drift.

4Excludes internal voltage reference drift.

5With maximum external load applied.

*% FSR = percent of full-scale range.

Specifications shown in boldface are tested on all devices at final electrical test with worst case supply voltages at TMIN, 25°C and TMAX. Results from those tests are used to

calculate outgoing quality levels. All min and max specifications are guaranteed, although only those shown in boldface are tested.

Specifications subject to change without notice.

REV. C

–3–

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