AD679TD datasheet(3/12 Pages) AD

Part #	AD679TD

Description	14-Bit 128 kSPS Complete Sampling ADC

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DC SPECIFICATIONS

AD679J/A/S

AD679K/B/T

Parameter

Min

Typ

Max

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

14

Bits

Integral Nonlinearity (INL)

±2

±1

2

LSB

Differential Nonlinearity (DNL)

14

Bits

Unipolar Zero Error

1 (@ +25

°C)

0.08

0.05

0.07

% FSR*

Bipolar Zero Error

1 (@ +25

°C)

0.08

0.05

0.07

% FSR

Gain Error1, 2 (@ +25

°C)

0.12

0.09

0.11

% FSR

Temperature Drift

Unipolar Zero

3

J, K Grades

0.04

0.05

% FSR

A, B Grades

0.05

0.07

% FSR

S, T Grades

0.09

0.10

% FSR

Bipolar Zero3

J, K Grades

0.02

0.04

% FSR

A, B Grades

0.04

0.05

% FSR

S, T Grades

0.08

0.09

% FSR

Gain

3

J, K Grades

0.09

0.11

% FSR

A, B Grades

0.10

0.16

% FSR

S, T Grades

0.20

0.25

% FSR

Gain

4

J, K Grades

0.04

0.05

% FSR

A, B Grades

0.05

0.07

% FSR

S, T Grades

0.09

0.10

% FSR

ANALOG INPUT

Input Ranges

Unipolar Mode

0

+10

0

+10

V

Bipolar Mode

–5

+5

–5

+5

V

Input Resistance

10

M

Ω

Input Capacitance

10

pF

Input Settling Time

1.5

µs

Aperture Delay

10

ns

Aperture Jitter

150

ps

INTERNAL VOLTAGE REFERENCE

Output Voltage

5

4.98

5.02

4.98

5.02

V

External Load

Unipolar Mode

+1.5

mA

Bipolar Mode

+0.5

mA

POWER SUPPLIES

Power Supply Rejection

VCC = +12 V ± 5%

±6

6

LSB

VEE = –12 V ± 5%

±6

6

LSB

VDD = +5 V ± 10%

±6

6

LSB

Operating Current

ICC

18

20

18

20

mA

IEE

25

34

25

34

mA

IDD

8

12

8

12

mA

Power Consumption

560

745

560

745

m

W

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.

(TMIN to TMAX, VCC = +12 V

5%, VEE = –12 V

5%, VDD = +5 V

10% unless otherwise noted)

AD679

REV. C

–3–

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