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AD673–SPECIFICATIONS

AD673J

AD673S

Model

Min

Typ

Max

Min

Typ

Max

Units

RESOLUTION

Bits

RELATIVE ACCURACY,

1/2

LSB

TA = TMIN to TMAX

1/2

LSB

FULL-SCALE CALIBRATION

±2

LSB

UNIPOLAR OFFSET

1/2

LSB

BIPOLAR OFFSET

1/2

LSB

DIFFERENTIAL NONLINEARITY,3

Bits

TA = TMIN to TMAX

Bits

TEMPERATURE RANGE

+70

–55

+125

°C

TEMPERATURE COEFFICIENTS

Unipolar Offset

LSB

Bipolar Offset

LSB

Full-Scale Calibration

LSB

POWER SUPPLY REJECTION

Positive Supply

+4.5

≤ V+ ≤ +5.5 V

LSB

Negative Supply

–15.75 V

≤ V– ≤ –14.25 V

LSB

–12.6 V

≤ V– ≤ –11.4 V

LSB

ANALOG INPUT IMPEDANCE

3.0

5.0

7.0

3.0

5.0

7.0

Ω

ANALOG INPUT RANGES

Unipolar

+10

Bipolar

–5

OUTPUT CODING

Unipolar

Positive True Binary

Bipolar

Positive True Offset Binary

LOGIC OUTPUT

Output Sink Current

(VOUT = 0.4 V max, TMIN to TMAX)

3.2

Output Source Current

(VOUT = 2.4 V min, TMIN to TMAX)

0.5

Output Leakage

µA

LOGIC INPUTS

Input Current

100

µA

Logic “1”

2.0

Logic “0”

0.8

CONVERSION TIME, TA and

TMIN to TMAX

µs

POWER SUPPLY

V+

+4.5

+5.0

+7.0

+4.5

+5.0

+7.0

V–

–11.4

–15

–16.5

–11.4

–15

–16.5

OPERATING CURRENT

V+

V–

NOTES

1Relative accuracy is defined as the deviation of the code transition points from the ideal transfer point on a straight line from the zero to the full scale of the device.

2Full-scale calibration is guaranteed trimmable to zero with an external 200

Ω potentiometer in place of the 15 Ω fixed resistor.

Full scale is defined as 10 volts minus 1 LSB, or 9.961 V.

3Defined as the resolution for which no missing codes will occur.

4The data output lines have active pull-ups to source 0 5 mA. The DATA READY line is open collector with a nominal 6 k

Ω internal pull-up resistor.

Specifications subject to change without notice.

Specifications shown in boldface are tested on all production units at final electrical test. 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 on all production units.

(TA = +25 C, V+ = +5 V, V– = –12 V or –15 V, all voltages measured with respect to

digital common, unless otherwise noted)

REV. A

–2–

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