AD667 datasheet(2/8 Pages) AD

2 / 8 page

TIMING SPECIFICATIONS

(All Models, TA = +25°C, VCC = +12 V or +15 V, VEE = –12 V or –15 V)

Symbol

Parameter

Min

Typ

Max

tDC

Data Valid to End of CS

–

tAC

Address Valid to End of CS

100

tCP

Pulse Width

100

–

tDH

Data Hold Time

–

tSETT

Output Voltage Settling Time

–

µs

AD667–SPECIFICATIONS (@ T

A = +25 C,

12 V,

15 V power supplies unless otherwise noted)

Model

AD667J

AD667K

Min

Typ

Max

Min

Typ

Max

Units

DIGITAL INPUTS

Resolution

Bits

Logic Levels (TTL, Compatible, TMIN–TMAX)

VIH (Logic “l’’)

+2.0

+5.5

+2.0

+5.5

VIL (Logic “0”)

+0.8

IIH (VIH = 5.5 V)

µA

IIL (VIL = 0.8 V)

µA

TRANSFER CHARACTERISTICS

ACCURACY

Linearity Error @ +25

°C

+1/4

1/2

± 1/8

1/4

LSB

TA = TMIN to TMAX

± 1/2

3/4

± 1/4

1/2

LSB

Differential Linearity Error @ +25

°C

± 1/2

3/4

± 1/4

1/2

LSB

TA = TMIN to TMAX

Monotonicity Guaranteed

LSB

Gain Error

± 0.1

0.2

± 0.1

0.2

% FSR

Unipolar Offset Error

± 1

LSB

Bipolar Zero

± 0.05

0.1

± 0.05

0.1

% of FSR

DRIFT

Differential Linearity

± 2

ppm of FSR/

°C

Gain (Full Scale) TA = 25°C to TMIN or TMAX

± 5

± 30

± 5

± 15

ppm of FSR/

°C

Unipolar Offset TA = –25°C to TMIN or TMAX

± 1

± 3

ppm of FSR/

°C

Bipolar Zero TA = 25°C to TMIN or TMAX

± 5

± 10

ppm of FSR/

°C

CONVERSION SPEED

Settling Time to

± 0.01% of FSR for

FSR Change (2 k

Ω 500 pF Load)

with 10 k

Ω Feedback

µs

with 5 k

Ω Feedback

µs

For LSB Change

µs

Slew Rate

µs

ANALOG OUTPUT

Ranges

± 2.5, ±5, ± 10,

± 2.5, ±5, ±10,

+5, +10

Output Current

± 5

± 5mA

Output Impedance (DC)

0.05

Ω

Short Circuit Current

REFERENCE OUTPUT

9.90

10.00

10.10

9.90

10.00

10.10

External Current

0.1

1.0

0.1

1.0

POWER SUPPLY SENSITIVITY

VCC = +11.4 V to +16.5 V dc

ppm of FS/%

VEE = –11.4 V to –16.5 V dc

ppm of FS/%

POWER SUPPLY REQUIREMENTS

Rated Voltages

± 12, ± 15

Range

11.4

16.5

11.4

16.5

Supply Current

+11.4 V to +16.5 V dc

–11.4 V to –16.5 V dc

TEMPERATURE RANGE

Specification

+70

°C

Storage

–65

+125

–65

+125

°C

NOTES

1The digital input specifications are 100% tested at +25

°C, and guaranteed but not tested over the full temperature range.

2Adjustable to zero.

3FSR means “Full-Scale Range” and is 20 V for

±10 V range and 10 V for the ±5 V range.

4A minimum power supply of

±12.5 V is required for a ±10 V full-scale output and ±11.4 V is required for all other voltage ranges.

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.

ABSOLUTE MAXIMUM RATINGS

VCC to Power Ground . . . . . . . . . . . . . . . . . . . . . 0 V to +18 V

VEE to Power Ground . . . . . . . . . . . . . . . . . . . . . 0 V to –18 V

Digital Inputs (Pins 11–15, 17–28)

to Power Ground . . . . . . . . . . . . . . . . . . . . –1.0 V to +7.0 V

Ref In to Reference Ground . . . . . . . . . . . . . . . . . . . . . .

±12 V

Bipolar Offset to Reference Ground . . . . . . . . . . . . . . . .

±12 V

10 V Span R to Reference Ground . . . . . . . . . . . . . . . . .

±12 V

20 V Span R to Reference Ground . . . . . . . . . . . . . . . . .

±24 V

Ref Out, VOUT (Pins 6, 9) . . Indefinite Short to Power Ground

. . . . . . . . . . . . . . . . . . . . . . . . . . . Momentary Short to VCC

Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . 1000 mW

REV. A

–2–

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