AD698–SPECIFICATIONS

REV. B

–2–

15 V dc, unless otherwise noted)

AD698SQ

AD698AP

Parameter

Min

Typ

Max

Min

Typ

Max

Unit

TRANSFER FUNCTION

1

B

× 500 µA × R2

V

0.4

1.65

0.4

1.65

% of FS

SIGNAL OUTPUT CHARACTERISTICS

Output Voltage Range

11

11

V

11

11

mA

Short Circuit Current

20

20

mA

Nonlinearity

75

500

75

500

ppm of FS

Gain Error

3

0.1

1.0

0.1

1.0

% of FS

Gain Drift

20

100

20

100

ppm/

°C of FS

Output Offset

0.02

1

0.02

1

% of FS

Offset Drift

5

25

5

25

ppm/

°C of FS

Excitation Voltage Rejection

4

100

100

ppm/dB

Power Supply Rejection (

±12 V to ±18 V)

PSRR Gain

50

300

50

300

ppm/V

PSRR Offset

15

100

15

100

ppm/V

Common-Mode Rejection (

±3 V)

CMRR Gain

25

100

25

100

ppm/V

CMRR Offset

2

100

2

100

ppm/V

Output Ripple

5

4

4

mV rms

EXCITATION OUTPUT CHARACTERISTICS (@ 2.5 kHz)

Excitation Voltage Range

2.1

24

2.1

24

V rms

Excitation Voltage (Resistors Are 1% Absolute Values)

(R1 = Open)

6

1.2

2.15

1.2

2.15

V rms

(R1 = 12.7 k

Ω)

2.6

4.35

2.6

4.35

V rms

(R1 = 487

Ω)

14

21.2

14

21.2

V rms

Excitation Voltage TC

7

100

100

ppm/

°C

Output Current

30

50

30

50

mA rms

40

40

mA rms

Short Circuit Current

60

60

mA

DC Offset Voltage (Differential, R1 = 12.7 k

Ω)

30

100

30

100

mV

Frequency

20

20 k

20

20 k

Hz

Frequency TC

200

200

ppm/

°C

Total Harmonic Distortion

–50

–50

dB

SIGNAL INPUT CHARACTERISTICS

A/B Ratio Usable Full-Scale Range

0.1

0.9

0.l

0.9

Signal Voltage B Channel

0.1

3.5

0.1

3.5

V rms

Signal Voltage A Channel

0.0

3.5

0.0

3.5

V rms

Input Impedance

200

200

k

Ω

Input Bias Current (BIN, AIN)

1

5

1

5

µA

Signal Reference Bias Current

2

10

2

10

µA

Excitation Frequency

0

20 k

0

20 k

Hz

POWER SUPPLY REQUIREMENTS

Operating Range

13

36

13

36

V

Dual Supply Operation (

±10 V Output)

±13

±13

V

Single Supply Operation

0 V to +10 V Output

17.5

17.5

V

0 V to 10 V Output

17.5

17.5

V

Current (No Load at Signal and Excitation Outputs)

12

15

12

15

mA

18

18

mA

OPERATING TEMPERATURE RANGE

–55

+125

–40

+85

°C