AD598 查看數據表（PDF） - Analog Devices

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AD598

LVDT Signal Conditioner

Analog Devices 

AD598–SPECIFICATIONS (typical @ +25؇C and ؎15 V dc, C1 = 0.015 ␮F, R2 = 80 k⍀, RL = 2 k⍀,

unless otherwise noted. See Figure 7.)

Parameter

AD598J

AD598A

Min Typ Max Min Typ Max

Unit

TRANSFER FUNCTION1

VOUT

= VA

VA

– VB

+VB

× 500 µA × R2

OVERALL ERROR2

TMIN to TMAX

SIGNAL OUTPUT CHARACTERISTICS

Output Voltage Range (TMIN to TMAX)

Output Current (TMIN to TMAX)

Short Circuit Current

Nonlinearity3 (TMIN to TMAX)

Gain Error4

Gain Drift

Offset5

Offset Drift

Excitation Voltage Rejection6

Power Supply Rejection (± 12 V to ± 18 V)

PSRR Gain (TMIN to TMAX)

PSRR Offset (TMIN to TMAX)

Common-Mode Rejection (± 3 V)

CMRR Gain (TMIN to TMAX)

CMRR Offset (TMIN to TMAX)

Output Ripple7

0.6 2.35

0.6 1.65

؎11

8

20

75

0.4

20

0.3

7

100

300 100

100 15

100 25

100 6

4

؎11

6

20

؎500

75

؎1

0.4

؎100

20

؎1

0.3

؎200

7

100

400 100

200 15

200 25

200 6

4

؎500

؎1

؎50

؎1

؎50

EXCITATION OUTPUT CHARACTERISTICS (@ 2.5 kHz)

Excitation Voltage Range

2.1

Excitation Voltage

(R1 = Open)8

1.2

(R1 = 12.7 kΩ)8

2.6

(R1 = 487 Ω)8

14

Excitation Voltage TC9

Output Current

30

TMIN to TMAX

12

Short Circuit Current

DC Offset Voltage (Differential, R1 = 12.7 kΩ)

TMIN to TMAX

Frequency

20

Frequency TC, (R1 = 12.7 kΩ)

Total Harmonic Distortion

24 2.1

2.1 1.2

4.1 2.6

20 14

600

30

12

60

30 ؎100

20k 20

200

–50

24

2.1

4.1

20

600

60

30 ؎100

20k

200

–50

SIGNAL INPUT CHARACTERISTICS

Signal Voltage

Input Impedance

Input Bias Current (AIN and BIN)

Signal Reference Bias Current

Excitation Frequency

0.1

3.5 0.1

3.5

200

200

1

5

1

5

2

10

2

10

0

20 0

20

POWER SUPPLY REQUIREMENTS

Operating Range

Dual Supply Operation (± 10 V Output)

Single Supply Operation

0 to +10 V Output

0 to –10 V Output

Current (No Load at Signal and Excitation Outputs)

TMIN to TMAX

TEMPERATURE RANGE

JR (SOIC)

AD (DIP)

13

36 13

36

± 13

± 13

17.5

17.5

17.5

17.5

12 15

12 15

16

18

0

+70

–40

+85

PACKAGE OPTION

SOIC (R-20)

Side Brazed DIP (D-20)

AD598JR

AD598AD

V

% of FS

V

mA

mA

ppm of FS

% of FS

ppm/°C of FS

% of FS

ppm/°C of FS

ppm/dB

ppm/V

ppm/V

ppm/V

ppm/V

mV rms

V rms

V rms

V rms

V rms

ppm/°C

mA rms

mA rms

mA

mV

Hz

ppm/°C

dB

V rms

kΩ

µA

µA

kHz

V

V

V

V

mA

mA

°C

°C

–2–

REV. A

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