Datasheet

AD598–SPECIFICATIONS
(typical @ +258C and 615 V dc, C1 = 0.015 mF, R2 = 80 kV, R
L
= 2 kV,
unless otherwise noted. See Figure 7.)
REV. A
–2–
AD598J AD598A
Parameter Min Typ Max Min Typ Max Unit
TRANSFER FUNCTION
1
V
OUT
=
V
A
–V
B
V
A
+V
B
× 500 µA × R2
V
OVERALL ERROR
2
T
MIN
to T
MAX
0.6 2.35 0.6 1.65 % of FS
SIGNAL OUTPUT CHARACTERISTICS
Output Voltage Range (T
MIN
to T
MAX
) 611 611 V
Output Current (T
MIN
to T
MAX
)86mA
Short Circuit Current 20 20 mA
Nonlinearity
3
(T
MIN
to T
MAX
)756500 75 6500 ppm of FS
Gain Error
4
0.4 61 0.4 61 % of FS
Gain Drift 20 6100 20 650 ppm/°C of FS
Offset
5
0.3 61 0.3 61 % of FS
Offset Drift 7 6200 7 650 ppm/°C of FS
Excitation Voltage Rejection
6
100 100 ppm/dB
Power Supply Rejection (±12 V to ±18 V)
PSRR Gain (T
MIN
to T
MAX
) 300 100 400 100 ppm/V
PSRR Offset (T
MIN
to T
MAX
) 100 15 200 15 ppm/V
Common-Mode Rejection (±3 V)
CMRR Gain (T
MIN
to T
MAX
) 100 25 200 25 ppm/V
CMRR Offset (T
MIN
to T
MAX
) 100 6 200 6 ppm/V
Output Ripple
7
4 4 mV rms
EXCITATION OUTPUT CHARACTERISTICS (@ 2.5 kHz)
Excitation Voltage Range 2.1 24 2.1 24 V rms
Excitation Voltage
(R1 = Open)
8
1.2 2.1 1.2 2.1 V rms
(R1 = 12.7 kΩ)
8
2.6 4.1 2.6 4.1 V rms
(R1 = 487 Ω)
8
14 20 14 20 V rms
Excitation Voltage TC
9
600 600 ppm/°C
Output Current 30 30 mA rms
T
MIN
to T
MAX
12 12 mA rms
Short Circuit Current 60 60 mA
DC Offset Voltage (Differential, R1 = 12.7 kΩ)
T
MIN
to T
MAX
30 6100 30 6100 mV
Frequency 20 20k 20 20k Hz
Frequency TC, (R1 = 12.7 kΩ) 200 200 ppm/°C
Total Harmonic Distortion –50 –50 dB
SIGNAL INPUT CHARACTERISTICS
Signal Voltage 0.1 3.5 0.1 3.5 V rms
Input Impedance 200 200 kΩ
Input Bias Current (AIN and BIN) 1 5 1 5 µA
Signal Reference Bias Current 2 10 2 10 µA
Excitation Frequency 0 20 0 20 kHz
POWER SUPPLY REQUIREMENTS
Operating Range 13 36 13 36 V
Dual Supply Operation (±10 V Output) ±13 ±13 V
Single Supply Operation
0 to +10 V Output 17.5 17.5 V
0 to –10 V Output 17.5 17.5 V
Current (No Load at Signal and Excitation Outputs) 12 15 12 15 mA
T
MIN
to T
MAX
16 18 mA
TEMPERATURE RANGE
JR (SOIC) 0 +70 °C
AD (DIP) –40 +85 °C
PACKAGE OPTION
SOIC (R-20) AD598JR
Side Brazed DIP (D-20) AD598AD